Autofix

Preserve proportional scroll position when remeasuring list items. When
item heights change (e.g., due to font size changes), the scroll
position is now maintained relative to the item rather than jumping.

.factory/prompts/docs-automation/phase2-explore.md

@@ -1,55 +0,0 @@
-# Phase 2: Explore Repository
-
-You are analyzing a codebase to understand its structure before reviewing documentation impact.
-
-## Objective
-Produce a structured overview of the repository to inform subsequent documentation analysis.
-
-## Instructions
-
-1. **Identify Primary Languages and Frameworks**
-   - Scan for Cargo.toml, package.json, or other manifest files
-   - Note the primary language(s) and key dependencies
-
-2. **Map Documentation Structure**
-   - This project uses **mdBook** (https://rust-lang.github.io/mdBook/)
-   - Documentation is in `docs/src/`
-   - Table of contents: `docs/src/SUMMARY.md` (mdBook format: https://rust-lang.github.io/mdBook/format/summary.html)
-   - Style guide: `docs/.rules`
-   - Agent guidelines: `docs/AGENTS.md`
-   - Formatting: Prettier (config in `docs/.prettierrc`)
-
-3. **Identify Build and Tooling**
-   - Note build systems (cargo, npm, etc.)
-   - Identify documentation tooling (mdbook, etc.)
-
-4. **Output Format**
-Produce a JSON summary:
-
-```json
-{
-  "primary_language": "Rust",
-  "frameworks": ["GPUI"],
-  "documentation": {
-    "system": "mdBook",
-    "location": "docs/src/",
-    "toc_file": "docs/src/SUMMARY.md",
-    "toc_format": "https://rust-lang.github.io/mdBook/format/summary.html",
-    "style_guide": "docs/.rules",
-    "agent_guidelines": "docs/AGENTS.md",
-    "formatter": "prettier",
-    "formatter_config": "docs/.prettierrc",
-    "custom_preprocessor": "docs_preprocessor (handles {#kb action::Name} syntax)"
-  },
-  "key_directories": {
-    "source": "crates/",
-    "docs": "docs/src/",
-    "extensions": "extensions/"
-  }
-}
-```
-
-## Constraints
-- Read-only: Do not modify any files
-- Focus on structure, not content details
-- Complete within 2 minutes

.factory/prompts/docs-automation/phase3-analyze.md

@@ -1,57 +0,0 @@
-# Phase 3: Analyze Changes
-
-You are analyzing code changes to understand their nature and scope.
-
-## Objective
-Produce a clear, neutral summary of what changed in the codebase.
-
-## Input
-You will receive:
-- List of changed files from the triggering commit/PR
-- Repository structure from Phase 2
-
-## Instructions
-
-1. **Categorize Changed Files**
-   - Source code (which crates/modules)
-   - Configuration
-   - Tests
-   - Documentation (already existing)
-   - Other
-
-2. **Analyze Each Change**
-   - Review diffs for files likely to impact documentation
-   - Focus on: public APIs, settings, keybindings, commands, user-visible behavior
-
-3. **Identify What Did NOT Change**
-   - Note stable interfaces or behaviors
-   - Important for avoiding unnecessary documentation updates
-
-4. **Output Format**
-Produce a markdown summary:
-
-```markdown
-## Change Analysis
-
-### Changed Files Summary
-| Category | Files | Impact Level |
-| --- | --- | --- |
-| Source - [crate] | file1.rs, file2.rs | High/Medium/Low |
-| Settings | settings.json | Medium |
-| Tests | test_*.rs | None |
-
-### Behavioral Changes
-- **[Feature/Area]**: Description of what changed from user perspective
-- **[Feature/Area]**: Description...
-
-### Unchanged Areas
-- [Area]: Confirmed no changes to [specific behavior]
-
-### Files Requiring Deeper Review
-- `path/to/file.rs`: Reason for deeper review
-```
-
-## Constraints
-- Read-only: Do not modify any files
-- Neutral tone: Describe what changed, not whether it's good/bad
-- Do not propose documentation changes yet

.factory/prompts/docs-automation/phase4-plan.md

@@ -1,76 +0,0 @@
-# Phase 4: Plan Documentation Impact
-
-You are determining whether and how documentation should be updated based on code changes.
-
-## Objective
-Produce a structured documentation plan that will guide Phase 5 execution.
-
-## Documentation System
-This is an **mdBook** site (https://rust-lang.github.io/mdBook/):
-- `docs/src/SUMMARY.md` defines book structure per https://rust-lang.github.io/mdBook/format/summary.html
-- If adding new pages, they MUST be added to SUMMARY.md
-- Use `{#kb action::ActionName}` syntax for keybindings (custom preprocessor expands these)
-- Prettier formatting (80 char width) will be applied automatically
-
-## Input
-You will receive:
-- Change analysis from Phase 3
-- Repository structure from Phase 2
-- Documentation guidelines from `docs/AGENTS.md`
-
-## Instructions
-
-1. **Review AGENTS.md**
-   - Load and apply all rules from `docs/AGENTS.md`
-   - Respect scope boundaries (in-scope vs out-of-scope)
-
-2. **Evaluate Documentation Impact**
-   For each behavioral change from Phase 3:
-   - Does existing documentation cover this area?
-   - Is the documentation now inaccurate or incomplete?
-   - Classify per AGENTS.md "Change Classification" section
-
-3. **Identify Specific Updates**
-   For each required update:
-   - Exact file path
-   - Specific section or heading
-   - Type of change (update existing, add new, deprecate)
-   - Description of the change
-
-4. **Flag Uncertainty**
-   Explicitly mark:
-   - Assumptions you're making
-   - Areas where human confirmation is needed
-   - Ambiguous requirements
-
-5. **Output Format**
-Use the exact format specified in `docs/AGENTS.md` Phase 4 section:
-
-```markdown
-## Documentation Impact Assessment
-
-### Summary
-Brief description of code changes analyzed.
-
-### Documentation Updates Required: [Yes/No]
-
-### Planned Changes
-
-#### 1. [File Path]
-- **Section**: [Section name or "New section"]
-- **Change Type**: [Update/Add/Deprecate]
-- **Reason**: Why this change is needed
-- **Description**: What will be added/modified
-
-### Uncertainty Flags
-- [ ] [Description of any assumptions or areas needing confirmation]
-
-### No Changes Needed
-- [List files reviewed but not requiring updates, with brief reason]
-```
-
-## Constraints
-- Read-only: Do not modify any files
-- Conservative: When uncertain, flag for human review rather than planning changes
-- Scoped: Only plan changes that trace directly to code changes from Phase 3
-- No scope expansion: Do not plan "improvements" unrelated to triggering changes

.factory/prompts/docs-automation/phase5-apply.md

@@ -1,67 +0,0 @@
-# Phase 5: Apply Documentation Plan
-
-You are executing a pre-approved documentation plan for an **mdBook** documentation site.
-
-## Objective
-Implement exactly the changes specified in the documentation plan from Phase 4.
-
-## Documentation System
-- **mdBook**: https://rust-lang.github.io/mdBook/
-- **SUMMARY.md**: Follows mdBook format (https://rust-lang.github.io/mdBook/format/summary.html)
-- **Prettier**: Will be run automatically after this phase (80 char line width)
-- **Custom preprocessor**: Use `{#kb action::ActionName}` for keybindings instead of hardcoding
-
-## Input
-You will receive:
-- Documentation plan from Phase 4
-- Documentation guidelines from `docs/AGENTS.md`
-- Style rules from `docs/.rules`
-
-## Instructions
-
-1. **Validate Plan**
-   - Confirm all planned files are within scope per AGENTS.md
-   - Verify no out-of-scope files are targeted
-
-2. **Execute Each Planned Change**
-   For each item in "Planned Changes":
-   - Navigate to the specified file
-   - Locate the specified section
-   - Apply the described change
-   - Follow style rules from `docs/.rules`
-
-3. **Style Compliance**
-   Every edit must follow `docs/.rules`:
-   - Second person, present tense
-   - No hedging words ("simply", "just", "easily")
-   - Proper keybinding format (`Cmd+Shift+P`)
-   - Settings Editor first, JSON second
-   - Correct terminology (folder not directory, etc.)
-
-4. **Preserve Context**
-   - Maintain surrounding content structure
-   - Keep consistent heading levels
-   - Preserve existing cross-references
-
-## Constraints
-- Execute ONLY changes listed in the plan
-- Do not discover new documentation targets
-- Do not make stylistic improvements outside planned sections
-- Do not expand scope beyond what Phase 4 specified
-- If a planned change cannot be applied (file missing, section not found), skip and note it
-
-## Output
-After applying changes, output a summary:
-
-```markdown
-## Applied Changes
-
-### Successfully Applied
-- `path/to/file.md`: [Brief description of change]
-
-### Skipped (Could Not Apply)
-- `path/to/file.md`: [Reason - e.g., "Section not found"]
-
-### Warnings
-- [Any issues encountered during application]
-```

.factory/prompts/docs-automation/phase6-summarize.md

@@ -1,54 +0,0 @@
-# Phase 6: Summarize Changes
-
-You are generating a summary of documentation updates for PR review.
-
-## Objective
-Create a clear, reviewable summary of all documentation changes made.
-
-## Input
-You will receive:
-- Applied changes report from Phase 5
-- Original change analysis from Phase 3
-- Git diff of documentation changes
-
-## Instructions
-
-1. **Gather Change Information**
-   - List all modified documentation files
-   - Identify the corresponding code changes that triggered each update
-
-2. **Generate Summary**
-   Use the format specified in `docs/AGENTS.md` Phase 6 section:
-
-```markdown
-## Documentation Update Summary
-
-### Changes Made
-| File | Change | Related Code |
-| --- | --- | --- |
-| docs/src/path.md | Brief description | PR #123 or commit SHA |
-
-### Rationale
-Brief explanation of why these updates were made, linking back to the triggering code changes.
-
-### Review Notes
-- Items reviewers should pay special attention to
-- Any uncertainty flags from Phase 4 that were addressed
-- Assumptions made during documentation
-```
-
-3. **Add Context for Reviewers**
-   - Highlight any changes that might be controversial
-   - Note if any planned changes were skipped and why
-   - Flag areas where reviewer expertise is especially needed
-
-## Output Format
-The summary should be suitable for:
-- PR description body
-- Commit message (condensed version)
-- Team communication
-
-## Constraints
-- Read-only (documentation changes already applied in Phase 5)
-- Factual: Describe what was done, not justify why it's good
-- Complete: Account for all changes, including skipped items

.factory/prompts/docs-automation/phase7-commit.md

@@ -1,67 +0,0 @@
-# Phase 7: Commit and Open PR
-
-You are creating a git branch, committing documentation changes, and opening a PR.
-
-## Objective
-Package documentation updates into a reviewable pull request.
-
-## Input
-You will receive:
-- Summary from Phase 6
-- List of modified files
-
-## Instructions
-
-1. **Create Branch**
-   ```sh
-   git checkout -b docs/auto-update-{date}
-   ```
-   Use format: `docs/auto-update-YYYY-MM-DD` or `docs/auto-update-{short-sha}`
-
-2. **Stage and Commit**
-   - Stage only documentation files in `docs/src/`
-   - Do not stage any other files
-   
-   Commit message format:
-   ```
-   docs: auto-update documentation for [brief description]
-   
-   [Summary from Phase 6, condensed]
-   
-   Triggered by: [commit SHA or PR reference]
-   
-   Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
-   ```
-
-3. **Push Branch**
-   ```sh
-   git push -u origin docs/auto-update-{date}
-   ```
-
-4. **Create Pull Request**
-   Use the Phase 6 summary as the PR body.
-   
-   PR Title: `docs: [Brief description of documentation updates]`
-   
-   Labels (if available): `documentation`, `automated`
-   
-   Base branch: `main`
-
-## Constraints
-- Do NOT auto-merge
-- Do NOT request specific reviewers (let CODEOWNERS handle it)
-- Do NOT modify files outside `docs/src/`
-- If no changes to commit, exit gracefully with message "No documentation changes to commit"
-
-## Output
-```markdown
-## PR Created
-
-- **Branch**: docs/auto-update-{date}
-- **PR URL**: https://github.com/zed-industries/zed/pull/XXXX
-- **Status**: Ready for review
-
-### Commit
-- SHA: {commit-sha}
-- Files: {count} documentation files modified
-```

.github/actionlint.yml

@@ -25,7 +25,6 @@ self-hosted-runner:
     - namespace-profile-32x64-ubuntu-2204
     # Namespace Ubuntu 24.04 (like ubuntu-latest)
     - namespace-profile-2x4-ubuntu-2404
-    - namespace-profile-8x32-ubuntu-2404
     # Namespace Limited Preview
     - namespace-profile-8x16-ubuntu-2004-arm-m4
     - namespace-profile-8x32-ubuntu-2004-arm-m4

.github/workflows/autofix_pr.yml

@@ -54,10 +54,6 @@ jobs:
     - name: autofix_pr::run_autofix::run_cargo_fmt
       run: cargo fmt --all
       shell: bash -euxo pipefail {0}
-    - name: autofix_pr::run_autofix::run_cargo_fix
-      if: ${{ inputs.run_clippy }}
-      run: cargo fix --workspace --release --all-targets --all-features --allow-dirty --allow-staged
-      shell: bash -euxo pipefail {0}
     - name: autofix_pr::run_autofix::run_clippy_fix
       if: ${{ inputs.run_clippy }}
       run: cargo clippy --workspace --release --all-targets --all-features --fix --allow-dirty --allow-staged

.github/workflows/docs_automation.yml

@@ -1,264 +0,0 @@
-name: Documentation Automation
-
-on:
-  # push:
-  #   branches: [main]
-  #   paths:
-  #     - 'crates/**'
-  #     - 'extensions/**'
-  workflow_dispatch:
-    inputs:
-      pr_number:
-        description: 'PR number to analyze (gets full PR diff)'
-        required: false
-        type: string
-      trigger_sha:
-        description: 'Commit SHA to analyze (ignored if pr_number is set)'
-        required: false
-        type: string
-
-permissions:
-  contents: write
-  pull-requests: write
-
-env:
-  FACTORY_API_KEY: ${{ secrets.FACTORY_API_KEY }}
-  DROID_MODEL: claude-opus-4-5-20251101
-
-jobs:
-  docs-automation:
-    runs-on: ubuntu-latest
-    timeout-minutes: 30
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Install Droid CLI
-        id: install-droid
-        run: |
-          curl -fsSL https://app.factory.ai/cli | sh
-          echo "${HOME}/.local/bin" >> "$GITHUB_PATH"
-          echo "DROID_BIN=${HOME}/.local/bin/droid" >> "$GITHUB_ENV"
-          # Verify installation
-          "${HOME}/.local/bin/droid" --version
-
-      - name: Setup Node.js (for Prettier)
-        uses: actions/setup-node@v4
-        with:
-          node-version: '20'
-
-      - name: Install Prettier
-        run: npm install -g prettier
-
-      - name: Get changed files
-        id: changed
-        run: |
-          if [ -n "${{ inputs.pr_number }}" ]; then
-            # Get full PR diff
-            echo "Analyzing PR #${{ inputs.pr_number }}"
-            echo "source=pr" >> "$GITHUB_OUTPUT"
-            echo "ref=${{ inputs.pr_number }}" >> "$GITHUB_OUTPUT"
-            gh pr diff "${{ inputs.pr_number }}" --name-only > /tmp/changed_files.txt
-          elif [ -n "${{ inputs.trigger_sha }}" ]; then
-            # Get single commit diff
-            SHA="${{ inputs.trigger_sha }}"
-            echo "Analyzing commit $SHA"
-            echo "source=commit" >> "$GITHUB_OUTPUT"
-            echo "ref=$SHA" >> "$GITHUB_OUTPUT"
-            git diff --name-only "${SHA}^" "$SHA" > /tmp/changed_files.txt
-          else
-            # Default to current commit
-            SHA="${{ github.sha }}"
-            echo "Analyzing commit $SHA"
-            echo "source=commit" >> "$GITHUB_OUTPUT"
-            echo "ref=$SHA" >> "$GITHUB_OUTPUT"
-            git diff --name-only "${SHA}^" "$SHA" > /tmp/changed_files.txt || git diff --name-only HEAD~1 HEAD > /tmp/changed_files.txt
-          fi
-
-          echo "Changed files:"
-          cat /tmp/changed_files.txt
-        env:
-          GH_TOKEN: ${{ github.token }}
-
-      # Phase 0: Guardrails are loaded via AGENTS.md in each phase
-
-      # Phase 2: Explore Repository (Read-Only - default)
-      - name: "Phase 2: Explore Repository"
-        id: phase2
-        run: |
-          "$DROID_BIN" exec \
-            -m "$DROID_MODEL" \
-            -f .factory/prompts/docs-automation/phase2-explore.md \
-            > /tmp/phase2-output.txt 2>&1 || true
-          echo "Repository exploration complete"
-          cat /tmp/phase2-output.txt
-
-      # Phase 3: Analyze Changes (Read-Only - default)
-      - name: "Phase 3: Analyze Changes"
-        id: phase3
-        run: |
-          CHANGED_FILES=$(tr '\n' ' ' < /tmp/changed_files.txt)
-          echo "Analyzing changes in: $CHANGED_FILES"
-
-          # Build prompt with context
-          cat > /tmp/phase3-prompt.md << 'EOF'
-          $(cat .factory/prompts/docs-automation/phase3-analyze.md)
-
-          ## Context
-
-          ### Changed Files
-          $CHANGED_FILES
-
-          ### Phase 2 Output
-          $(cat /tmp/phase2-output.txt)
-          EOF
-
-          "$DROID_BIN" exec \
-            -m "$DROID_MODEL" \
-            "$(cat .factory/prompts/docs-automation/phase3-analyze.md)
-
-            Changed files: $CHANGED_FILES" \
-            > /tmp/phase3-output.md 2>&1 || true
-          echo "Change analysis complete"
-          cat /tmp/phase3-output.md
-
-      # Phase 4: Plan Documentation Impact (Read-Only - default)
-      - name: "Phase 4: Plan Documentation Impact"
-        id: phase4
-        run: |
-          "$DROID_BIN" exec \
-            -m "$DROID_MODEL" \
-            -f .factory/prompts/docs-automation/phase4-plan.md \
-            > /tmp/phase4-plan.md 2>&1 || true
-          echo "Documentation plan complete"
-          cat /tmp/phase4-plan.md
-
-          # Check if updates are required
-          if grep -q "NO_UPDATES_REQUIRED" /tmp/phase4-plan.md; then
-            echo "updates_required=false" >> "$GITHUB_OUTPUT"
-          else
-            echo "updates_required=true" >> "$GITHUB_OUTPUT"
-          fi
-
-      # Phase 5: Apply Plan (Write-Enabled with --auto medium)
-      - name: "Phase 5: Apply Documentation Plan"
-        id: phase5
-        if: steps.phase4.outputs.updates_required == 'true'
-        run: |
-          "$DROID_BIN" exec \
-            -m "$DROID_MODEL" \
-            --auto medium \
-            -f .factory/prompts/docs-automation/phase5-apply.md \
-            > /tmp/phase5-report.md 2>&1 || true
-          echo "Documentation updates applied"
-          cat /tmp/phase5-report.md
-
-      # Phase 5b: Format with Prettier
-      - name: "Phase 5b: Format with Prettier"
-        id: phase5b
-        if: steps.phase4.outputs.updates_required == 'true'
-        run: |
-          echo "Formatting documentation with Prettier..."
-          cd docs && prettier --write src/
-
-          echo "Verifying Prettier formatting passes..."
-          cd docs && prettier --check src/
-
-          echo "Prettier formatting complete"
-
-      # Phase 6: Summarize Changes (Read-Only - default)
-      - name: "Phase 6: Summarize Changes"
-        id: phase6
-        if: steps.phase4.outputs.updates_required == 'true'
-        run: |
-          # Get git diff of docs
-          git diff docs/src/ > /tmp/docs-diff.txt || true
-
-          "$DROID_BIN" exec \
-            -m "$DROID_MODEL" \
-            -f .factory/prompts/docs-automation/phase6-summarize.md \
-            > /tmp/phase6-summary.md 2>&1 || true
-          echo "Summary generated"
-          cat /tmp/phase6-summary.md
-
-      # Phase 7: Commit and Open PR
-      - name: "Phase 7: Create PR"
-        id: phase7
-        if: steps.phase4.outputs.updates_required == 'true'
-        run: |
-          # Check if there are actual changes
-          if git diff --quiet docs/src/; then
-            echo "No documentation changes detected"
-            exit 0
-          fi
-
-          # Configure git
-          git config user.name "factory-droid[bot]"
-          git config user.email "138933559+factory-droid[bot]@users.noreply.github.com"
-
-          # Daily batch branch - one branch per day, multiple commits accumulate
-          BRANCH_NAME="docs/auto-update-$(date +%Y-%m-%d)"
-
-          # Stash local changes from phase 5
-          git stash push -m "docs-automation-changes" -- docs/src/
-
-          # Check if branch already exists on remote
-          if git ls-remote --exit-code --heads origin "$BRANCH_NAME" > /dev/null 2>&1; then
-            echo "Branch $BRANCH_NAME exists, checking out and updating..."
-            git fetch origin "$BRANCH_NAME"
-            git checkout -B "$BRANCH_NAME" "origin/$BRANCH_NAME"
-          else
-            echo "Creating new branch $BRANCH_NAME..."
-            git checkout -b "$BRANCH_NAME"
-          fi
-
-          # Apply stashed changes
-          git stash pop || true
-
-          # Stage and commit
-          git add docs/src/
-          SUMMARY=$(head -50 < /tmp/phase6-summary.md)
-          git commit -m "docs: auto-update documentation
-
-          ${SUMMARY}
-
-          Triggered by: ${{ steps.changed.outputs.source }} ${{ steps.changed.outputs.ref }}
-
-          Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>"
-
-          # Push
-          git push -u origin "$BRANCH_NAME"
-
-          # Check if PR already exists for this branch
-          EXISTING_PR=$(gh pr list --head "$BRANCH_NAME" --json number --jq '.[0].number' || echo "")
-
-          if [ -n "$EXISTING_PR" ]; then
-            echo "PR #$EXISTING_PR already exists for branch $BRANCH_NAME, updated with new commit"
-          else
-            # Create new PR
-            gh pr create \
-              --title "docs: automated documentation update ($(date +%Y-%m-%d))" \
-              --body-file /tmp/phase6-summary.md \
-              --base main || true
-            echo "PR created on branch: $BRANCH_NAME"
-          fi
-        env:
-          GH_TOKEN: ${{ github.token }}
-
-      # Summary output
-      - name: "Summary"
-        if: always()
-        run: |
-          echo "## Documentation Automation Summary" >> "$GITHUB_STEP_SUMMARY"
-          echo "" >> "$GITHUB_STEP_SUMMARY"
-
-          if [ "${{ steps.phase4.outputs.updates_required }}" == "false" ]; then
-            echo "No documentation updates required for this change." >> "$GITHUB_STEP_SUMMARY"
-          elif [ -f /tmp/phase6-summary.md ]; then
-            cat /tmp/phase6-summary.md >> "$GITHUB_STEP_SUMMARY"
-          else
-            echo "Workflow completed. Check individual phase outputs for details." >> "$GITHUB_STEP_SUMMARY"
-          fi

.github/workflows/extension_bump.yml

@@ -66,7 +66,7 @@ jobs:
     if: |-
       (github.repository_owner == 'zed-industries' || github.repository_owner == 'zed-extensions') &&
       (inputs.force-bump == 'true' || needs.check_bump_needed.outputs.needs_bump == 'true')
-    runs-on: namespace-profile-2x4-ubuntu-2404
+    runs-on: namespace-profile-8x16-ubuntu-2204
     steps:
     - id: generate-token
       name: extension_bump::generate_token
@@ -79,7 +79,7 @@ jobs:
       with:
         clean: false
     - name: extension_bump::install_bump_2_version
-      run: pip install bump2version --break-system-packages
+      run: pip install bump2version
       shell: bash -euxo pipefail {0}
     - id: bump-version
       name: extension_bump::bump_version
@@ -119,7 +119,7 @@ jobs:
     needs:
     - check_bump_needed
     if: (github.repository_owner == 'zed-industries' || github.repository_owner == 'zed-extensions') && github.event_name == 'push' && github.ref == 'refs/heads/main' && needs.check_bump_needed.outputs.needs_bump == 'false'
-    runs-on: namespace-profile-2x4-ubuntu-2404
+    runs-on: namespace-profile-8x16-ubuntu-2204
     steps:
     - id: generate-token
       name: extension_bump::generate_token

.github/workflows/extension_release.yml

@@ -13,7 +13,7 @@ on:
 jobs:
   create_release:
     if: (github.repository_owner == 'zed-industries' || github.repository_owner == 'zed-extensions')
-    runs-on: namespace-profile-2x4-ubuntu-2404
+    runs-on: namespace-profile-8x16-ubuntu-2204
     steps:
     - id: generate-token
       name: extension_bump::generate_token

.github/workflows/extension_tests.yml

@@ -51,7 +51,7 @@ jobs:
     needs:
     - orchestrate
     if: needs.orchestrate.outputs.check_rust == 'true'
-    runs-on: namespace-profile-4x8-ubuntu-2204
+    runs-on: namespace-profile-16x32-ubuntu-2204
     steps:
     - name: steps::checkout_repo
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
@@ -79,7 +79,7 @@ jobs:
     needs:
     - orchestrate
     if: needs.orchestrate.outputs.check_extension == 'true'
-    runs-on: namespace-profile-8x32-ubuntu-2404
+    runs-on: namespace-profile-2x4-ubuntu-2404
     steps:
     - name: steps::checkout_repo
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683

.github/workflows/extension_workflow_rollout.yml

@@ -1,106 +0,0 @@
-# Generated from xtask::workflows::extension_workflow_rollout
-# Rebuild with `cargo xtask workflows`.
-name: extension_workflow_rollout
-env:
-  CARGO_TERM_COLOR: always
-on:
-  workflow_dispatch: {}
-jobs:
-  fetch_extension_repos:
-    runs-on: namespace-profile-2x4-ubuntu-2404
-    steps:
-    - id: list-repos
-      name: extension_workflow_rollout::fetch_extension_repos::get_repositories
-      uses: actions/github-script@v7
-      with:
-        script: |
-          const repos = await github.paginate(github.rest.repos.listForOrg, {
-              org: 'zed-extensions',
-              type: 'public',
-              per_page: 100,
-          });
-
-          const filteredRepos = repos
-              .filter(repo => !repo.archived)
-              .filter(repo => repo.name !== 'workflows' && repo.name !== 'material-icon-theme')
-              .map(repo => repo.name);
-
-          console.log(`Found ${filteredRepos.length} extension repos`);
-          return filteredRepos;
-        result-encoding: json
-    outputs:
-      repos: ${{ steps.list-repos.outputs.result }}
-    timeout-minutes: 5
-  rollout_workflows_to_extension:
-    needs:
-    - fetch_extension_repos
-    if: needs.fetch_extension_repos.outputs.repos != '[]'
-    runs-on: namespace-profile-2x4-ubuntu-2404
-    strategy:
-      matrix:
-        repo: ${{ fromJson(needs.fetch_extension_repos.outputs.repos) }}
-      fail-fast: false
-      max-parallel: 5
-    steps:
-    - id: generate-token
-      name: extension_bump::generate_token
-      uses: actions/create-github-app-token@v2
-      with:
-        app-id: ${{ secrets.ZED_ZIPPY_APP_ID }}
-        private-key: ${{ secrets.ZED_ZIPPY_APP_PRIVATE_KEY }}
-        owner: zed-extensions
-        repositories: ${{ matrix.repo }}
-        permission-pull-requests: write
-        permission-contents: write
-        permission-workflows: write
-    - name: checkout_zed_repo
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-      with:
-        clean: false
-        path: zed
-    - name: steps::checkout_repo_with_token
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-      with:
-        clean: false
-        token: ${{ steps.generate-token.outputs.token }}
-        repository: zed-extensions/${{ matrix.repo }}
-        path: extension
-    - name: extension_workflow_rollout::rollout_workflows_to_extension::copy_workflow_files
-      run: |
-        mkdir -p extension/.github/workflows
-        cp zed/extensions/workflows/shared/*.yml extension/.github/workflows/
-      shell: bash -euxo pipefail {0}
-    - id: short-sha
-      name: extension_workflow_rollout::rollout_workflows_to_extension::get_short_sha
-      run: |
-        echo "sha_short=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"
-      shell: bash -euxo pipefail {0}
-      working-directory: zed
-    - id: create-pr
-      name: extension_workflow_rollout::rollout_workflows_to_extension::create_pull_request
-      uses: peter-evans/create-pull-request@v7
-      with:
-        path: extension
-        title: Update CI workflows to `zed@${{ steps.short-sha.outputs.sha_short }}`
-        body: |
-          This PR updates the CI workflow files from the main Zed repository
-          based on the commit zed-industries/zed@${{ github.sha }}
-        commit-message: Update CI workflows to `zed@${{ steps.short-sha.outputs.sha_short }}`
-        branch: update-workflows
-        committer: zed-zippy[bot] <234243425+zed-zippy[bot]@users.noreply.github.com>
-        author: zed-zippy[bot] <234243425+zed-zippy[bot]@users.noreply.github.com>
-        base: main
-        delete-branch: true
-        token: ${{ steps.generate-token.outputs.token }}
-        sign-commits: true
-    - name: extension_workflow_rollout::rollout_workflows_to_extension::enable_auto_merge
-      run: |
-        PR_NUMBER="${{ steps.create-pr.outputs.pull-request-number }}"
-        if [ -n "$PR_NUMBER" ]; then
-            cd extension
-            gh pr merge "$PR_NUMBER" --auto --squash
-        fi
-      shell: bash -euxo pipefail {0}
-      env:
-        GH_TOKEN: ${{ steps.generate-token.outputs.token }}
-    timeout-minutes: 10

.github/workflows/good_first_issue_notifier.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   handle-good-first-issue:
-    if: github.event.label.name == '.contrib/good first issue' && github.repository_owner == 'zed-industries'
+    if: github.event.label.name == 'good first issue' && github.repository_owner == 'zed-industries'
     runs-on: ubuntu-latest
 
     steps:

CONTRIBUTING.md

@@ -23,6 +23,7 @@ In particular we love PRs that are:
 
 If you're looking for concrete ideas:
 
+- [Curated board of issues](https://github.com/orgs/zed-industries/projects/69) suitable for everyone from first-time contributors to seasoned community champions.
 - [Triaged bugs with confirmed steps to reproduce](https://github.com/zed-industries/zed/issues?q=is%3Aissue%20state%3Aopen%20type%3ABug%20label%3Astate%3Areproducible).
 - [Area labels](https://github.com/zed-industries/zed/labels?q=area%3A*) to browse bugs in a specific part of the product you care about (after clicking on an area label, add type:Bug to the search).
 

Cargo.lock

@@ -268,7 +268,6 @@ dependencies = [
  "client",
  "collections",
  "env_logger 0.11.8",
- "feature_flags",
  "fs",
  "futures 0.3.31",
  "gpui",
@@ -2381,6 +2380,7 @@ dependencies = [
 name = "buffer_diff"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "clock",
  "ctor",
  "futures 0.3.31",
@@ -3525,33 +3525,6 @@ dependencies = [
  "theme",
 ]
 
-[[package]]
-name = "component_preview"
-version = "0.1.0"
-dependencies = [
- "anyhow",
- "client",
- "collections",
- "component",
- "db",
- "fs",
- "gpui",
- "language",
- "log",
- "node_runtime",
- "notifications",
- "project",
- "release_channel",
- "reqwest_client",
- "session",
- "settings",
- "theme",
- "ui",
- "ui_input",
- "uuid",
- "workspace",
-]
-
 [[package]]
 name = "compression-codecs"
 version = "0.4.31"
@@ -5212,7 +5185,6 @@ dependencies = [
  "anyhow",
  "arrayvec",
  "brotli",
- "buffer_diff",
  "client",
  "clock",
  "cloud_api_types",
@@ -5250,9 +5222,7 @@ dependencies = [
  "strum 0.27.2",
  "telemetry",
  "telemetry_events",
- "text",
  "thiserror 2.0.17",
- "time",
  "ui",
  "util",
  "uuid",
@@ -5357,10 +5327,8 @@ dependencies = [
  "anyhow",
  "buffer_diff",
  "client",
- "clock",
  "cloud_llm_client",
  "codestral",
- "collections",
  "command_palette_hooks",
  "copilot",
  "edit_prediction",
@@ -5369,20 +5337,18 @@ dependencies = [
  "feature_flags",
  "fs",
  "futures 0.3.31",
+ "git",
  "gpui",
  "indoc",
  "language",
- "language_model",
+ "log",
  "lsp",
  "markdown",
  "menu",
  "multi_buffer",
  "paths",
- "pretty_assertions",
  "project",
  "regex",
- "release_channel",
- "semver",
  "serde_json",
  "settings",
  "supermaven",
@@ -5395,7 +5361,6 @@ dependencies = [
  "workspace",
  "zed_actions",
  "zeta_prompt",
- "zlog",
 ]
 
 [[package]]
@@ -8653,7 +8618,6 @@ dependencies = [
  "extension",
  "gpui",
  "language",
- "lsp",
  "paths",
  "project",
  "schemars",
@@ -20679,7 +20643,6 @@ dependencies = [
  "collections",
  "command_palette",
  "component",
- "component_preview",
  "copilot",
  "crashes",
  "dap",
@@ -20785,6 +20748,7 @@ dependencies = [
  "tree-sitter-md",
  "tree-sitter-rust",
  "ui",
+ "ui_input",
  "ui_prompt",
  "url",
  "urlencoding",
@@ -20964,7 +20928,7 @@ dependencies = [
 
 [[package]]
 name = "zed_glsl"
-version = "0.2.0"
+version = "0.1.0"
 dependencies = [
  "zed_extension_api 0.1.0",
 ]
@@ -20978,7 +20942,7 @@ dependencies = [
 
 [[package]]
 name = "zed_proto"
-version = "0.3.1"
+version = "0.3.0"
 dependencies = [
  "zed_extension_api 0.7.0",
 ]

Cargo.toml

@@ -39,7 +39,6 @@ members = [
     "crates/command_palette",
     "crates/command_palette_hooks",
     "crates/component",
-    "crates/component_preview",
     "crates/context_server",
     "crates/copilot",
     "crates/crashes",
@@ -276,7 +275,6 @@ collections = { path = "crates/collections", version = "0.1.0" }
 command_palette = { path = "crates/command_palette" }
 command_palette_hooks = { path = "crates/command_palette_hooks" }
 component = { path = "crates/component" }
-component_preview  = { path = "crates/component_preview" }
 context_server = { path = "crates/context_server" }
 copilot = { path = "crates/copilot" }
 crashes = { path = "crates/crashes" }

assets/keymaps/default-linux.json

@@ -55,13 +55,6 @@
       "down": "menu::SelectNext",
     },
   },
-  {
-    "context": "menu",
-    "bindings": {
-      "right": "menu::SelectChild",
-      "left": "menu::SelectParent",
-    },
-  },
   {
     "context": "Editor",
     "bindings": {
@@ -248,7 +241,6 @@
       "ctrl-alt-l": "agent::OpenRulesLibrary",
       "ctrl-i": "agent::ToggleProfileSelector",
       "ctrl-alt-/": "agent::ToggleModelSelector",
-      "alt-tab": "agent::CycleFavoriteModels",
       "ctrl-shift-j": "agent::ToggleNavigationMenu",
       "ctrl-alt-i": "agent::ToggleOptionsMenu",
       "ctrl-alt-shift-n": "agent::ToggleNewThreadMenu",
@@ -261,6 +253,7 @@
       "ctrl-y": "agent::AllowOnce",
       "ctrl-alt-y": "agent::AllowAlways",
       "ctrl-alt-z": "agent::RejectOnce",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -292,6 +285,38 @@
       "ctrl-alt-t": "agent::NewThread",
     },
   },
+  {
+    "context": "MessageEditor && !Picker > Editor && !use_modifier_to_send",
+    "bindings": {
+      "enter": "agent::Chat",
+      "ctrl-enter": "agent::ChatWithFollow",
+      "ctrl-i": "agent::ToggleProfileSelector",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "ctrl-shift-v": "agent::PasteRaw",
+    },
+  },
+  {
+    "context": "MessageEditor && !Picker > Editor && use_modifier_to_send",
+    "bindings": {
+      "ctrl-enter": "agent::Chat",
+      "enter": "editor::Newline",
+      "ctrl-i": "agent::ToggleProfileSelector",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "ctrl-shift-v": "agent::PasteRaw",
+    },
+  },
+  {
+    "context": "EditMessageEditor > Editor",
+    "bindings": {
+      "escape": "menu::Cancel",
+      "enter": "menu::Confirm",
+      "alt-enter": "editor::Newline",
+    },
+  },
   {
     "context": "AgentFeedbackMessageEditor > Editor",
     "bindings": {
@@ -306,25 +331,14 @@
       "ctrl-enter": "menu::Confirm",
     },
   },
-  {
-    "context": "AcpThread > Editor",
-    "use_key_equivalents": true,
-    "bindings": {
-      "ctrl-enter": "agent::ChatWithFollow",
-      "ctrl-i": "agent::ToggleProfileSelector",
-      "ctrl-shift-r": "agent::OpenAgentDiff",
-      "ctrl-shift-y": "agent::KeepAll",
-      "ctrl-shift-n": "agent::RejectAll",
-      "ctrl-shift-v": "agent::PasteRaw",
-      "shift-tab": "agent::CycleModeSelector",
-      "alt-tab": "agent::CycleFavoriteModels",
-    },
-  },
   {
     "context": "AcpThread > Editor && !use_modifier_to_send",
     "use_key_equivalents": true,
     "bindings": {
       "enter": "agent::Chat",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
     },
   },
   {
@@ -332,7 +346,11 @@
     "use_key_equivalents": true,
     "bindings": {
       "ctrl-enter": "agent::Chat",
-      "enter": "editor::Newline",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "shift-tab": "agent::CycleModeSelector",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -799,7 +817,7 @@
     },
   },
   {
-    "context": "InlineAssistant",
+    "context": "PromptEditor",
     "bindings": {
       "ctrl-[": "agent::CyclePreviousInlineAssist",
       "ctrl-]": "agent::CycleNextInlineAssist",

assets/keymaps/default-macos.json

@@ -54,13 +54,6 @@
       "ctrl-cmd-s": "workspace::ToggleWorktreeSecurity",
     },
   },
-  {
-    "context": "menu",
-    "bindings": {
-      "right": "menu::SelectChild",
-      "left": "menu::SelectParent",
-    },
-  },
   {
     "context": "Editor",
     "use_key_equivalents": true,
@@ -289,7 +282,6 @@
       "cmd-alt-p": "agent::ManageProfiles",
       "cmd-i": "agent::ToggleProfileSelector",
       "cmd-alt-/": "agent::ToggleModelSelector",
-      "alt-tab": "agent::CycleFavoriteModels",
       "cmd-shift-j": "agent::ToggleNavigationMenu",
       "cmd-alt-m": "agent::ToggleOptionsMenu",
       "cmd-alt-shift-n": "agent::ToggleNewThreadMenu",
@@ -302,6 +294,7 @@
       "cmd-y": "agent::AllowOnce",
       "cmd-alt-y": "agent::AllowAlways",
       "cmd-alt-z": "agent::RejectOnce",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -333,6 +326,41 @@
       "cmd-alt-t": "agent::NewThread",
     },
   },
+  {
+    "context": "MessageEditor && !Picker > Editor && !use_modifier_to_send",
+    "use_key_equivalents": true,
+    "bindings": {
+      "enter": "agent::Chat",
+      "cmd-enter": "agent::ChatWithFollow",
+      "cmd-i": "agent::ToggleProfileSelector",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "cmd-shift-y": "agent::KeepAll",
+      "cmd-shift-n": "agent::RejectAll",
+      "cmd-shift-v": "agent::PasteRaw",
+    },
+  },
+  {
+    "context": "MessageEditor && !Picker > Editor && use_modifier_to_send",
+    "use_key_equivalents": true,
+    "bindings": {
+      "cmd-enter": "agent::Chat",
+      "enter": "editor::Newline",
+      "cmd-i": "agent::ToggleProfileSelector",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "cmd-shift-y": "agent::KeepAll",
+      "cmd-shift-n": "agent::RejectAll",
+      "cmd-shift-v": "agent::PasteRaw",
+    },
+  },
+  {
+    "context": "EditMessageEditor > Editor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "menu::Cancel",
+      "enter": "menu::Confirm",
+      "alt-enter": "editor::Newline",
+    },
+  },
   {
     "context": "AgentFeedbackMessageEditor > Editor",
     "use_key_equivalents": true,
@@ -354,25 +382,16 @@
       "cmd-enter": "menu::Confirm",
     },
   },
-  {
-    "context": "AcpThread > Editor",
-    "use_key_equivalents": true,
-    "bindings": {
-      "shift-ctrl-r": "agent::OpenAgentDiff",
-      "cmd-shift-y": "agent::KeepAll",
-      "cmd-shift-n": "agent::RejectAll",
-      "cmd-enter": "agent::ChatWithFollow",
-      "cmd-shift-v": "agent::PasteRaw",
-      "cmd-i": "agent::ToggleProfileSelector",
-      "shift-tab": "agent::CycleModeSelector",
-      "alt-tab": "agent::CycleFavoriteModels",
-    },
-  },
   {
     "context": "AcpThread > Editor && !use_modifier_to_send",
     "use_key_equivalents": true,
     "bindings": {
       "enter": "agent::Chat",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "cmd-shift-y": "agent::KeepAll",
+      "cmd-shift-n": "agent::RejectAll",
+      "shift-tab": "agent::CycleModeSelector",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -380,7 +399,11 @@
     "use_key_equivalents": true,
     "bindings": {
       "cmd-enter": "agent::Chat",
-      "enter": "editor::Newline",
+      "shift-ctrl-r": "agent::OpenAgentDiff",
+      "cmd-shift-y": "agent::KeepAll",
+      "cmd-shift-n": "agent::RejectAll",
+      "shift-tab": "agent::CycleModeSelector",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -860,7 +883,7 @@
     },
   },
   {
-    "context": "InlineAssistant > Editor",
+    "context": "PromptEditor",
     "use_key_equivalents": true,
     "bindings": {
       "cmd-alt-/": "agent::ToggleModelSelector",

assets/keymaps/default-windows.json

@@ -54,13 +54,6 @@
       "down": "menu::SelectNext",
     },
   },
-  {
-    "context": "menu",
-    "bindings": {
-      "right": "menu::SelectChild",
-      "left": "menu::SelectParent",
-    },
-  },
   {
     "context": "Editor",
     "use_key_equivalents": true,
@@ -248,7 +241,6 @@
       "shift-alt-l": "agent::OpenRulesLibrary",
       "shift-alt-p": "agent::ManageProfiles",
       "ctrl-i": "agent::ToggleProfileSelector",
-      "alt-tab": "agent::CycleFavoriteModels",
       "shift-alt-/": "agent::ToggleModelSelector",
       "shift-alt-j": "agent::ToggleNavigationMenu",
       "shift-alt-i": "agent::ToggleOptionsMenu",
@@ -262,6 +254,7 @@
       "shift-alt-a": "agent::AllowOnce",
       "ctrl-alt-y": "agent::AllowAlways",
       "shift-alt-z": "agent::RejectOnce",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -294,6 +287,41 @@
       "ctrl-alt-t": "agent::NewThread",
     },
   },
+  {
+    "context": "MessageEditor && !Picker > Editor && !use_modifier_to_send",
+    "use_key_equivalents": true,
+    "bindings": {
+      "enter": "agent::Chat",
+      "ctrl-enter": "agent::ChatWithFollow",
+      "ctrl-i": "agent::ToggleProfileSelector",
+      "ctrl-shift-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "ctrl-shift-v": "agent::PasteRaw",
+    },
+  },
+  {
+    "context": "MessageEditor && !Picker > Editor && use_modifier_to_send",
+    "use_key_equivalents": true,
+    "bindings": {
+      "ctrl-enter": "agent::Chat",
+      "enter": "editor::Newline",
+      "ctrl-i": "agent::ToggleProfileSelector",
+      "ctrl-shift-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "ctrl-shift-v": "agent::PasteRaw",
+    },
+  },
+  {
+    "context": "EditMessageEditor > Editor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "menu::Cancel",
+      "enter": "menu::Confirm",
+      "alt-enter": "editor::Newline",
+    },
+  },
   {
     "context": "AgentFeedbackMessageEditor > Editor",
     "use_key_equivalents": true,
@@ -309,25 +337,16 @@
       "ctrl-enter": "menu::Confirm",
     },
   },
-  {
-    "context": "AcpThread > Editor",
-    "use_key_equivalents": true,
-    "bindings": {
-      "ctrl-enter": "agent::ChatWithFollow",
-      "ctrl-i": "agent::ToggleProfileSelector",
-      "ctrl-shift-r": "agent::OpenAgentDiff",
-      "ctrl-shift-y": "agent::KeepAll",
-      "ctrl-shift-n": "agent::RejectAll",
-      "ctrl-shift-v": "agent::PasteRaw",
-      "shift-tab": "agent::CycleModeSelector",
-      "alt-tab": "agent::CycleFavoriteModels",
-    },
-  },
   {
     "context": "AcpThread > Editor && !use_modifier_to_send",
     "use_key_equivalents": true,
     "bindings": {
       "enter": "agent::Chat",
+      "ctrl-shift-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "shift-tab": "agent::CycleModeSelector",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -335,7 +354,11 @@
     "use_key_equivalents": true,
     "bindings": {
       "ctrl-enter": "agent::Chat",
-      "enter": "editor::Newline",
+      "ctrl-shift-r": "agent::OpenAgentDiff",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll",
+      "shift-tab": "agent::CycleModeSelector",
+      "alt-tab": "agent::CycleFavoriteModels",
     },
   },
   {
@@ -803,7 +826,7 @@
     },
   },
   {
-    "context": "InlineAssistant",
+    "context": "PromptEditor",
     "use_key_equivalents": true,
     "bindings": {
       "ctrl-[": "agent::CyclePreviousInlineAssist",

assets/keymaps/linux/cursor.json

@@ -24,7 +24,7 @@
     },
   },
   {
-    "context": "InlineAssistant > Editor",
+    "context": "InlineAssistEditor",
     "use_key_equivalents": true,
     "bindings": {
       "ctrl-shift-backspace": "editor::Cancel",

assets/keymaps/macos/cursor.json

@@ -24,7 +24,7 @@
     },
   },
   {
-    "context": "InlineAssistant > Editor",
+    "context": "InlineAssistEditor",
     "use_key_equivalents": true,
     "bindings": {
       "cmd-shift-backspace": "editor::Cancel",

crates/acp_thread/src/acp_thread.rs

@@ -11,7 +11,6 @@ use language::language_settings::FormatOnSave;
 pub use mention::*;
 use project::lsp_store::{FormatTrigger, LspFormatTarget};
 use serde::{Deserialize, Serialize};
-use serde_json::to_string_pretty;
 use settings::Settings as _;
 use task::{Shell, ShellBuilder};
 pub use terminal::*;
@@ -884,7 +883,6 @@ pub enum AcpThreadEvent {
     Refusal,
     AvailableCommandsUpdated(Vec<acp::AvailableCommand>),
     ModeUpdated(acp::SessionModeId),
-    ConfigOptionsUpdated(Vec<acp::SessionConfigOption>),
 }
 
 impl EventEmitter<AcpThreadEvent> for AcpThread {}
@@ -1194,10 +1192,6 @@ impl AcpThread {
                 current_mode_id,
                 ..
             }) => cx.emit(AcpThreadEvent::ModeUpdated(current_mode_id)),
-            acp::SessionUpdate::ConfigOptionUpdate(acp::ConfigOptionUpdate {
-                config_options,
-                ..
-            }) => cx.emit(AcpThreadEvent::ConfigOptionsUpdated(config_options)),
             _ => {}
         }
         Ok(())
@@ -1998,42 +1992,37 @@ impl AcpThread {
     fn update_last_checkpoint(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
         let git_store = self.project.read(cx).git_store().clone();
 
-        let Some((_, message)) = self.last_user_message() else {
+        let old_checkpoint = if let Some((_, message)) = self.last_user_message() {
+            if let Some(checkpoint) = message.checkpoint.as_ref() {
+                checkpoint.git_checkpoint.clone()
+            } else {
+                return Task::ready(Ok(()));
+            }
+        } else {
             return Task::ready(Ok(()));
         };
-        let Some(user_message_id) = message.id.clone() else {
-            return Task::ready(Ok(()));
-        };
-        let Some(checkpoint) = message.checkpoint.as_ref() else {
-            return Task::ready(Ok(()));
-        };
-        let old_checkpoint = checkpoint.git_checkpoint.clone();
 
         let new_checkpoint = git_store.update(cx, |git, cx| git.checkpoint(cx));
         cx.spawn(async move |this, cx| {
-            let Some(new_checkpoint) = new_checkpoint
+            let new_checkpoint = new_checkpoint
                 .await
                 .context("failed to get new checkpoint")
-                .log_err()
-            else {
-                return Ok(());
-            };
-
-            let equal = git_store
-                .update(cx, |git, cx| {
-                    git.compare_checkpoints(old_checkpoint.clone(), new_checkpoint, cx)
-                })?
-                .await
-                .unwrap_or(true);
-
-            this.update(cx, |this, cx| {
-                if let Some((ix, message)) = this.user_message_mut(&user_message_id) {
-                    if let Some(checkpoint) = message.checkpoint.as_mut() {
-                        checkpoint.show = !equal;
-                        cx.emit(AcpThreadEvent::EntryUpdated(ix));
-                    }
-                }
-            })?;
+                .log_err();
+            if let Some(new_checkpoint) = new_checkpoint {
+                let equal = git_store
+                    .update(cx, |git, cx| {
+                        git.compare_checkpoints(old_checkpoint.clone(), new_checkpoint, cx)
+                    })?
+                    .await
+                    .unwrap_or(true);
+                this.update(cx, |this, cx| {
+                    let (ix, message) = this.last_user_message().context("no user message")?;
+                    let checkpoint = message.checkpoint.as_mut().context("no checkpoint")?;
+                    checkpoint.show = !equal;
+                    cx.emit(AcpThreadEvent::EntryUpdated(ix));
+                    anyhow::Ok(())
+                })??;
+            }
 
             Ok(())
         })
@@ -2433,10 +2422,8 @@ fn markdown_for_raw_output(
             )
         })),
         value => Some(cx.new(|cx| {
-            let pretty_json = to_string_pretty(value).unwrap_or_else(|_| value.to_string());
-
             Markdown::new(
-                format!("```json\n{}\n```", pretty_json).into(),
+                format!("```json\n{}\n```", value).into(),
                 Some(language_registry.clone()),
                 None,
                 cx,
@@ -4079,67 +4066,4 @@ mod tests {
             "Should have exactly 2 terminals (the completed ones from before checkpoint)"
         );
     }
-
-    /// Tests that update_last_checkpoint correctly updates the original message's checkpoint
-    /// even when a new user message is added while the async checkpoint comparison is in progress.
-    ///
-    /// This is a regression test for a bug where update_last_checkpoint would fail with
-    /// "no checkpoint" if a new user message (without a checkpoint) was added between when
-    /// update_last_checkpoint started and when its async closure ran.
-    #[gpui::test]
-    async fn test_update_last_checkpoint_with_new_message_added(cx: &mut TestAppContext) {
-        init_test(cx);
-
-        let fs = FakeFs::new(cx.executor());
-        fs.insert_tree(path!("/test"), json!({".git": {}, "file.txt": "content"}))
-            .await;
-        let project = Project::test(fs.clone(), [Path::new(path!("/test"))], cx).await;
-
-        let handler_done = Arc::new(AtomicBool::new(false));
-        let handler_done_clone = handler_done.clone();
-        let connection = Rc::new(FakeAgentConnection::new().on_user_message(
-            move |_, _thread, _cx| {
-                handler_done_clone.store(true, SeqCst);
-                async move { Ok(acp::PromptResponse::new(acp::StopReason::EndTurn)) }.boxed_local()
-            },
-        ));
-
-        let thread = cx
-            .update(|cx| connection.new_thread(project, Path::new(path!("/test")), cx))
-            .await
-            .unwrap();
-
-        let send_future = thread.update(cx, |thread, cx| thread.send_raw("First message", cx));
-        let send_task = cx.background_executor.spawn(send_future);
-
-        // Tick until handler completes, then a few more to let update_last_checkpoint start
-        while !handler_done.load(SeqCst) {
-            cx.executor().tick();
-        }
-        for _ in 0..5 {
-            cx.executor().tick();
-        }
-
-        thread.update(cx, |thread, cx| {
-            thread.push_entry(
-                AgentThreadEntry::UserMessage(UserMessage {
-                    id: Some(UserMessageId::new()),
-                    content: ContentBlock::Empty,
-                    chunks: vec!["Injected message (no checkpoint)".into()],
-                    checkpoint: None,
-                    indented: false,
-                }),
-                cx,
-            );
-        });
-
-        cx.run_until_parked();
-        let result = send_task.await;
-
-        assert!(
-            result.is_ok(),
-            "send should succeed even when new message added during update_last_checkpoint: {:?}",
-            result.err()
-        );
-    }
 }

crates/acp_thread/src/connection.rs

@@ -86,14 +86,6 @@ pub trait AgentConnection {
         None
     }
 
-    fn session_config_options(
-        &self,
-        _session_id: &acp::SessionId,
-        _cx: &App,
-    ) -> Option<Rc<dyn AgentSessionConfigOptions>> {
-        None
-    }
-
     fn into_any(self: Rc<Self>) -> Rc<dyn Any>;
 }
 
@@ -133,26 +125,6 @@ pub trait AgentSessionModes {
     fn set_mode(&self, mode: acp::SessionModeId, cx: &mut App) -> Task<Result<()>>;
 }
 
-pub trait AgentSessionConfigOptions {
-    /// Get all current config options with their state
-    fn config_options(&self) -> Vec<acp::SessionConfigOption>;
-
-    /// Set a config option value
-    /// Returns the full updated list of config options
-    fn set_config_option(
-        &self,
-        config_id: acp::SessionConfigId,
-        value: acp::SessionConfigValueId,
-        cx: &mut App,
-    ) -> Task<Result<Vec<acp::SessionConfigOption>>>;
-
-    /// Whenever the config options are updated the receiver will be notified.
-    /// Optional for agents that don't update their config options dynamically.
-    fn watch(&self, _cx: &mut App) -> Option<watch::Receiver<()>> {
-        None
-    }
-}
-
 #[derive(Debug)]
 pub struct AuthRequired {
     pub description: Option<String>,
@@ -230,6 +202,12 @@ pub trait AgentModelSelector: 'static {
     fn should_render_footer(&self) -> bool {
         false
     }
+
+    /// Whether this selector supports the favorites feature.
+    /// Only the native agent uses the model ID format that maps to settings.
+    fn supports_favorites(&self) -> bool {
+        false
+    }
 }
 
 /// Icon for a model in the model selector.

crates/acp_thread/src/diff.rs

@@ -1,10 +1,10 @@
 use anyhow::Result;
-use buffer_diff::BufferDiff;
+use buffer_diff::{BufferDiff, BufferDiffSnapshot};
 use editor::{MultiBuffer, PathKey, multibuffer_context_lines};
 use gpui::{App, AppContext, AsyncApp, Context, Entity, Subscription, Task};
 use itertools::Itertools;
 use language::{
-    Anchor, Buffer, Capability, LanguageRegistry, OffsetRangeExt as _, Point, TextBuffer,
+    Anchor, Buffer, Capability, LanguageRegistry, OffsetRangeExt as _, Point, Rope, TextBuffer,
 };
 use std::{cmp::Reverse, ops::Range, path::Path, sync::Arc};
 use util::ResultExt;
@@ -49,15 +49,15 @@ impl Diff {
                     .update(cx, |multibuffer, cx| {
                         let hunk_ranges = {
                             let buffer = buffer.read(cx);
-                            diff.read(cx)
-                                .snapshot(cx)
-                                .hunks_intersecting_range(
-                                    Anchor::min_for_buffer(buffer.remote_id())
-                                        ..Anchor::max_for_buffer(buffer.remote_id()),
-                                    buffer,
-                                )
-                                .map(|diff_hunk| diff_hunk.buffer_range.to_point(buffer))
-                                .collect::<Vec<_>>()
+                            let diff = diff.read(cx);
+                            diff.hunks_intersecting_range(
+                                Anchor::min_for_buffer(buffer.remote_id())
+                                    ..Anchor::max_for_buffer(buffer.remote_id()),
+                                buffer,
+                                cx,
+                            )
+                            .map(|diff_hunk| diff_hunk.buffer_range.to_point(buffer))
+                            .collect::<Vec<_>>()
                         };
 
                         multibuffer.set_excerpts_for_path(
@@ -86,9 +86,17 @@ impl Diff {
 
     pub fn new(buffer: Entity<Buffer>, cx: &mut Context<Self>) -> Self {
         let buffer_text_snapshot = buffer.read(cx).text_snapshot();
+        let base_text_snapshot = buffer.read(cx).snapshot();
+        let base_text = base_text_snapshot.text();
+        debug_assert_eq!(buffer_text_snapshot.text(), base_text);
         let buffer_diff = cx.new(|cx| {
-            let mut diff = BufferDiff::new_unchanged(&buffer_text_snapshot, cx);
-            let secondary_diff = cx.new(|cx| BufferDiff::new_unchanged(&buffer_text_snapshot, cx));
+            let mut diff = BufferDiff::new_unchanged(&buffer_text_snapshot, base_text_snapshot);
+            let snapshot = diff.snapshot(cx);
+            let secondary_diff = cx.new(|cx| {
+                let mut diff = BufferDiff::new(&buffer_text_snapshot, cx);
+                diff.set_snapshot(snapshot, &buffer_text_snapshot, cx);
+                diff
+            });
             diff.set_secondary_diff(secondary_diff);
             diff
         });
@@ -101,7 +109,7 @@ impl Diff {
 
         Self::Pending(PendingDiff {
             multibuffer,
-            base_text: Arc::from(buffer_text_snapshot.text().as_str()),
+            base_text: Arc::new(base_text),
             _subscription: cx.observe(&buffer, |this, _, cx| {
                 if let Diff::Pending(diff) = this {
                     diff.update(cx);
@@ -168,7 +176,7 @@ impl Diff {
                 new_buffer,
                 ..
             }) => {
-                base_text.as_ref() != old_text
+                base_text.as_str() != old_text
                     || !new_buffer.read(cx).as_rope().chunks().equals_str(new_text)
             }
             Diff::Finalized(FinalizedDiff {
@@ -176,7 +184,7 @@ impl Diff {
                 new_buffer,
                 ..
             }) => {
-                base_text.as_ref() != old_text
+                base_text.as_str() != old_text
                     || !new_buffer.read(cx).as_rope().chunks().equals_str(new_text)
             }
         }
@@ -185,7 +193,7 @@ impl Diff {
 
 pub struct PendingDiff {
     multibuffer: Entity<MultiBuffer>,
-    base_text: Arc<str>,
+    base_text: Arc<String>,
     new_buffer: Entity<Buffer>,
     diff: Entity<BufferDiff>,
     revealed_ranges: Vec<Range<Anchor>>,
@@ -200,22 +208,21 @@ impl PendingDiff {
         let base_text = self.base_text.clone();
         self.update_diff = cx.spawn(async move |diff, cx| {
             let text_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot())?;
-            let language = buffer.read_with(cx, |buffer, _| buffer.language().cloned())?;
-            let update = buffer_diff
-                .update(cx, |diff, cx| {
-                    diff.update_diff(
-                        text_snapshot.clone(),
-                        Some(base_text.clone()),
-                        false,
-                        language,
-                        cx,
-                    )
-                })?
-                .await;
+            let diff_snapshot = BufferDiff::update_diff(
+                buffer_diff.clone(),
+                text_snapshot.clone(),
+                Some(base_text),
+                false,
+                false,
+                None,
+                None,
+                cx,
+            )
+            .await?;
             buffer_diff.update(cx, |diff, cx| {
-                diff.set_snapshot(update.clone(), &text_snapshot, cx);
+                diff.set_snapshot(diff_snapshot.clone(), &text_snapshot, cx);
                 diff.secondary_diff().unwrap().update(cx, |diff, cx| {
-                    diff.set_snapshot(update, &text_snapshot, cx);
+                    diff.set_snapshot(diff_snapshot.clone(), &text_snapshot, cx);
                 });
             })?;
             diff.update(cx, |diff, cx| {
@@ -312,14 +319,13 @@ impl PendingDiff {
 
     fn excerpt_ranges(&self, cx: &App) -> Vec<Range<Point>> {
         let buffer = self.new_buffer.read(cx);
-        let mut ranges = self
-            .diff
-            .read(cx)
-            .snapshot(cx)
+        let diff = self.diff.read(cx);
+        let mut ranges = diff
             .hunks_intersecting_range(
                 Anchor::min_for_buffer(buffer.remote_id())
                     ..Anchor::max_for_buffer(buffer.remote_id()),
                 buffer,
+                cx,
             )
             .map(|diff_hunk| diff_hunk.buffer_range.to_point(buffer))
             .collect::<Vec<_>>();
@@ -351,47 +357,60 @@ impl PendingDiff {
 
 pub struct FinalizedDiff {
     path: String,
-    base_text: Arc<str>,
+    base_text: Arc<String>,
     new_buffer: Entity<Buffer>,
     multibuffer: Entity<MultiBuffer>,
     _update_diff: Task<Result<()>>,
 }
 
 async fn build_buffer_diff(
-    old_text: Arc<str>,
+    old_text: Arc<String>,
     buffer: &Entity<Buffer>,
     language_registry: Option<Arc<LanguageRegistry>>,
     cx: &mut AsyncApp,
 ) -> Result<Entity<BufferDiff>> {
-    let language = cx.update(|cx| buffer.read(cx).language().cloned())?;
     let buffer = cx.update(|cx| buffer.read(cx).snapshot())?;
 
-    let secondary_diff = cx.new(|cx| BufferDiff::new(&buffer, cx))?;
-
-    let update = secondary_diff
-        .update(cx, |secondary_diff, cx| {
-            secondary_diff.update_diff(
-                buffer.text.clone(),
-                Some(old_text),
-                true,
-                language.clone(),
+    let old_text_rope = cx
+        .background_spawn({
+            let old_text = old_text.clone();
+            async move { Rope::from(old_text.as_str()) }
+        })
+        .await;
+    let base_buffer = cx
+        .update(|cx| {
+            Buffer::build_snapshot(
+                old_text_rope,
+                buffer.language().cloned(),
+                language_registry,
                 cx,
             )
         })?
         .await;
 
-    secondary_diff.update(cx, |secondary_diff, cx| {
-        secondary_diff.language_changed(language.clone(), language_registry.clone(), cx);
-        secondary_diff.set_snapshot(update.clone(), &buffer, cx);
+    let diff_snapshot = cx
+        .update(|cx| {
+            BufferDiffSnapshot::new_with_base_buffer(
+                buffer.text.clone(),
+                Some(old_text),
+                base_buffer,
+                cx,
+            )
+        })?
+        .await;
+
+    let secondary_diff = cx.new(|cx| {
+        let mut diff = BufferDiff::new(&buffer, cx);
+        diff.set_snapshot(diff_snapshot.clone(), &buffer, cx);
+        diff
     })?;
 
-    let diff = cx.new(|cx| BufferDiff::new(&buffer, cx))?;
-    diff.update(cx, |diff, cx| {
-        diff.language_changed(language, language_registry, cx);
-        diff.set_snapshot(update.clone(), &buffer, cx);
+    cx.new(|cx| {
+        let mut diff = BufferDiff::new(&buffer.text, cx);
+        diff.set_snapshot(diff_snapshot, &buffer, cx);
         diff.set_secondary_diff(secondary_diff);
-    })?;
-    Ok(diff)
+        diff
+    })
 }
 
 #[cfg(test)]

crates/acp_tools/src/acp_tools.rs

@@ -4,20 +4,22 @@ use std::{
     fmt::Display,
     rc::{Rc, Weak},
     sync::Arc,
+    time::Duration,
 };
 
 use agent_client_protocol as acp;
 use collections::HashMap;
 use gpui::{
-    App, Empty, Entity, EventEmitter, FocusHandle, Focusable, Global, ListAlignment, ListState,
-    StyleRefinement, Subscription, Task, TextStyleRefinement, Window, actions, list, prelude::*,
+    App, ClipboardItem, Empty, Entity, EventEmitter, FocusHandle, Focusable, Global, ListAlignment,
+    ListState, StyleRefinement, Subscription, Task, TextStyleRefinement, Window, actions, list,
+    prelude::*,
 };
 use language::LanguageRegistry;
 use markdown::{CodeBlockRenderer, Markdown, MarkdownElement, MarkdownStyle};
 use project::Project;
 use settings::Settings;
 use theme::ThemeSettings;
-use ui::{CopyButton, Tooltip, WithScrollbar, prelude::*};
+use ui::{Tooltip, WithScrollbar, prelude::*};
 use util::ResultExt as _;
 use workspace::{
     Item, ItemHandle, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
@@ -542,11 +544,15 @@ impl Render for AcpTools {
 
 pub struct AcpToolsToolbarItemView {
     acp_tools: Option<Entity<AcpTools>>,
+    just_copied: bool,
 }
 
 impl AcpToolsToolbarItemView {
     pub fn new() -> Self {
-        Self { acp_tools: None }
+        Self {
+            acp_tools: None,
+            just_copied: false,
+        }
     }
 }
 
@@ -566,14 +572,37 @@ impl Render for AcpToolsToolbarItemView {
         h_flex()
             .gap_2()
             .child({
-                let message = acp_tools
-                    .read(cx)
-                    .serialize_observed_messages()
-                    .unwrap_or_default();
+                let acp_tools = acp_tools.clone();
+                IconButton::new(
+                    "copy_all_messages",
+                    if self.just_copied {
+                        IconName::Check
+                    } else {
+                        IconName::Copy
+                    },
+                )
+                .icon_size(IconSize::Small)
+                .tooltip(Tooltip::text(if self.just_copied {
+                    "Copied!"
+                } else {
+                    "Copy All Messages"
+                }))
+                .disabled(!has_messages)
+                .on_click(cx.listener(move |this, _, _window, cx| {
+                    if let Some(content) = acp_tools.read(cx).serialize_observed_messages() {
+                        cx.write_to_clipboard(ClipboardItem::new_string(content));
 
-                CopyButton::new(message)
-                    .tooltip_label("Copy All Messages")
-                    .disabled(!has_messages)
+                        this.just_copied = true;
+                        cx.spawn(async move |this, cx| {
+                            cx.background_executor().timer(Duration::from_secs(2)).await;
+                            this.update(cx, |this, cx| {
+                                this.just_copied = false;
+                                cx.notify();
+                            })
+                        })
+                        .detach();
+                    }
+                }))
             })
             .child(
                 IconButton::new("clear_messages", IconName::Trash)

crates/action_log/src/action_log.rs

@@ -6,7 +6,7 @@ use futures::{FutureExt, StreamExt, channel::mpsc};
 use gpui::{
     App, AppContext, AsyncApp, Context, Entity, SharedString, Subscription, Task, WeakEntity,
 };
-use language::{Anchor, Buffer, BufferEvent, Point, ToPoint};
+use language::{Anchor, Buffer, BufferEvent, DiskState, Point, ToPoint};
 use project::{Project, ProjectItem, lsp_store::OpenLspBufferHandle};
 use std::{cmp, ops::Range, sync::Arc};
 use text::{Edit, Patch, Rope};
@@ -150,7 +150,7 @@ impl ActionLog {
                 if buffer
                     .read(cx)
                     .file()
-                    .is_some_and(|file| file.disk_state().is_deleted())
+                    .is_some_and(|file| file.disk_state() == DiskState::Deleted)
                 {
                     // If the buffer had been edited by a tool, but it got
                     // deleted externally, we want to stop tracking it.
@@ -162,7 +162,7 @@ impl ActionLog {
                 if buffer
                     .read(cx)
                     .file()
-                    .is_some_and(|file| !file.disk_state().is_deleted())
+                    .is_some_and(|file| file.disk_state() != DiskState::Deleted)
                 {
                     // If the buffer had been deleted by a tool, but it got
                     // resurrected externally, we want to clear the edits we
@@ -262,7 +262,7 @@ impl ActionLog {
                         );
                     }
 
-                    (Arc::from(base_text.to_string().as_str()), base_text)
+                    (Arc::new(base_text.to_string()), base_text)
                 }
             });
 
@@ -302,7 +302,7 @@ impl ActionLog {
                     .context("buffer not tracked")?;
                 let old_unreviewed_edits = tracked_buffer.unreviewed_edits.clone();
                 let agent_diff_base = tracked_buffer.diff_base.clone();
-                let git_diff_base = git_diff.read(cx).base_text(cx).as_rope().clone();
+                let git_diff_base = git_diff.read(cx).base_text().as_rope().clone();
                 let buffer_text = tracked_buffer.snapshot.as_rope().clone();
                 anyhow::Ok(cx.background_spawn(async move {
                     let mut old_unreviewed_edits = old_unreviewed_edits.into_iter().peekable();
@@ -352,7 +352,7 @@ impl ActionLog {
                     }
 
                     (
-                        Arc::from(new_agent_diff_base.to_string().as_str()),
+                        Arc::new(new_agent_diff_base.to_string()),
                         new_agent_diff_base,
                     )
                 }))
@@ -374,11 +374,11 @@ impl ActionLog {
         this: &WeakEntity<ActionLog>,
         buffer: &Entity<Buffer>,
         buffer_snapshot: text::BufferSnapshot,
-        new_base_text: Arc<str>,
+        new_base_text: Arc<String>,
         new_diff_base: Rope,
         cx: &mut AsyncApp,
     ) -> Result<()> {
-        let (diff, language) = this.read_with(cx, |this, cx| {
+        let (diff, language, language_registry) = this.read_with(cx, |this, cx| {
             let tracked_buffer = this
                 .tracked_buffers
                 .get(buffer)
@@ -386,28 +386,25 @@ impl ActionLog {
             anyhow::Ok((
                 tracked_buffer.diff.clone(),
                 buffer.read(cx).language().cloned(),
+                buffer.read(cx).language_registry(),
             ))
         })??;
-        let update = diff.update(cx, |diff, cx| {
-            diff.update_diff(
-                buffer_snapshot.clone(),
-                Some(new_base_text),
-                true,
-                language,
-                cx,
-            )
-        });
+        let diff_snapshot = BufferDiff::update_diff(
+            diff.clone(),
+            buffer_snapshot.clone(),
+            Some(new_base_text),
+            true,
+            false,
+            language,
+            language_registry,
+            cx,
+        )
+        .await;
         let mut unreviewed_edits = Patch::default();
-        if let Ok(update) = update {
-            let update = update.await;
-
-            let diff_snapshot = diff.update(cx, |diff, cx| {
-                diff.set_snapshot(update.clone(), &buffer_snapshot, cx);
-                diff.snapshot(cx)
-            })?;
-
+        if let Ok(diff_snapshot) = diff_snapshot {
             unreviewed_edits = cx
                 .background_spawn({
+                    let diff_snapshot = diff_snapshot.clone();
                     let buffer_snapshot = buffer_snapshot.clone();
                     let new_diff_base = new_diff_base.clone();
                     async move {
@@ -434,6 +431,10 @@ impl ActionLog {
                     }
                 })
                 .await;
+
+            diff.update(cx, |diff, cx| {
+                diff.set_snapshot(diff_snapshot, &buffer_snapshot, cx);
+            })?;
         }
         this.update(cx, |this, cx| {
             let tracked_buffer = this
@@ -768,7 +769,7 @@ impl ActionLog {
                 tracked.version != buffer.version
                     && buffer
                         .file()
-                        .is_some_and(|file| !file.disk_state().is_deleted())
+                        .is_some_and(|file| file.disk_state() != DiskState::Deleted)
             })
             .map(|(buffer, _)| buffer)
     }
@@ -974,8 +975,7 @@ impl TrackedBuffer {
     fn has_edits(&self, cx: &App) -> bool {
         self.diff
             .read(cx)
-            .snapshot(cx)
-            .hunks(self.buffer.read(cx))
+            .hunks(self.buffer.read(cx), cx)
             .next()
             .is_some()
     }
@@ -2388,14 +2388,13 @@ mod tests {
                     (
                         buffer,
                         diff.read(cx)
-                            .snapshot(cx)
-                            .hunks(&snapshot)
+                            .hunks(&snapshot, cx)
                             .map(|hunk| HunkStatus {
                                 diff_status: hunk.status().kind,
                                 range: hunk.range,
                                 old_text: diff
                                     .read(cx)
-                                    .base_text(cx)
+                                    .base_text()
                                     .text_for_range(hunk.diff_base_byte_range)
                                     .collect(),
                             })

crates/agent/src/agent.rs

@@ -1167,6 +1167,10 @@ impl acp_thread::AgentModelSelector for NativeAgentModelSelector {
     fn should_render_footer(&self) -> bool {
         true
     }
+
+    fn supports_favorites(&self) -> bool {
+        true
+    }
 }
 
 impl acp_thread::AgentConnection for NativeAgentConnection {

crates/agent/src/native_agent_server.rs

@@ -1,14 +1,10 @@
 use std::{any::Any, path::Path, rc::Rc, sync::Arc};
 
-use agent_client_protocol as acp;
 use agent_servers::{AgentServer, AgentServerDelegate};
-use agent_settings::AgentSettings;
 use anyhow::Result;
-use collections::HashSet;
 use fs::Fs;
 use gpui::{App, Entity, SharedString, Task};
 use prompt_store::PromptStore;
-use settings::{LanguageModelSelection, Settings as _, update_settings_file};
 
 use crate::{HistoryStore, NativeAgent, NativeAgentConnection, templates::Templates};
 
@@ -75,38 +71,6 @@ impl AgentServer for NativeAgentServer {
     fn into_any(self: Rc<Self>) -> Rc<dyn Any> {
         self
     }
-
-    fn favorite_model_ids(&self, cx: &mut App) -> HashSet<acp::ModelId> {
-        AgentSettings::get_global(cx).favorite_model_ids()
-    }
-
-    fn toggle_favorite_model(
-        &self,
-        model_id: acp::ModelId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        let selection = model_id_to_selection(&model_id);
-        update_settings_file(fs, cx, move |settings, _| {
-            let agent = settings.agent.get_or_insert_default();
-            if should_be_favorite {
-                agent.add_favorite_model(selection.clone());
-            } else {
-                agent.remove_favorite_model(&selection);
-            }
-        });
-    }
-}
-
-/// Convert a ModelId (e.g. "anthropic/claude-3-5-sonnet") to a LanguageModelSelection.
-fn model_id_to_selection(model_id: &acp::ModelId) -> LanguageModelSelection {
-    let id = model_id.0.as_ref();
-    let (provider, model) = id.split_once('/').unwrap_or(("", id));
-    LanguageModelSelection {
-        provider: provider.to_owned().into(),
-        model: model.to_owned(),
-    }
 }
 
 #[cfg(test)]

crates/agent/src/tools/grep_tool.rs

@@ -5,7 +5,7 @@ use futures::StreamExt;
 use gpui::{App, Entity, SharedString, Task};
 use language::{OffsetRangeExt, ParseStatus, Point};
 use project::{
-    Project, SearchResults, WorktreeSettings,
+    Project, WorktreeSettings,
     search::{SearchQuery, SearchResult},
 };
 use schemars::JsonSchema;
@@ -176,17 +176,14 @@ impl AgentTool for GrepTool {
 
         let project = self.project.downgrade();
         cx.spawn(async move |cx|  {
-            // Keep the search alive for the duration of result iteration. Dropping this task is the
-            // cancellation mechanism; we intentionally do not detach it.
-            let SearchResults {rx, _task_handle}  = results;
-            futures::pin_mut!(rx);
+            futures::pin_mut!(results);
 
             let mut output = String::new();
             let mut skips_remaining = input.offset;
             let mut matches_found = 0;
             let mut has_more_matches = false;
 
-            'outer: while let Some(SearchResult::Buffer { buffer, ranges }) = rx.next().await {
+            'outer: while let Some(SearchResult::Buffer { buffer, ranges }) = results.next().await {
                 if ranges.is_empty() {
                     continue;
                 }

crates/agent_servers/Cargo.toml

@@ -21,7 +21,6 @@ acp_tools.workspace = true
 acp_thread.workspace = true
 action_log.workspace = true
 agent-client-protocol.workspace = true
-feature_flags.workspace = true
 anyhow.workspace = true
 async-trait.workspace = true
 client.workspace = true

crates/agent_servers/src/acp.rs

@@ -4,7 +4,6 @@ use action_log::ActionLog;
 use agent_client_protocol::{self as acp, Agent as _, ErrorCode};
 use anyhow::anyhow;
 use collections::HashMap;
-use feature_flags::{AcpBetaFeatureFlag, FeatureFlagAppExt as _};
 use futures::AsyncBufReadExt as _;
 use futures::io::BufReader;
 use project::Project;
@@ -13,10 +12,8 @@ use serde::Deserialize;
 use settings::Settings as _;
 use task::ShellBuilder;
 use util::ResultExt as _;
-use util::process::Child;
 
 use std::path::PathBuf;
-use std::process::Stdio;
 use std::{any::Any, cell::RefCell};
 use std::{path::Path, rc::Rc};
 use thiserror::Error;
@@ -41,37 +38,20 @@ pub struct AcpConnection {
     agent_capabilities: acp::AgentCapabilities,
     default_mode: Option<acp::SessionModeId>,
     default_model: Option<acp::ModelId>,
-    default_config_options: HashMap<String, String>,
     root_dir: PathBuf,
-    child: Child,
+    // NB: Don't move this into the wait_task, since we need to ensure the process is
+    // killed on drop (setting kill_on_drop on the command seems to not always work).
+    child: smol::process::Child,
     _io_task: Task<Result<(), acp::Error>>,
     _wait_task: Task<Result<()>>,
     _stderr_task: Task<Result<()>>,
 }
 
-struct ConfigOptions {
-    config_options: Rc<RefCell<Vec<acp::SessionConfigOption>>>,
-    tx: Rc<RefCell<watch::Sender<()>>>,
-    rx: watch::Receiver<()>,
-}
-
-impl ConfigOptions {
-    fn new(config_options: Rc<RefCell<Vec<acp::SessionConfigOption>>>) -> Self {
-        let (tx, rx) = watch::channel(());
-        Self {
-            config_options,
-            tx: Rc::new(RefCell::new(tx)),
-            rx,
-        }
-    }
-}
-
 pub struct AcpSession {
     thread: WeakEntity<AcpThread>,
     suppress_abort_err: bool,
     models: Option<Rc<RefCell<acp::SessionModelState>>>,
     session_modes: Option<Rc<RefCell<acp::SessionModeState>>>,
-    config_options: Option<ConfigOptions>,
 }
 
 pub async fn connect(
@@ -80,7 +60,6 @@ pub async fn connect(
     root_dir: &Path,
     default_mode: Option<acp::SessionModeId>,
     default_model: Option<acp::ModelId>,
-    default_config_options: HashMap<String, String>,
     is_remote: bool,
     cx: &mut AsyncApp,
 ) -> Result<Rc<dyn AgentConnection>> {
@@ -90,7 +69,6 @@ pub async fn connect(
         root_dir,
         default_mode,
         default_model,
-        default_config_options,
         is_remote,
         cx,
     )
@@ -107,19 +85,22 @@ impl AcpConnection {
         root_dir: &Path,
         default_mode: Option<acp::SessionModeId>,
         default_model: Option<acp::ModelId>,
-        default_config_options: HashMap<String, String>,
         is_remote: bool,
         cx: &mut AsyncApp,
     ) -> Result<Self> {
         let shell = cx.update(|cx| TerminalSettings::get(None, cx).shell.clone())?;
         let builder = ShellBuilder::new(&shell, cfg!(windows)).non_interactive();
         let mut child =
-            builder.build_std_command(Some(command.path.display().to_string()), &command.args);
-        child.envs(command.env.iter().flatten());
+            builder.build_command(Some(command.path.display().to_string()), &command.args);
+        child
+            .envs(command.env.iter().flatten())
+            .stdin(std::process::Stdio::piped())
+            .stdout(std::process::Stdio::piped())
+            .stderr(std::process::Stdio::piped());
         if !is_remote {
             child.current_dir(root_dir);
         }
-        let mut child = Child::spawn(child, Stdio::piped(), Stdio::piped(), Stdio::piped())?;
+        let mut child = child.spawn()?;
 
         let stdout = child.stdout.take().context("Failed to take stdout")?;
         let stdin = child.stdin.take().context("Failed to take stdin")?;
@@ -236,7 +217,6 @@ impl AcpConnection {
             agent_capabilities: response.agent_capabilities,
             default_mode,
             default_model,
-            default_config_options,
             _io_task: io_task,
             _wait_task: wait_task,
             _stderr_task: stderr_task,
@@ -255,6 +235,7 @@ impl AcpConnection {
 
 impl Drop for AcpConnection {
     fn drop(&mut self) {
+        // See the comment on the child field.
         self.child.kill().log_err();
     }
 }
@@ -275,7 +256,6 @@ impl AgentConnection for AcpConnection {
         let sessions = self.sessions.clone();
         let default_mode = self.default_mode.clone();
         let default_model = self.default_model.clone();
-        let default_config_options = self.default_config_options.clone();
         let cwd = cwd.to_path_buf();
         let context_server_store = project.read(cx).context_server_store().read(cx);
         let mcp_servers = if project.read(cx).is_local() {
@@ -342,21 +322,8 @@ impl AgentConnection for AcpConnection {
                     }
                 })?;
 
-            let use_config_options = cx.update(|cx| cx.has_flag::<AcpBetaFeatureFlag>())?;
-
-            // Config options take precedence over legacy modes/models
-            let (modes, models, config_options) = if use_config_options && let Some(opts) = response.config_options {
-                (
-                    None,
-                    None,
-                    Some(Rc::new(RefCell::new(opts))),
-                )
-            } else {
-                // Fall back to legacy modes/models
-                let modes = response.modes.map(|modes| Rc::new(RefCell::new(modes)));
-                let models = response.models.map(|models| Rc::new(RefCell::new(models)));
-                (modes, models, None)
-            };
+            let modes = response.modes.map(|modes| Rc::new(RefCell::new(modes)));
+            let models = response.models.map(|models| Rc::new(RefCell::new(models)));
 
             if let Some(default_mode) = default_mode {
                 if let Some(modes) = modes.as_ref() {
@@ -444,92 +411,6 @@ impl AgentConnection for AcpConnection {
                 }
             }
 
-            if let Some(config_opts) = config_options.as_ref() {
-                let defaults_to_apply: Vec<_> = {
-                    let config_opts_ref = config_opts.borrow();
-                    config_opts_ref
-                        .iter()
-                        .filter_map(|config_option| {
-                            let default_value = default_config_options.get(&*config_option.id.0)?;
-
-                            let is_valid = match &config_option.kind {
-                                acp::SessionConfigKind::Select(select) => match &select.options {
-                                    acp::SessionConfigSelectOptions::Ungrouped(options) => {
-                                        options.iter().any(|opt| &*opt.value.0 == default_value.as_str())
-                                    }
-                                    acp::SessionConfigSelectOptions::Grouped(groups) => groups
-                                        .iter()
-                                        .any(|g| g.options.iter().any(|opt| &*opt.value.0 == default_value.as_str())),
-                                    _ => false,
-                                },
-                                _ => false,
-                            };
-
-                            if is_valid {
-                                let initial_value = match &config_option.kind {
-                                    acp::SessionConfigKind::Select(select) => {
-                                        Some(select.current_value.clone())
-                                    }
-                                    _ => None,
-                                };
-                                Some((config_option.id.clone(), default_value.clone(), initial_value))
-                            } else {
-                                log::warn!(
-                                    "`{}` is not a valid value for config option `{}` in {}",
-                                    default_value,
-                                    config_option.id.0,
-                                    name
-                                );
-                                None
-                            }
-                        })
-                        .collect()
-                };
-
-                for (config_id, default_value, initial_value) in defaults_to_apply {
-                    cx.spawn({
-                        let default_value_id = acp::SessionConfigValueId::new(default_value.clone());
-                        let session_id = response.session_id.clone();
-                        let config_id_clone = config_id.clone();
-                        let config_opts = config_opts.clone();
-                        let conn = conn.clone();
-                        async move |_| {
-                            let result = conn
-                                .set_session_config_option(
-                                    acp::SetSessionConfigOptionRequest::new(
-                                        session_id,
-                                        config_id_clone.clone(),
-                                        default_value_id,
-                                    ),
-                                )
-                                .await
-                                .log_err();
-
-                            if result.is_none() {
-                                if let Some(initial) = initial_value {
-                                    let mut opts = config_opts.borrow_mut();
-                                    if let Some(opt) = opts.iter_mut().find(|o| o.id == config_id_clone) {
-                                        if let acp::SessionConfigKind::Select(select) =
-                                            &mut opt.kind
-                                        {
-                                            select.current_value = initial;
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    })
-                    .detach();
-
-                    let mut opts = config_opts.borrow_mut();
-                    if let Some(opt) = opts.iter_mut().find(|o| o.id == config_id) {
-                        if let acp::SessionConfigKind::Select(select) = &mut opt.kind {
-                            select.current_value = acp::SessionConfigValueId::new(default_value);
-                        }
-                    }
-                }
-            }
-
             let session_id = response.session_id;
             let action_log = cx.new(|_| ActionLog::new(project.clone()))?;
             let thread = cx.new(|cx| {
@@ -551,7 +432,6 @@ impl AgentConnection for AcpConnection {
                 suppress_abort_err: false,
                 session_modes: modes,
                 models,
-                config_options: config_options.map(|opts| ConfigOptions::new(opts))
             };
             sessions.borrow_mut().insert(session_id, session);
 
@@ -687,25 +567,6 @@ impl AgentConnection for AcpConnection {
         }
     }
 
-    fn session_config_options(
-        &self,
-        session_id: &acp::SessionId,
-        _cx: &App,
-    ) -> Option<Rc<dyn acp_thread::AgentSessionConfigOptions>> {
-        let sessions = self.sessions.borrow();
-        let session = sessions.get(session_id)?;
-
-        let config_opts = session.config_options.as_ref()?;
-
-        Some(Rc::new(AcpSessionConfigOptions {
-            session_id: session_id.clone(),
-            connection: self.connection.clone(),
-            state: config_opts.config_options.clone(),
-            watch_tx: config_opts.tx.clone(),
-            watch_rx: config_opts.rx.clone(),
-        }) as _)
-    }
-
     fn into_any(self: Rc<Self>) -> Rc<dyn Any> {
         self
     }
@@ -824,49 +685,6 @@ impl acp_thread::AgentModelSelector for AcpModelSelector {
     }
 }
 
-struct AcpSessionConfigOptions {
-    session_id: acp::SessionId,
-    connection: Rc<acp::ClientSideConnection>,
-    state: Rc<RefCell<Vec<acp::SessionConfigOption>>>,
-    watch_tx: Rc<RefCell<watch::Sender<()>>>,
-    watch_rx: watch::Receiver<()>,
-}
-
-impl acp_thread::AgentSessionConfigOptions for AcpSessionConfigOptions {
-    fn config_options(&self) -> Vec<acp::SessionConfigOption> {
-        self.state.borrow().clone()
-    }
-
-    fn set_config_option(
-        &self,
-        config_id: acp::SessionConfigId,
-        value: acp::SessionConfigValueId,
-        cx: &mut App,
-    ) -> Task<Result<Vec<acp::SessionConfigOption>>> {
-        let connection = self.connection.clone();
-        let session_id = self.session_id.clone();
-        let state = self.state.clone();
-
-        let watch_tx = self.watch_tx.clone();
-
-        cx.foreground_executor().spawn(async move {
-            let response = connection
-                .set_session_config_option(acp::SetSessionConfigOptionRequest::new(
-                    session_id, config_id, value,
-                ))
-                .await?;
-
-            *state.borrow_mut() = response.config_options.clone();
-            watch_tx.borrow_mut().send(()).ok();
-            Ok(response.config_options)
-        })
-    }
-
-    fn watch(&self, _cx: &mut App) -> Option<watch::Receiver<()>> {
-        Some(self.watch_rx.clone())
-    }
-}
-
 struct ClientDelegate {
     sessions: Rc<RefCell<HashMap<acp::SessionId, AcpSession>>>,
     cx: AsyncApp,
@@ -960,21 +778,6 @@ impl acp::Client for ClientDelegate {
             }
         }
 
-        if let acp::SessionUpdate::ConfigOptionUpdate(acp::ConfigOptionUpdate {
-            config_options,
-            ..
-        }) = &notification.update
-        {
-            if let Some(opts) = &session.config_options {
-                *opts.config_options.borrow_mut() = config_options.clone();
-                opts.tx.borrow_mut().send(()).ok();
-            } else {
-                log::error!(
-                    "Got a `ConfigOptionUpdate` notification, but the agent didn't specify `config_options` during session setup."
-                );
-            }
-        }
-
         // Clone so we can inspect meta both before and after handing off to the thread
         let update_clone = notification.update.clone();
 

crates/agent_servers/src/agent_servers.rs

@@ -10,7 +10,7 @@ pub mod e2e_tests;
 pub use claude::*;
 use client::ProxySettings;
 pub use codex::*;
-use collections::{HashMap, HashSet};
+use collections::HashMap;
 pub use custom::*;
 use fs::Fs;
 pub use gemini::*;
@@ -56,19 +56,9 @@ impl AgentServerDelegate {
 pub trait AgentServer: Send {
     fn logo(&self) -> ui::IconName;
     fn name(&self) -> SharedString;
-    fn connect(
-        &self,
-        root_dir: Option<&Path>,
-        delegate: AgentServerDelegate,
-        cx: &mut App,
-    ) -> Task<Result<(Rc<dyn AgentConnection>, Option<task::SpawnInTerminal>)>>;
-
-    fn into_any(self: Rc<Self>) -> Rc<dyn Any>;
-
-    fn default_mode(&self, _cx: &App) -> Option<agent_client_protocol::SessionModeId> {
+    fn default_mode(&self, _cx: &mut App) -> Option<agent_client_protocol::SessionModeId> {
         None
     }
-
     fn set_default_mode(
         &self,
         _mode_id: Option<agent_client_protocol::SessionModeId>,
@@ -77,7 +67,7 @@ pub trait AgentServer: Send {
     ) {
     }
 
-    fn default_model(&self, _cx: &App) -> Option<agent_client_protocol::ModelId> {
+    fn default_model(&self, _cx: &mut App) -> Option<agent_client_protocol::ModelId> {
         None
     }
 
@@ -89,49 +79,14 @@ pub trait AgentServer: Send {
     ) {
     }
 
-    fn favorite_model_ids(&self, _cx: &mut App) -> HashSet<agent_client_protocol::ModelId> {
-        HashSet::default()
-    }
-
-    fn default_config_option(&self, _config_id: &str, _cx: &App) -> Option<String> {
-        None
-    }
-
-    fn set_default_config_option(
+    fn connect(
         &self,
-        _config_id: &str,
-        _value_id: Option<&str>,
-        _fs: Arc<dyn Fs>,
-        _cx: &mut App,
-    ) {
-    }
+        root_dir: Option<&Path>,
+        delegate: AgentServerDelegate,
+        cx: &mut App,
+    ) -> Task<Result<(Rc<dyn AgentConnection>, Option<task::SpawnInTerminal>)>>;
 
-    fn favorite_config_option_value_ids(
-        &self,
-        _config_id: &agent_client_protocol::SessionConfigId,
-        _cx: &mut App,
-    ) -> HashSet<agent_client_protocol::SessionConfigValueId> {
-        HashSet::default()
-    }
-
-    fn toggle_favorite_config_option_value(
-        &self,
-        _config_id: agent_client_protocol::SessionConfigId,
-        _value_id: agent_client_protocol::SessionConfigValueId,
-        _should_be_favorite: bool,
-        _fs: Arc<dyn Fs>,
-        _cx: &App,
-    ) {
-    }
-
-    fn toggle_favorite_model(
-        &self,
-        _model_id: agent_client_protocol::ModelId,
-        _should_be_favorite: bool,
-        _fs: Arc<dyn Fs>,
-        _cx: &App,
-    ) {
-    }
+    fn into_any(self: Rc<Self>) -> Rc<dyn Any>;
 }
 
 impl dyn AgentServer {

crates/agent_servers/src/claude.rs

@@ -1,5 +1,4 @@
 use agent_client_protocol as acp;
-use collections::HashSet;
 use fs::Fs;
 use settings::{SettingsStore, update_settings_file};
 use std::path::Path;
@@ -31,7 +30,7 @@ impl AgentServer for ClaudeCode {
         ui::IconName::AiClaude
     }
 
-    fn default_mode(&self, cx: &App) -> Option<acp::SessionModeId> {
+    fn default_mode(&self, cx: &mut App) -> Option<acp::SessionModeId> {
         let settings = cx.read_global(|settings: &SettingsStore, _| {
             settings.get::<AllAgentServersSettings>(None).claude.clone()
         });
@@ -52,7 +51,7 @@ impl AgentServer for ClaudeCode {
         });
     }
 
-    fn default_model(&self, cx: &App) -> Option<acp::ModelId> {
+    fn default_model(&self, cx: &mut App) -> Option<acp::ModelId> {
         let settings = cx.read_global(|settings: &SettingsStore, _| {
             settings.get::<AllAgentServersSettings>(None).claude.clone()
         });
@@ -73,139 +72,6 @@ impl AgentServer for ClaudeCode {
         });
     }
 
-    fn favorite_model_ids(&self, cx: &mut App) -> HashSet<acp::ModelId> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings.get::<AllAgentServersSettings>(None).claude.clone()
-        });
-
-        settings
-            .as_ref()
-            .map(|s| {
-                s.favorite_models
-                    .iter()
-                    .map(|id| acp::ModelId::new(id.clone()))
-                    .collect()
-            })
-            .unwrap_or_default()
-    }
-
-    fn toggle_favorite_model(
-        &self,
-        model_id: acp::ModelId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        update_settings_file(fs, cx, move |settings, _| {
-            let favorite_models = &mut settings
-                .agent_servers
-                .get_or_insert_default()
-                .claude
-                .get_or_insert_default()
-                .favorite_models;
-
-            let model_id_str = model_id.to_string();
-            if should_be_favorite {
-                if !favorite_models.contains(&model_id_str) {
-                    favorite_models.push(model_id_str);
-                }
-            } else {
-                favorite_models.retain(|id| id != &model_id_str);
-            }
-        });
-    }
-
-    fn default_config_option(&self, config_id: &str, cx: &App) -> Option<String> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings.get::<AllAgentServersSettings>(None).claude.clone()
-        });
-
-        settings
-            .as_ref()
-            .and_then(|s| s.default_config_options.get(config_id).cloned())
-    }
-
-    fn set_default_config_option(
-        &self,
-        config_id: &str,
-        value_id: Option<&str>,
-        fs: Arc<dyn Fs>,
-        cx: &mut App,
-    ) {
-        let config_id = config_id.to_string();
-        let value_id = value_id.map(|s| s.to_string());
-        update_settings_file(fs, cx, move |settings, _| {
-            let config_options = &mut settings
-                .agent_servers
-                .get_or_insert_default()
-                .claude
-                .get_or_insert_default()
-                .default_config_options;
-
-            if let Some(value) = value_id.clone() {
-                config_options.insert(config_id.clone(), value);
-            } else {
-                config_options.remove(&config_id);
-            }
-        });
-    }
-
-    fn favorite_config_option_value_ids(
-        &self,
-        config_id: &acp::SessionConfigId,
-        cx: &mut App,
-    ) -> HashSet<acp::SessionConfigValueId> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings.get::<AllAgentServersSettings>(None).claude.clone()
-        });
-
-        settings
-            .as_ref()
-            .and_then(|s| s.favorite_config_option_values.get(config_id.0.as_ref()))
-            .map(|values| {
-                values
-                    .iter()
-                    .cloned()
-                    .map(acp::SessionConfigValueId::new)
-                    .collect()
-            })
-            .unwrap_or_default()
-    }
-
-    fn toggle_favorite_config_option_value(
-        &self,
-        config_id: acp::SessionConfigId,
-        value_id: acp::SessionConfigValueId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        let config_id = config_id.to_string();
-        let value_id = value_id.to_string();
-
-        update_settings_file(fs, cx, move |settings, _| {
-            let favorites = &mut settings
-                .agent_servers
-                .get_or_insert_default()
-                .claude
-                .get_or_insert_default()
-                .favorite_config_option_values;
-
-            let entry = favorites.entry(config_id.clone()).or_insert_with(Vec::new);
-
-            if should_be_favorite {
-                if !entry.iter().any(|v| v == &value_id) {
-                    entry.push(value_id.clone());
-                }
-            } else {
-                entry.retain(|v| v != &value_id);
-                if entry.is_empty() {
-                    favorites.remove(&config_id);
-                }
-            }
-        });
-    }
-
     fn connect(
         &self,
         root_dir: Option<&Path>,
@@ -219,14 +85,6 @@ impl AgentServer for ClaudeCode {
         let extra_env = load_proxy_env(cx);
         let default_mode = self.default_mode(cx);
         let default_model = self.default_model(cx);
-        let default_config_options = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .claude
-                .as_ref()
-                .map(|s| s.default_config_options.clone())
-                .unwrap_or_default()
-        });
 
         cx.spawn(async move |cx| {
             let (command, root_dir, login) = store
@@ -249,7 +107,6 @@ impl AgentServer for ClaudeCode {
                 root_dir.as_ref(),
                 default_mode,
                 default_model,
-                default_config_options,
                 is_remote,
                 cx,
             )

crates/agent_servers/src/codex.rs

@@ -5,7 +5,6 @@ use std::{any::Any, path::Path};
 use acp_thread::AgentConnection;
 use agent_client_protocol as acp;
 use anyhow::{Context as _, Result};
-use collections::HashSet;
 use fs::Fs;
 use gpui::{App, AppContext as _, SharedString, Task};
 use project::agent_server_store::{AllAgentServersSettings, CODEX_NAME};
@@ -32,7 +31,7 @@ impl AgentServer for Codex {
         ui::IconName::AiOpenAi
     }
 
-    fn default_mode(&self, cx: &App) -> Option<acp::SessionModeId> {
+    fn default_mode(&self, cx: &mut App) -> Option<acp::SessionModeId> {
         let settings = cx.read_global(|settings: &SettingsStore, _| {
             settings.get::<AllAgentServersSettings>(None).codex.clone()
         });
@@ -53,7 +52,7 @@ impl AgentServer for Codex {
         });
     }
 
-    fn default_model(&self, cx: &App) -> Option<acp::ModelId> {
+    fn default_model(&self, cx: &mut App) -> Option<acp::ModelId> {
         let settings = cx.read_global(|settings: &SettingsStore, _| {
             settings.get::<AllAgentServersSettings>(None).codex.clone()
         });
@@ -74,139 +73,6 @@ impl AgentServer for Codex {
         });
     }
 
-    fn favorite_model_ids(&self, cx: &mut App) -> HashSet<acp::ModelId> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings.get::<AllAgentServersSettings>(None).codex.clone()
-        });
-
-        settings
-            .as_ref()
-            .map(|s| {
-                s.favorite_models
-                    .iter()
-                    .map(|id| acp::ModelId::new(id.clone()))
-                    .collect()
-            })
-            .unwrap_or_default()
-    }
-
-    fn toggle_favorite_model(
-        &self,
-        model_id: acp::ModelId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        update_settings_file(fs, cx, move |settings, _| {
-            let favorite_models = &mut settings
-                .agent_servers
-                .get_or_insert_default()
-                .codex
-                .get_or_insert_default()
-                .favorite_models;
-
-            let model_id_str = model_id.to_string();
-            if should_be_favorite {
-                if !favorite_models.contains(&model_id_str) {
-                    favorite_models.push(model_id_str);
-                }
-            } else {
-                favorite_models.retain(|id| id != &model_id_str);
-            }
-        });
-    }
-
-    fn default_config_option(&self, config_id: &str, cx: &App) -> Option<String> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings.get::<AllAgentServersSettings>(None).codex.clone()
-        });
-
-        settings
-            .as_ref()
-            .and_then(|s| s.default_config_options.get(config_id).cloned())
-    }
-
-    fn set_default_config_option(
-        &self,
-        config_id: &str,
-        value_id: Option<&str>,
-        fs: Arc<dyn Fs>,
-        cx: &mut App,
-    ) {
-        let config_id = config_id.to_string();
-        let value_id = value_id.map(|s| s.to_string());
-        update_settings_file(fs, cx, move |settings, _| {
-            let config_options = &mut settings
-                .agent_servers
-                .get_or_insert_default()
-                .codex
-                .get_or_insert_default()
-                .default_config_options;
-
-            if let Some(value) = value_id.clone() {
-                config_options.insert(config_id.clone(), value);
-            } else {
-                config_options.remove(&config_id);
-            }
-        });
-    }
-
-    fn favorite_config_option_value_ids(
-        &self,
-        config_id: &acp::SessionConfigId,
-        cx: &mut App,
-    ) -> HashSet<acp::SessionConfigValueId> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings.get::<AllAgentServersSettings>(None).codex.clone()
-        });
-
-        settings
-            .as_ref()
-            .and_then(|s| s.favorite_config_option_values.get(config_id.0.as_ref()))
-            .map(|values| {
-                values
-                    .iter()
-                    .cloned()
-                    .map(acp::SessionConfigValueId::new)
-                    .collect()
-            })
-            .unwrap_or_default()
-    }
-
-    fn toggle_favorite_config_option_value(
-        &self,
-        config_id: acp::SessionConfigId,
-        value_id: acp::SessionConfigValueId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        let config_id = config_id.to_string();
-        let value_id = value_id.to_string();
-
-        update_settings_file(fs, cx, move |settings, _| {
-            let favorites = &mut settings
-                .agent_servers
-                .get_or_insert_default()
-                .codex
-                .get_or_insert_default()
-                .favorite_config_option_values;
-
-            let entry = favorites.entry(config_id.clone()).or_insert_with(Vec::new);
-
-            if should_be_favorite {
-                if !entry.iter().any(|v| v == &value_id) {
-                    entry.push(value_id.clone());
-                }
-            } else {
-                entry.retain(|v| v != &value_id);
-                if entry.is_empty() {
-                    favorites.remove(&config_id);
-                }
-            }
-        });
-    }
-
     fn connect(
         &self,
         root_dir: Option<&Path>,
@@ -220,14 +86,6 @@ impl AgentServer for Codex {
         let extra_env = load_proxy_env(cx);
         let default_mode = self.default_mode(cx);
         let default_model = self.default_model(cx);
-        let default_config_options = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .codex
-                .as_ref()
-                .map(|s| s.default_config_options.clone())
-                .unwrap_or_default()
-        });
 
         cx.spawn(async move |cx| {
             let (command, root_dir, login) = store
@@ -251,7 +109,6 @@ impl AgentServer for Codex {
                 root_dir.as_ref(),
                 default_mode,
                 default_model,
-                default_config_options,
                 is_remote,
                 cx,
             )

crates/agent_servers/src/custom.rs

@@ -2,7 +2,6 @@ use crate::{AgentServer, AgentServerDelegate, load_proxy_env};
 use acp_thread::AgentConnection;
 use agent_client_protocol as acp;
 use anyhow::{Context as _, Result};
-use collections::HashSet;
 use fs::Fs;
 use gpui::{App, AppContext as _, SharedString, Task};
 use project::agent_server_store::{AllAgentServersSettings, ExternalAgentServerName};
@@ -30,7 +29,7 @@ impl AgentServer for CustomAgentServer {
         IconName::Terminal
     }
 
-    fn default_mode(&self, cx: &App) -> Option<acp::SessionModeId> {
+    fn default_mode(&self, cx: &mut App) -> Option<acp::SessionModeId> {
         let settings = cx.read_global(|settings: &SettingsStore, _| {
             settings
                 .get::<AllAgentServersSettings>(None)
@@ -44,86 +43,6 @@ impl AgentServer for CustomAgentServer {
             .and_then(|s| s.default_mode().map(acp::SessionModeId::new))
     }
 
-    fn favorite_config_option_value_ids(
-        &self,
-        config_id: &acp::SessionConfigId,
-        cx: &mut App,
-    ) -> HashSet<acp::SessionConfigValueId> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .custom
-                .get(&self.name())
-                .cloned()
-        });
-
-        settings
-            .as_ref()
-            .and_then(|s| s.favorite_config_option_values(config_id.0.as_ref()))
-            .map(|values| {
-                values
-                    .iter()
-                    .cloned()
-                    .map(acp::SessionConfigValueId::new)
-                    .collect()
-            })
-            .unwrap_or_default()
-    }
-
-    fn toggle_favorite_config_option_value(
-        &self,
-        config_id: acp::SessionConfigId,
-        value_id: acp::SessionConfigValueId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        let name = self.name();
-        let config_id = config_id.to_string();
-        let value_id = value_id.to_string();
-
-        update_settings_file(fs, cx, move |settings, _| {
-            let settings = settings
-                .agent_servers
-                .get_or_insert_default()
-                .custom
-                .entry(name.clone())
-                .or_insert_with(|| settings::CustomAgentServerSettings::Extension {
-                    default_model: None,
-                    default_mode: None,
-                    favorite_models: Vec::new(),
-                    default_config_options: Default::default(),
-                    favorite_config_option_values: Default::default(),
-                });
-
-            match settings {
-                settings::CustomAgentServerSettings::Custom {
-                    favorite_config_option_values,
-                    ..
-                }
-                | settings::CustomAgentServerSettings::Extension {
-                    favorite_config_option_values,
-                    ..
-                } => {
-                    let entry = favorite_config_option_values
-                        .entry(config_id.clone())
-                        .or_insert_with(Vec::new);
-
-                    if should_be_favorite {
-                        if !entry.iter().any(|v| v == &value_id) {
-                            entry.push(value_id.clone());
-                        }
-                    } else {
-                        entry.retain(|v| v != &value_id);
-                        if entry.is_empty() {
-                            favorite_config_option_values.remove(&config_id);
-                        }
-                    }
-                }
-            }
-        });
-    }
-
     fn set_default_mode(&self, mode_id: Option<acp::SessionModeId>, fs: Arc<dyn Fs>, cx: &mut App) {
         let name = self.name();
         update_settings_file(fs, cx, move |settings, _| {
@@ -135,9 +54,6 @@ impl AgentServer for CustomAgentServer {
                 .or_insert_with(|| settings::CustomAgentServerSettings::Extension {
                     default_model: None,
                     default_mode: None,
-                    favorite_models: Vec::new(),
-                    default_config_options: Default::default(),
-                    favorite_config_option_values: Default::default(),
                 });
 
             match settings {
@@ -149,7 +65,7 @@ impl AgentServer for CustomAgentServer {
         });
     }
 
-    fn default_model(&self, cx: &App) -> Option<acp::ModelId> {
+    fn default_model(&self, cx: &mut App) -> Option<acp::ModelId> {
         let settings = cx.read_global(|settings: &SettingsStore, _| {
             settings
                 .get::<AllAgentServersSettings>(None)
@@ -174,9 +90,6 @@ impl AgentServer for CustomAgentServer {
                 .or_insert_with(|| settings::CustomAgentServerSettings::Extension {
                     default_model: None,
                     default_mode: None,
-                    favorite_models: Vec::new(),
-                    default_config_options: Default::default(),
-                    favorite_config_option_values: Default::default(),
                 });
 
             match settings {
@@ -188,125 +101,6 @@ impl AgentServer for CustomAgentServer {
         });
     }
 
-    fn favorite_model_ids(&self, cx: &mut App) -> HashSet<acp::ModelId> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .custom
-                .get(&self.name())
-                .cloned()
-        });
-
-        settings
-            .as_ref()
-            .map(|s| {
-                s.favorite_models()
-                    .iter()
-                    .map(|id| acp::ModelId::new(id.clone()))
-                    .collect()
-            })
-            .unwrap_or_default()
-    }
-
-    fn toggle_favorite_model(
-        &self,
-        model_id: acp::ModelId,
-        should_be_favorite: bool,
-        fs: Arc<dyn Fs>,
-        cx: &App,
-    ) {
-        let name = self.name();
-        update_settings_file(fs, cx, move |settings, _| {
-            let settings = settings
-                .agent_servers
-                .get_or_insert_default()
-                .custom
-                .entry(name.clone())
-                .or_insert_with(|| settings::CustomAgentServerSettings::Extension {
-                    default_model: None,
-                    default_mode: None,
-                    favorite_models: Vec::new(),
-                    default_config_options: Default::default(),
-                    favorite_config_option_values: Default::default(),
-                });
-
-            let favorite_models = match settings {
-                settings::CustomAgentServerSettings::Custom {
-                    favorite_models, ..
-                }
-                | settings::CustomAgentServerSettings::Extension {
-                    favorite_models, ..
-                } => favorite_models,
-            };
-
-            let model_id_str = model_id.to_string();
-            if should_be_favorite {
-                if !favorite_models.contains(&model_id_str) {
-                    favorite_models.push(model_id_str);
-                }
-            } else {
-                favorite_models.retain(|id| id != &model_id_str);
-            }
-        });
-    }
-
-    fn default_config_option(&self, config_id: &str, cx: &App) -> Option<String> {
-        let settings = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .custom
-                .get(&self.name())
-                .cloned()
-        });
-
-        settings
-            .as_ref()
-            .and_then(|s| s.default_config_option(config_id).map(|s| s.to_string()))
-    }
-
-    fn set_default_config_option(
-        &self,
-        config_id: &str,
-        value_id: Option<&str>,
-        fs: Arc<dyn Fs>,
-        cx: &mut App,
-    ) {
-        let name = self.name();
-        let config_id = config_id.to_string();
-        let value_id = value_id.map(|s| s.to_string());
-        update_settings_file(fs, cx, move |settings, _| {
-            let settings = settings
-                .agent_servers
-                .get_or_insert_default()
-                .custom
-                .entry(name.clone())
-                .or_insert_with(|| settings::CustomAgentServerSettings::Extension {
-                    default_model: None,
-                    default_mode: None,
-                    favorite_models: Vec::new(),
-                    default_config_options: Default::default(),
-                    favorite_config_option_values: Default::default(),
-                });
-
-            match settings {
-                settings::CustomAgentServerSettings::Custom {
-                    default_config_options,
-                    ..
-                }
-                | settings::CustomAgentServerSettings::Extension {
-                    default_config_options,
-                    ..
-                } => {
-                    if let Some(value) = value_id.clone() {
-                        default_config_options.insert(config_id.clone(), value);
-                    } else {
-                        default_config_options.remove(&config_id);
-                    }
-                }
-            }
-        });
-    }
-
     fn connect(
         &self,
         root_dir: Option<&Path>,
@@ -318,23 +112,6 @@ impl AgentServer for CustomAgentServer {
         let is_remote = delegate.project.read(cx).is_via_remote_server();
         let default_mode = self.default_mode(cx);
         let default_model = self.default_model(cx);
-        let default_config_options = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .custom
-                .get(&self.name())
-                .map(|s| match s {
-                    project::agent_server_store::CustomAgentServerSettings::Custom {
-                        default_config_options,
-                        ..
-                    }
-                    | project::agent_server_store::CustomAgentServerSettings::Extension {
-                        default_config_options,
-                        ..
-                    } => default_config_options.clone(),
-                })
-                .unwrap_or_default()
-        });
         let store = delegate.store.downgrade();
         let extra_env = load_proxy_env(cx);
         cx.spawn(async move |cx| {
@@ -360,7 +137,6 @@ impl AgentServer for CustomAgentServer {
                 root_dir.as_ref(),
                 default_mode,
                 default_model,
-                default_config_options,
                 is_remote,
                 cx,
             )

crates/agent_servers/src/e2e_tests.rs

@@ -455,12 +455,20 @@ pub async fn init_test(cx: &mut TestAppContext) -> Arc<FakeFs> {
             project::agent_server_store::AllAgentServersSettings {
                 claude: Some(BuiltinAgentServerSettings {
                     path: Some("claude-code-acp".into()),
-                    ..Default::default()
+                    args: None,
+                    env: None,
+                    ignore_system_version: None,
+                    default_mode: None,
+                    default_model: None,
                 }),
                 gemini: Some(crate::gemini::tests::local_command().into()),
                 codex: Some(BuiltinAgentServerSettings {
                     path: Some("codex-acp".into()),
-                    ..Default::default()
+                    args: None,
+                    env: None,
+                    ignore_system_version: None,
+                    default_mode: None,
+                    default_model: None,
                 }),
                 custom: collections::HashMap::default(),
             },

crates/agent_servers/src/gemini.rs

@@ -4,10 +4,9 @@ use std::{any::Any, path::Path};
 use crate::{AgentServer, AgentServerDelegate, load_proxy_env};
 use acp_thread::AgentConnection;
 use anyhow::{Context as _, Result};
-use gpui::{App, AppContext as _, SharedString, Task};
+use gpui::{App, SharedString, Task};
 use language_models::provider::google::GoogleLanguageModelProvider;
-use project::agent_server_store::{AllAgentServersSettings, GEMINI_NAME};
-use settings::SettingsStore;
+use project::agent_server_store::GEMINI_NAME;
 
 #[derive(Clone)]
 pub struct Gemini;
@@ -34,14 +33,6 @@ impl AgentServer for Gemini {
         let mut extra_env = load_proxy_env(cx);
         let default_mode = self.default_mode(cx);
         let default_model = self.default_model(cx);
-        let default_config_options = cx.read_global(|settings: &SettingsStore, _| {
-            settings
-                .get::<AllAgentServersSettings>(None)
-                .gemini
-                .as_ref()
-                .map(|s| s.default_config_options.clone())
-                .unwrap_or_default()
-        });
 
         cx.spawn(async move |cx| {
             extra_env.insert("SURFACE".to_owned(), "zed".to_owned());
@@ -74,7 +65,6 @@ impl AgentServer for Gemini {
                 root_dir.as_ref(),
                 default_mode,
                 default_model,
-                default_config_options,
                 is_remote,
                 cx,
             )

crates/agent_ui/src/acp.rs

@@ -1,4 +1,3 @@
-mod config_options;
 mod entry_view_state;
 mod message_editor;
 mod mode_selector;

crates/agent_ui/src/acp/config_options.rs

@@ -1,775 +0,0 @@
-use std::{cmp::Reverse, rc::Rc, sync::Arc};
-
-use acp_thread::AgentSessionConfigOptions;
-use agent_client_protocol as acp;
-use agent_servers::AgentServer;
-use collections::HashSet;
-use fs::Fs;
-use fuzzy::StringMatchCandidate;
-use gpui::{
-    BackgroundExecutor, Context, DismissEvent, Entity, Subscription, Task, Window, prelude::*,
-};
-use ordered_float::OrderedFloat;
-use picker::popover_menu::PickerPopoverMenu;
-use picker::{Picker, PickerDelegate};
-use settings::SettingsStore;
-use ui::{
-    ElevationIndex, IconButton, ListItem, ListItemSpacing, PopoverMenuHandle, Tooltip, prelude::*,
-};
-use util::ResultExt as _;
-
-use crate::ui::HoldForDefault;
-
-const PICKER_THRESHOLD: usize = 5;
-
-pub struct ConfigOptionsView {
-    config_options: Rc<dyn AgentSessionConfigOptions>,
-    selectors: Vec<Entity<ConfigOptionSelector>>,
-    agent_server: Rc<dyn AgentServer>,
-    fs: Arc<dyn Fs>,
-    config_option_ids: Vec<acp::SessionConfigId>,
-    _refresh_task: Task<()>,
-}
-
-impl ConfigOptionsView {
-    pub fn new(
-        config_options: Rc<dyn AgentSessionConfigOptions>,
-        agent_server: Rc<dyn AgentServer>,
-        fs: Arc<dyn Fs>,
-        window: &mut Window,
-        cx: &mut Context<Self>,
-    ) -> Self {
-        let selectors = Self::build_selectors(&config_options, &agent_server, &fs, window, cx);
-        let config_option_ids = Self::config_option_ids(&config_options);
-
-        let rx = config_options.watch(cx);
-        let refresh_task = cx.spawn_in(window, async move |this, cx| {
-            if let Some(mut rx) = rx {
-                while let Ok(()) = rx.recv().await {
-                    this.update_in(cx, |this, window, cx| {
-                        this.refresh_selectors_if_needed(window, cx);
-                        cx.notify();
-                    })
-                    .log_err();
-                }
-            }
-        });
-
-        Self {
-            config_options,
-            selectors,
-            agent_server,
-            fs,
-            config_option_ids,
-            _refresh_task: refresh_task,
-        }
-    }
-
-    fn config_option_ids(
-        config_options: &Rc<dyn AgentSessionConfigOptions>,
-    ) -> Vec<acp::SessionConfigId> {
-        config_options
-            .config_options()
-            .into_iter()
-            .map(|option| option.id)
-            .collect()
-    }
-
-    fn refresh_selectors_if_needed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
-        let current_ids = Self::config_option_ids(&self.config_options);
-        if current_ids != self.config_option_ids {
-            self.config_option_ids = current_ids;
-            self.rebuild_selectors(window, cx);
-        }
-    }
-
-    fn rebuild_selectors(&mut self, window: &mut Window, cx: &mut Context<Self>) {
-        self.selectors = Self::build_selectors(
-            &self.config_options,
-            &self.agent_server,
-            &self.fs,
-            window,
-            cx,
-        );
-        cx.notify();
-    }
-
-    fn build_selectors(
-        config_options: &Rc<dyn AgentSessionConfigOptions>,
-        agent_server: &Rc<dyn AgentServer>,
-        fs: &Arc<dyn Fs>,
-        window: &mut Window,
-        cx: &mut Context<Self>,
-    ) -> Vec<Entity<ConfigOptionSelector>> {
-        config_options
-            .config_options()
-            .into_iter()
-            .map(|option| {
-                let config_options = config_options.clone();
-                let agent_server = agent_server.clone();
-                let fs = fs.clone();
-                cx.new(|cx| {
-                    ConfigOptionSelector::new(
-                        config_options,
-                        option.id.clone(),
-                        agent_server,
-                        fs,
-                        window,
-                        cx,
-                    )
-                })
-            })
-            .collect()
-    }
-}
-
-impl Render for ConfigOptionsView {
-    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
-        if self.selectors.is_empty() {
-            return div().into_any_element();
-        }
-
-        h_flex()
-            .gap_1()
-            .children(self.selectors.iter().cloned())
-            .into_any_element()
-    }
-}
-
-struct ConfigOptionSelector {
-    config_options: Rc<dyn AgentSessionConfigOptions>,
-    config_id: acp::SessionConfigId,
-    picker_handle: PopoverMenuHandle<Picker<ConfigOptionPickerDelegate>>,
-    picker: Entity<Picker<ConfigOptionPickerDelegate>>,
-    setting_value: bool,
-}
-
-impl ConfigOptionSelector {
-    pub fn new(
-        config_options: Rc<dyn AgentSessionConfigOptions>,
-        config_id: acp::SessionConfigId,
-        agent_server: Rc<dyn AgentServer>,
-        fs: Arc<dyn Fs>,
-        window: &mut Window,
-        cx: &mut Context<Self>,
-    ) -> Self {
-        let option_count = config_options
-            .config_options()
-            .iter()
-            .find(|opt| opt.id == config_id)
-            .map(count_config_options)
-            .unwrap_or(0);
-
-        let is_searchable = option_count >= PICKER_THRESHOLD;
-
-        let picker = {
-            let config_options = config_options.clone();
-            let config_id = config_id.clone();
-            let agent_server = agent_server.clone();
-            let fs = fs.clone();
-            cx.new(move |picker_cx| {
-                let delegate = ConfigOptionPickerDelegate::new(
-                    config_options,
-                    config_id,
-                    agent_server,
-                    fs,
-                    window,
-                    picker_cx,
-                );
-
-                if is_searchable {
-                    Picker::list(delegate, window, picker_cx)
-                } else {
-                    Picker::nonsearchable_list(delegate, window, picker_cx)
-                }
-                .show_scrollbar(true)
-                .width(rems(20.))
-                .max_height(Some(rems(20.).into()))
-            })
-        };
-
-        Self {
-            config_options,
-            config_id,
-            picker_handle: PopoverMenuHandle::default(),
-            picker,
-            setting_value: false,
-        }
-    }
-
-    fn current_option(&self) -> Option<acp::SessionConfigOption> {
-        self.config_options
-            .config_options()
-            .into_iter()
-            .find(|opt| opt.id == self.config_id)
-    }
-
-    fn current_value_name(&self) -> String {
-        let Some(option) = self.current_option() else {
-            return "Unknown".to_string();
-        };
-
-        match &option.kind {
-            acp::SessionConfigKind::Select(select) => {
-                find_option_name(&select.options, &select.current_value)
-                    .unwrap_or_else(|| "Unknown".to_string())
-            }
-            _ => "Unknown".to_string(),
-        }
-    }
-
-    fn render_trigger_button(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Button {
-        let Some(option) = self.current_option() else {
-            return Button::new("config-option-trigger", "Unknown")
-                .label_size(LabelSize::Small)
-                .color(Color::Muted)
-                .disabled(true);
-        };
-
-        let icon = if self.picker_handle.is_deployed() {
-            IconName::ChevronUp
-        } else {
-            IconName::ChevronDown
-        };
-
-        Button::new(
-            ElementId::Name(format!("config-option-{}", option.id.0).into()),
-            self.current_value_name(),
-        )
-        .label_size(LabelSize::Small)
-        .color(Color::Muted)
-        .icon(icon)
-        .icon_size(IconSize::XSmall)
-        .icon_position(IconPosition::End)
-        .icon_color(Color::Muted)
-        .disabled(self.setting_value)
-    }
-}
-
-impl Render for ConfigOptionSelector {
-    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
-        let Some(option) = self.current_option() else {
-            return div().into_any_element();
-        };
-
-        let trigger_button = self.render_trigger_button(window, cx);
-
-        let option_name = option.name.clone();
-        let option_description: Option<SharedString> = option.description.map(Into::into);
-
-        let tooltip = Tooltip::element(move |_window, _cx| {
-            let mut content = v_flex().gap_1().child(Label::new(option_name.clone()));
-            if let Some(desc) = option_description.as_ref() {
-                content = content.child(
-                    Label::new(desc.clone())
-                        .size(LabelSize::Small)
-                        .color(Color::Muted),
-                );
-            }
-            content.into_any()
-        });
-
-        PickerPopoverMenu::new(
-            self.picker.clone(),
-            trigger_button,
-            tooltip,
-            gpui::Corner::BottomRight,
-            cx,
-        )
-        .with_handle(self.picker_handle.clone())
-        .render(window, cx)
-        .into_any_element()
-    }
-}
-
-#[derive(Clone)]
-enum ConfigOptionPickerEntry {
-    Separator(SharedString),
-    Option(ConfigOptionValue),
-}
-
-#[derive(Clone)]
-struct ConfigOptionValue {
-    value: acp::SessionConfigValueId,
-    name: String,
-    description: Option<String>,
-    group: Option<String>,
-}
-
-struct ConfigOptionPickerDelegate {
-    config_options: Rc<dyn AgentSessionConfigOptions>,
-    config_id: acp::SessionConfigId,
-    agent_server: Rc<dyn AgentServer>,
-    fs: Arc<dyn Fs>,
-    filtered_entries: Vec<ConfigOptionPickerEntry>,
-    all_options: Vec<ConfigOptionValue>,
-    selected_index: usize,
-    selected_description: Option<(usize, SharedString, bool)>,
-    favorites: HashSet<acp::SessionConfigValueId>,
-    _settings_subscription: Subscription,
-}
-
-impl ConfigOptionPickerDelegate {
-    fn new(
-        config_options: Rc<dyn AgentSessionConfigOptions>,
-        config_id: acp::SessionConfigId,
-        agent_server: Rc<dyn AgentServer>,
-        fs: Arc<dyn Fs>,
-        window: &mut Window,
-        cx: &mut Context<Picker<Self>>,
-    ) -> Self {
-        let favorites = agent_server.favorite_config_option_value_ids(&config_id, cx);
-
-        let all_options = extract_options(&config_options, &config_id);
-        let filtered_entries = options_to_picker_entries(&all_options, &favorites);
-
-        let current_value = get_current_value(&config_options, &config_id);
-        let selected_index = current_value
-            .and_then(|current| {
-                filtered_entries.iter().position(|entry| {
-                    matches!(entry, ConfigOptionPickerEntry::Option(opt) if opt.value == current)
-                })
-            })
-            .unwrap_or(0);
-
-        let agent_server_for_subscription = agent_server.clone();
-        let config_id_for_subscription = config_id.clone();
-        let settings_subscription =
-            cx.observe_global_in::<SettingsStore>(window, move |picker, window, cx| {
-                let new_favorites = agent_server_for_subscription
-                    .favorite_config_option_value_ids(&config_id_for_subscription, cx);
-                if new_favorites != picker.delegate.favorites {
-                    picker.delegate.favorites = new_favorites;
-                    picker.refresh(window, cx);
-                }
-            });
-
-        cx.notify();
-
-        Self {
-            config_options,
-            config_id,
-            agent_server,
-            fs,
-            filtered_entries,
-            all_options,
-            selected_index,
-            selected_description: None,
-            favorites,
-            _settings_subscription: settings_subscription,
-        }
-    }
-
-    fn current_value(&self) -> Option<acp::SessionConfigValueId> {
-        get_current_value(&self.config_options, &self.config_id)
-    }
-}
-
-impl PickerDelegate for ConfigOptionPickerDelegate {
-    type ListItem = AnyElement;
-
-    fn match_count(&self) -> usize {
-        self.filtered_entries.len()
-    }
-
-    fn selected_index(&self) -> usize {
-        self.selected_index
-    }
-
-    fn set_selected_index(&mut self, ix: usize, _: &mut Window, cx: &mut Context<Picker<Self>>) {
-        self.selected_index = ix.min(self.filtered_entries.len().saturating_sub(1));
-        cx.notify();
-    }
-
-    fn can_select(
-        &mut self,
-        ix: usize,
-        _window: &mut Window,
-        _cx: &mut Context<Picker<Self>>,
-    ) -> bool {
-        match self.filtered_entries.get(ix) {
-            Some(ConfigOptionPickerEntry::Option(_)) => true,
-            Some(ConfigOptionPickerEntry::Separator(_)) | None => false,
-        }
-    }
-
-    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
-        "Select an option…".into()
-    }
-
-    fn update_matches(
-        &mut self,
-        query: String,
-        window: &mut Window,
-        cx: &mut Context<Picker<Self>>,
-    ) -> Task<()> {
-        let all_options = self.all_options.clone();
-
-        cx.spawn_in(window, async move |this, cx| {
-            let filtered_options = match this
-                .read_with(cx, |_, cx| {
-                    if query.is_empty() {
-                        None
-                    } else {
-                        Some((all_options.clone(), query.clone(), cx.background_executor().clone()))
-                    }
-                })
-                .ok()
-                .flatten()
-            {
-                Some((options, q, executor)) => fuzzy_search_options(options, &q, executor).await,
-                None => all_options,
-            };
-
-            this.update_in(cx, |this, window, cx| {
-                this.delegate.filtered_entries =
-                    options_to_picker_entries(&filtered_options, &this.delegate.favorites);
-
-                let current_value = this.delegate.current_value();
-                let new_index = current_value
-                    .and_then(|current| {
-                        this.delegate.filtered_entries.iter().position(|entry| {
-                            matches!(entry, ConfigOptionPickerEntry::Option(opt) if opt.value == current)
-                        })
-                    })
-                    .unwrap_or(0);
-
-                this.set_selected_index(new_index, Some(picker::Direction::Down), true, window, cx);
-                cx.notify();
-            })
-            .ok();
-        })
-    }
-
-    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
-        if let Some(ConfigOptionPickerEntry::Option(option)) =
-            self.filtered_entries.get(self.selected_index)
-        {
-            if window.modifiers().secondary() {
-                let default_value = self
-                    .agent_server
-                    .default_config_option(self.config_id.0.as_ref(), cx);
-                let is_default = default_value.as_deref() == Some(&*option.value.0);
-
-                self.agent_server.set_default_config_option(
-                    self.config_id.0.as_ref(),
-                    if is_default {
-                        None
-                    } else {
-                        Some(option.value.0.as_ref())
-                    },
-                    self.fs.clone(),
-                    cx,
-                );
-            }
-
-            let task = self.config_options.set_config_option(
-                self.config_id.clone(),
-                option.value.clone(),
-                cx,
-            );
-
-            cx.spawn(async move |_, _| {
-                if let Err(err) = task.await {
-                    log::error!("Failed to set config option: {:?}", err);
-                }
-            })
-            .detach();
-
-            cx.emit(DismissEvent);
-        }
-    }
-
-    fn dismissed(&mut self, window: &mut Window, cx: &mut Context<Picker<Self>>) {
-        cx.defer_in(window, |picker, window, cx| {
-            picker.set_query("", window, cx);
-        });
-    }
-
-    fn render_match(
-        &self,
-        ix: usize,
-        selected: bool,
-        _: &mut Window,
-        cx: &mut Context<Picker<Self>>,
-    ) -> Option<Self::ListItem> {
-        match self.filtered_entries.get(ix)? {
-            ConfigOptionPickerEntry::Separator(title) => Some(
-                div()
-                    .when(ix > 0, |this| this.mt_1())
-                    .child(
-                        div()
-                            .px_2()
-                            .py_1()
-                            .text_xs()
-                            .text_color(cx.theme().colors().text_muted)
-                            .child(title.clone()),
-                    )
-                    .into_any_element(),
-            ),
-            ConfigOptionPickerEntry::Option(option) => {
-                let current_value = self.current_value();
-                let is_selected = current_value.as_ref() == Some(&option.value);
-
-                let default_value = self
-                    .agent_server
-                    .default_config_option(self.config_id.0.as_ref(), cx);
-                let is_default = default_value.as_deref() == Some(&*option.value.0);
-
-                let is_favorite = self.favorites.contains(&option.value);
-
-                let option_name = option.name.clone();
-                let description = option.description.clone();
-
-                Some(
-                    div()
-                        .id(("config-option-picker-item", ix))
-                        .when_some(description, |this, desc| {
-                            let desc: SharedString = desc.into();
-                            this.on_hover(cx.listener(move |menu, hovered, _, cx| {
-                                if *hovered {
-                                    menu.delegate.selected_description =
-                                        Some((ix, desc.clone(), is_default));
-                                } else if matches!(menu.delegate.selected_description, Some((id, _, _)) if id == ix)
-                                {
-                                    menu.delegate.selected_description = None;
-                                }
-                                cx.notify();
-                            }))
-                        })
-                        .child(
-                            ListItem::new(ix)
-                                .inset(true)
-                                .spacing(ListItemSpacing::Sparse)
-                                .toggle_state(selected)
-                                .child(h_flex().w_full().child(Label::new(option_name).truncate()))
-                                .end_slot(div().pr_2().when(is_selected, |this| {
-                                    this.child(Icon::new(IconName::Check).color(Color::Accent))
-                                }))
-                                .end_hover_slot(div().pr_1p5().child({
-                                    let (icon, color, tooltip) = if is_favorite {
-                                        (IconName::StarFilled, Color::Accent, "Unfavorite")
-                                    } else {
-                                        (IconName::Star, Color::Default, "Favorite")
-                                    };
-
-                                    let config_id = self.config_id.clone();
-                                    let value_id = option.value.clone();
-                                    let agent_server = self.agent_server.clone();
-                                    let fs = self.fs.clone();
-
-                                    IconButton::new(("toggle-favorite-config-option", ix), icon)
-                                        .layer(ElevationIndex::ElevatedSurface)
-                                        .icon_color(color)
-                                        .icon_size(IconSize::Small)
-                                        .tooltip(Tooltip::text(tooltip))
-                                        .on_click(move |_, _, cx| {
-                                            agent_server.toggle_favorite_config_option_value(
-                                                config_id.clone(),
-                                                value_id.clone(),
-                                                !is_favorite,
-                                                fs.clone(),
-                                                cx,
-                                            );
-                                        })
-                                })),
-                        )
-                        .into_any_element(),
-                )
-            }
-        }
-    }
-
-    fn documentation_aside(
-        &self,
-        _window: &mut Window,
-        _cx: &mut Context<Picker<Self>>,
-    ) -> Option<ui::DocumentationAside> {
-        self.selected_description
-            .as_ref()
-            .map(|(_, description, is_default)| {
-                let description = description.clone();
-                let is_default = *is_default;
-
-                ui::DocumentationAside::new(
-                    ui::DocumentationSide::Left,
-                    Rc::new(move |_| {
-                        v_flex()
-                            .gap_1()
-                            .child(Label::new(description.clone()))
-                            .child(HoldForDefault::new(is_default))
-                            .into_any_element()
-                    }),
-                )
-            })
-    }
-
-    fn documentation_aside_index(&self) -> Option<usize> {
-        self.selected_description.as_ref().map(|(ix, _, _)| *ix)
-    }
-}
-
-fn extract_options(
-    config_options: &Rc<dyn AgentSessionConfigOptions>,
-    config_id: &acp::SessionConfigId,
-) -> Vec<ConfigOptionValue> {
-    let Some(option) = config_options
-        .config_options()
-        .into_iter()
-        .find(|opt| &opt.id == config_id)
-    else {
-        return Vec::new();
-    };
-
-    match &option.kind {
-        acp::SessionConfigKind::Select(select) => match &select.options {
-            acp::SessionConfigSelectOptions::Ungrouped(options) => options
-                .iter()
-                .map(|opt| ConfigOptionValue {
-                    value: opt.value.clone(),
-                    name: opt.name.clone(),
-                    description: opt.description.clone(),
-                    group: None,
-                })
-                .collect(),
-            acp::SessionConfigSelectOptions::Grouped(groups) => groups
-                .iter()
-                .flat_map(|group| {
-                    group.options.iter().map(|opt| ConfigOptionValue {
-                        value: opt.value.clone(),
-                        name: opt.name.clone(),
-                        description: opt.description.clone(),
-                        group: Some(group.name.clone()),
-                    })
-                })
-                .collect(),
-            _ => Vec::new(),
-        },
-        _ => Vec::new(),
-    }
-}
-
-fn get_current_value(
-    config_options: &Rc<dyn AgentSessionConfigOptions>,
-    config_id: &acp::SessionConfigId,
-) -> Option<acp::SessionConfigValueId> {
-    config_options
-        .config_options()
-        .into_iter()
-        .find(|opt| &opt.id == config_id)
-        .and_then(|opt| match &opt.kind {
-            acp::SessionConfigKind::Select(select) => Some(select.current_value.clone()),
-            _ => None,
-        })
-}
-
-fn options_to_picker_entries(
-    options: &[ConfigOptionValue],
-    favorites: &HashSet<acp::SessionConfigValueId>,
-) -> Vec<ConfigOptionPickerEntry> {
-    let mut entries = Vec::new();
-
-    let mut favorite_options = Vec::new();
-
-    for option in options {
-        if favorites.contains(&option.value) {
-            favorite_options.push(option.clone());
-        }
-    }
-
-    if !favorite_options.is_empty() {
-        entries.push(ConfigOptionPickerEntry::Separator("Favorites".into()));
-        for option in favorite_options {
-            entries.push(ConfigOptionPickerEntry::Option(option));
-        }
-
-        // If the remaining list would start ungrouped (group == None), insert a separator so
-        // Favorites doesn't visually run into the main list.
-        if let Some(option) = options.first()
-            && option.group.is_none()
-        {
-            entries.push(ConfigOptionPickerEntry::Separator("All Options".into()));
-        }
-    }
-
-    let mut current_group: Option<String> = None;
-    for option in options {
-        if option.group != current_group {
-            if let Some(group_name) = &option.group {
-                entries.push(ConfigOptionPickerEntry::Separator(
-                    group_name.clone().into(),
-                ));
-            }
-            current_group = option.group.clone();
-        }
-        entries.push(ConfigOptionPickerEntry::Option(option.clone()));
-    }
-
-    entries
-}
-
-async fn fuzzy_search_options(
-    options: Vec<ConfigOptionValue>,
-    query: &str,
-    executor: BackgroundExecutor,
-) -> Vec<ConfigOptionValue> {
-    let candidates = options
-        .iter()
-        .enumerate()
-        .map(|(ix, opt)| StringMatchCandidate::new(ix, &opt.name))
-        .collect::<Vec<_>>();
-
-    let mut matches = fuzzy::match_strings(
-        &candidates,
-        query,
-        false,
-        true,
-        100,
-        &Default::default(),
-        executor,
-    )
-    .await;
-
-    matches.sort_unstable_by_key(|mat| {
-        let candidate = &candidates[mat.candidate_id];
-        (Reverse(OrderedFloat(mat.score)), candidate.id)
-    });
-
-    matches
-        .into_iter()
-        .map(|mat| options[mat.candidate_id].clone())
-        .collect()
-}
-
-fn find_option_name(
-    options: &acp::SessionConfigSelectOptions,
-    value_id: &acp::SessionConfigValueId,
-) -> Option<String> {
-    match options {
-        acp::SessionConfigSelectOptions::Ungrouped(opts) => opts
-            .iter()
-            .find(|o| &o.value == value_id)
-            .map(|o| o.name.clone()),
-        acp::SessionConfigSelectOptions::Grouped(groups) => groups.iter().find_map(|group| {
-            group
-                .options
-                .iter()
-                .find(|o| &o.value == value_id)
-                .map(|o| o.name.clone())
-        }),
-        _ => None,
-    }
-}
-
-fn count_config_options(option: &acp::SessionConfigOption) -> usize {
-    match &option.kind {
-        acp::SessionConfigKind::Select(select) => match &select.options {
-            acp::SessionConfigSelectOptions::Ungrouped(options) => options.len(),
-            acp::SessionConfigSelectOptions::Grouped(groups) => {
-                groups.iter().map(|g| g.options.len()).sum()
-            }
-            _ => 0,
-        },
-        _ => 0,
-    }
-}

crates/agent_ui/src/acp/message_editor.rs

@@ -31,7 +31,7 @@ use rope::Point;
 use settings::Settings;
 use std::{cell::RefCell, fmt::Write, rc::Rc, sync::Arc};
 use theme::ThemeSettings;
-use ui::{ContextMenu, prelude::*};
+use ui::prelude::*;
 use util::{ResultExt, debug_panic};
 use workspace::{CollaboratorId, Workspace};
 use zed_actions::agent::{Chat, PasteRaw};
@@ -132,21 +132,6 @@ impl MessageEditor {
                 placement: Some(ContextMenuPlacement::Above),
             });
             editor.register_addon(MessageEditorAddon::new());
-
-            editor.set_custom_context_menu(|editor, _point, window, cx| {
-                let has_selection = editor.has_non_empty_selection(&editor.display_snapshot(cx));
-
-                Some(ContextMenu::build(window, cx, |menu, _, _| {
-                    menu.action("Cut", Box::new(editor::actions::Cut))
-                        .action_disabled_when(
-                            !has_selection,
-                            "Copy",
-                            Box::new(editor::actions::Copy),
-                        )
-                        .action("Paste", Box::new(editor::actions::Paste))
-                }))
-            });
-
             editor
         });
         let mention_set =

crates/agent_ui/src/acp/mode_selector.rs

@@ -7,8 +7,8 @@ use gpui::{Context, Entity, FocusHandle, WeakEntity, Window, prelude::*};
 use settings::Settings as _;
 use std::{rc::Rc, sync::Arc};
 use ui::{
-    Button, ContextMenu, ContextMenuEntry, DocumentationSide, KeyBinding, PopoverMenu,
-    PopoverMenuHandle, Tooltip, prelude::*,
+    Button, ContextMenu, ContextMenuEntry, DocumentationEdge, DocumentationSide, KeyBinding,
+    PopoverMenu, PopoverMenuHandle, Tooltip, prelude::*,
 };
 
 use crate::{CycleModeSelector, ToggleProfileSelector, ui::HoldForDefault};
@@ -105,7 +105,7 @@ impl ModeSelector {
                     .toggleable(IconPosition::End, is_selected);
 
                 let entry = if let Some(description) = &mode.description {
-                    entry.documentation_aside(side, {
+                    entry.documentation_aside(side, DocumentationEdge::Bottom, {
                         let description = description.clone();
 
                         move |_| {

crates/agent_ui/src/acp/model_selector.rs

@@ -3,20 +3,20 @@ use std::{cmp::Reverse, rc::Rc, sync::Arc};
 use acp_thread::{AgentModelIcon, AgentModelInfo, AgentModelList, AgentModelSelector};
 use agent_client_protocol::ModelId;
 use agent_servers::AgentServer;
+use agent_settings::AgentSettings;
 use anyhow::Result;
 use collections::{HashSet, IndexMap};
 use fs::Fs;
 use futures::FutureExt;
 use fuzzy::{StringMatchCandidate, match_strings};
 use gpui::{
-    Action, AsyncWindowContext, BackgroundExecutor, DismissEvent, FocusHandle, Subscription, Task,
-    WeakEntity,
+    Action, AsyncWindowContext, BackgroundExecutor, DismissEvent, FocusHandle, Task, WeakEntity,
 };
 use itertools::Itertools;
 use ordered_float::OrderedFloat;
 use picker::{Picker, PickerDelegate};
-use settings::SettingsStore;
-use ui::{DocumentationAside, DocumentationSide, IntoElement, prelude::*};
+use settings::Settings;
+use ui::{DocumentationAside, DocumentationEdge, DocumentationSide, IntoElement, prelude::*};
 use util::ResultExt;
 use zed_actions::agent::OpenSettings;
 
@@ -54,9 +54,7 @@ pub struct AcpModelPickerDelegate {
     selected_index: usize,
     selected_description: Option<(usize, SharedString, bool)>,
     selected_model: Option<AgentModelInfo>,
-    favorites: HashSet<ModelId>,
     _refresh_models_task: Task<()>,
-    _settings_subscription: Subscription,
     focus_handle: FocusHandle,
 }
 
@@ -104,19 +102,6 @@ impl AcpModelPickerDelegate {
             })
         };
 
-        let agent_server_for_subscription = agent_server.clone();
-        let settings_subscription =
-            cx.observe_global_in::<SettingsStore>(window, move |picker, window, cx| {
-                // Only refresh if the favorites actually changed to avoid redundant work
-                // when other settings are modified (e.g., user editing settings.json)
-                let new_favorites = agent_server_for_subscription.favorite_model_ids(cx);
-                if new_favorites != picker.delegate.favorites {
-                    picker.delegate.favorites = new_favorites;
-                    picker.refresh(window, cx);
-                }
-            });
-        let favorites = agent_server.favorite_model_ids(cx);
-
         Self {
             selector,
             agent_server,
@@ -126,9 +111,7 @@ impl AcpModelPickerDelegate {
             selected_model: None,
             selected_index: 0,
             selected_description: None,
-            favorites,
             _refresh_models_task: refresh_models_task,
-            _settings_subscription: settings_subscription,
             focus_handle,
         }
     }
@@ -137,37 +120,40 @@ impl AcpModelPickerDelegate {
         self.selected_model.as_ref()
     }
 
-    pub fn favorites_count(&self) -> usize {
-        self.favorites.len()
-    }
-
     pub fn cycle_favorite_models(&mut self, window: &mut Window, cx: &mut Context<Picker<Self>>) {
-        if self.favorites.is_empty() {
+        if !self.selector.supports_favorites() {
             return;
         }
 
-        let Some(models) = &self.models else {
+        let favorites = AgentSettings::get_global(cx).favorite_model_ids();
+
+        if favorites.is_empty() {
+            return;
+        }
+
+        let Some(models) = self.models.clone() else {
             return;
         };
 
-        let all_models: Vec<&AgentModelInfo> = match models {
-            AgentModelList::Flat(list) => list.iter().collect(),
-            AgentModelList::Grouped(index_map) => index_map.values().flatten().collect(),
+        let all_models: Vec<AgentModelInfo> = match models {
+            AgentModelList::Flat(list) => list,
+            AgentModelList::Grouped(index_map) => index_map
+                .into_values()
+                .flatten()
+                .collect::<Vec<AgentModelInfo>>(),
         };
 
-        let favorite_models: Vec<_> = all_models
-            .into_iter()
-            .filter(|model| self.favorites.contains(&model.id))
+        let favorite_models = all_models
+            .iter()
+            .filter(|model| favorites.contains(&model.id))
             .unique_by(|model| &model.id)
-            .collect();
+            .cloned()
+            .collect::<Vec<_>>();
 
-        if favorite_models.is_empty() {
-            return;
-        }
-
-        let current_id = self.selected_model.as_ref().map(|m| &m.id);
+        let current_id = self.selected_model.as_ref().map(|m| m.id.clone());
 
         let current_index_in_favorites = current_id
+            .as_ref()
             .and_then(|id| favorite_models.iter().position(|m| &m.id == id))
             .unwrap_or(usize::MAX);
 
@@ -234,7 +220,11 @@ impl PickerDelegate for AcpModelPickerDelegate {
         window: &mut Window,
         cx: &mut Context<Picker<Self>>,
     ) -> Task<()> {
-        let favorites = self.favorites.clone();
+        let favorites = if self.selector.supports_favorites() {
+            AgentSettings::get_global(cx).favorite_model_ids()
+        } else {
+            Default::default()
+        };
 
         cx.spawn_in(window, async move |this, cx| {
             let filtered_models = match this
@@ -327,20 +317,21 @@ impl PickerDelegate for AcpModelPickerDelegate {
                 let default_model = self.agent_server.default_model(cx);
                 let is_default = default_model.as_ref() == Some(&model_info.id);
 
+                let supports_favorites = self.selector.supports_favorites();
+
                 let is_favorite = *is_favorite;
                 let handle_action_click = {
                     let model_id = model_info.id.clone();
                     let fs = self.fs.clone();
-                    let agent_server = self.agent_server.clone();
 
-                    cx.listener(move |_, _, _, cx| {
-                        agent_server.toggle_favorite_model(
+                    move |cx: &App| {
+                        crate::favorite_models::toggle_model_id_in_settings(
                             model_id.clone(),
                             !is_favorite,
                             fs.clone(),
                             cx,
                         );
-                    })
+                    }
                 };
 
                 Some(
@@ -366,8 +357,10 @@ impl PickerDelegate for AcpModelPickerDelegate {
                                 })
                                 .is_selected(is_selected)
                                 .is_focused(selected)
-                                .is_favorite(is_favorite)
-                                .on_toggle_favorite(handle_action_click),
+                                .when(supports_favorites, |this| {
+                                    this.is_favorite(is_favorite)
+                                        .on_toggle_favorite(handle_action_click)
+                                }),
                         )
                         .into_any_element(),
                 )
@@ -388,6 +381,7 @@ impl PickerDelegate for AcpModelPickerDelegate {
 
                 DocumentationAside::new(
                     DocumentationSide::Left,
+                    DocumentationEdge::Top,
                     Rc::new(move |_| {
                         v_flex()
                             .gap_1()
@@ -399,10 +393,6 @@ impl PickerDelegate for AcpModelPickerDelegate {
             })
     }
 
-    fn documentation_aside_index(&self) -> Option<usize> {
-        self.selected_description.as_ref().map(|(ix, _, _)| *ix)
-    }
-
     fn render_footer(
         &self,
         _window: &mut Window,
@@ -613,46 +603,6 @@ mod tests {
             .collect()
     }
 
-    #[gpui::test]
-    async fn test_fuzzy_match(cx: &mut TestAppContext) {
-        let models = create_model_list(vec![
-            (
-                "zed",
-                vec![
-                    "Claude 3.7 Sonnet",
-                    "Claude 3.7 Sonnet Thinking",
-                    "gpt-4.1",
-                    "gpt-4.1-nano",
-                ],
-            ),
-            ("openai", vec!["gpt-3.5-turbo", "gpt-4.1", "gpt-4.1-nano"]),
-            ("ollama", vec!["mistral", "deepseek"]),
-        ]);
-
-        // Results should preserve models order whenever possible.
-        // In the case below, `zed/gpt-4.1` and `openai/gpt-4.1` have identical
-        // similarity scores, but `zed/gpt-4.1` was higher in the models list,
-        // so it should appear first in the results.
-        let results = fuzzy_search(models.clone(), "41".into(), cx.executor()).await;
-        assert_models_eq(
-            results,
-            vec![
-                ("zed", vec!["gpt-4.1", "gpt-4.1-nano"]),
-                ("openai", vec!["gpt-4.1", "gpt-4.1-nano"]),
-            ],
-        );
-
-        // Fuzzy search
-        let results = fuzzy_search(models.clone(), "4n".into(), cx.executor()).await;
-        assert_models_eq(
-            results,
-            vec![
-                ("zed", vec!["gpt-4.1-nano"]),
-                ("openai", vec!["gpt-4.1-nano"]),
-            ],
-        );
-    }
-
     #[gpui::test]
     fn test_favorites_section_appears_when_favorites_exist(_cx: &mut TestAppContext) {
         let models = create_model_list(vec![
@@ -789,48 +739,42 @@ mod tests {
     }
 
     #[gpui::test]
-    fn test_favorites_count_returns_correct_count(_cx: &mut TestAppContext) {
-        let empty_favorites: HashSet<ModelId> = HashSet::default();
-        assert_eq!(empty_favorites.len(), 0);
-
-        let one_favorite = create_favorites(vec!["model-a"]);
-        assert_eq!(one_favorite.len(), 1);
-
-        let multiple_favorites = create_favorites(vec!["model-a", "model-b", "model-c"]);
-        assert_eq!(multiple_favorites.len(), 3);
-
-        let with_duplicates = create_favorites(vec!["model-a", "model-a", "model-b"]);
-        assert_eq!(with_duplicates.len(), 2);
-    }
-
-    #[gpui::test]
-    fn test_is_favorite_flag_set_correctly_in_entries(_cx: &mut TestAppContext) {
-        let models = AgentModelList::Flat(vec![
-            acp_thread::AgentModelInfo {
-                id: acp::ModelId::new("favorite-model".to_string()),
-                name: "Favorite".into(),
-                description: None,
-                icon: None,
-            },
-            acp_thread::AgentModelInfo {
-                id: acp::ModelId::new("regular-model".to_string()),
-                name: "Regular".into(),
-                description: None,
-                icon: None,
-            },
+    async fn test_fuzzy_match(cx: &mut TestAppContext) {
+        let models = create_model_list(vec![
+            (
+                "zed",
+                vec![
+                    "Claude 3.7 Sonnet",
+                    "Claude 3.7 Sonnet Thinking",
+                    "gpt-4.1",
+                    "gpt-4.1-nano",
+                ],
+            ),
+            ("openai", vec!["gpt-3.5-turbo", "gpt-4.1", "gpt-4.1-nano"]),
+            ("ollama", vec!["mistral", "deepseek"]),
         ]);
-        let favorites = create_favorites(vec!["favorite-model"]);
 
-        let entries = info_list_to_picker_entries(models, &favorites);
+        // Results should preserve models order whenever possible.
+        // In the case below, `zed/gpt-4.1` and `openai/gpt-4.1` have identical
+        // similarity scores, but `zed/gpt-4.1` was higher in the models list,
+        // so it should appear first in the results.
+        let results = fuzzy_search(models.clone(), "41".into(), cx.executor()).await;
+        assert_models_eq(
+            results,
+            vec![
+                ("zed", vec!["gpt-4.1", "gpt-4.1-nano"]),
+                ("openai", vec!["gpt-4.1", "gpt-4.1-nano"]),
+            ],
+        );
 
-        for entry in &entries {
-            if let AcpModelPickerEntry::Model(info, is_favorite) = entry {
-                if info.id.0.as_ref() == "favorite-model" {
-                    assert!(*is_favorite, "favorite-model should have is_favorite=true");
-                } else if info.id.0.as_ref() == "regular-model" {
-                    assert!(!*is_favorite, "regular-model should have is_favorite=false");
-                }
-            }
-        }
+        // Fuzzy search
+        let results = fuzzy_search(models.clone(), "4n".into(), cx.executor()).await;
+        assert_models_eq(
+            results,
+            vec![
+                ("zed", vec!["gpt-4.1-nano"]),
+                ("openai", vec!["gpt-4.1-nano"]),
+            ],
+        );
     }
 }

crates/agent_ui/src/acp/model_selector_popover.rs

@@ -2,13 +2,17 @@ use std::rc::Rc;
 use std::sync::Arc;
 
 use acp_thread::{AgentModelIcon, AgentModelInfo, AgentModelSelector};
+use agent_servers::AgentServer;
+use agent_settings::AgentSettings;
 use fs::Fs;
 use gpui::{Entity, FocusHandle};
 use picker::popover_menu::PickerPopoverMenu;
-use ui::{ButtonLike, PopoverMenuHandle, TintColor, Tooltip, prelude::*};
+use settings::Settings as _;
+use ui::{ButtonLike, KeyBinding, PopoverMenuHandle, TintColor, Tooltip, prelude::*};
+use zed_actions::agent::ToggleModelSelector;
 
+use crate::CycleFavoriteModels;
 use crate::acp::{AcpModelSelector, model_selector::acp_model_selector};
-use crate::ui::ModelSelectorTooltip;
 
 pub struct AcpModelSelectorPopover {
     selector: Entity<AcpModelSelector>,
@@ -19,7 +23,7 @@ pub struct AcpModelSelectorPopover {
 impl AcpModelSelectorPopover {
     pub(crate) fn new(
         selector: Rc<dyn AgentModelSelector>,
-        agent_server: Rc<dyn agent_servers::AgentServer>,
+        agent_server: Rc<dyn AgentServer>,
         fs: Arc<dyn Fs>,
         menu_handle: PopoverMenuHandle<AcpModelSelector>,
         focus_handle: FocusHandle,
@@ -60,8 +64,7 @@ impl AcpModelSelectorPopover {
 
 impl Render for AcpModelSelectorPopover {
     fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
-        let selector = self.selector.read(cx);
-        let model = selector.delegate.active_model();
+        let model = self.selector.read(cx).delegate.active_model();
         let model_name = model
             .as_ref()
             .map(|model| model.name.clone())
@@ -77,13 +80,43 @@ impl Render for AcpModelSelectorPopover {
             (Color::Muted, IconName::ChevronDown)
         };
 
-        let show_cycle_row = selector.delegate.favorites_count() > 1;
-
         let tooltip = Tooltip::element({
-            move |_, _cx| {
-                ModelSelectorTooltip::new(focus_handle.clone())
-                    .show_cycle_row(show_cycle_row)
-                    .into_any_element()
+            move |_, cx| {
+                let focus_handle = focus_handle.clone();
+                let should_show_cycle_row = !AgentSettings::get_global(cx)
+                    .favorite_model_ids()
+                    .is_empty();
+
+                v_flex()
+                    .gap_1()
+                    .child(
+                        h_flex()
+                            .gap_2()
+                            .justify_between()
+                            .child(Label::new("Change Model"))
+                            .child(KeyBinding::for_action_in(
+                                &ToggleModelSelector,
+                                &focus_handle,
+                                cx,
+                            )),
+                    )
+                    .when(should_show_cycle_row, |this| {
+                        this.child(
+                            h_flex()
+                                .pt_1()
+                                .gap_2()
+                                .border_t_1()
+                                .border_color(cx.theme().colors().border_variant)
+                                .justify_between()
+                                .child(Label::new("Cycle Favorited Models"))
+                                .child(KeyBinding::for_action_in(
+                                    &CycleFavoriteModels,
+                                    &focus_handle,
+                                    cx,
+                                )),
+                        )
+                    })
+                    .into_any()
             }
         });
 

crates/agent_ui/src/acp/thread_view.rs

@@ -24,11 +24,11 @@ use file_icons::FileIcons;
 use fs::Fs;
 use futures::FutureExt as _;
 use gpui::{
-    Action, Animation, AnimationExt, AnyView, App, BorderStyle, ClickEvent, CursorStyle,
-    EdgesRefinement, ElementId, Empty, Entity, FocusHandle, Focusable, Hsla, Length, ListOffset,
-    ListState, PlatformDisplay, SharedString, StyleRefinement, Subscription, Task, TextStyle,
-    TextStyleRefinement, UnderlineStyle, WeakEntity, Window, WindowHandle, div, ease_in_out,
-    linear_color_stop, linear_gradient, list, point, pulsating_between,
+    Action, Animation, AnimationExt, AnyView, App, BorderStyle, ClickEvent, ClipboardItem,
+    CursorStyle, EdgesRefinement, ElementId, Empty, Entity, FocusHandle, Focusable, Hsla, Length,
+    ListOffset, ListState, PlatformDisplay, SharedString, StyleRefinement, Subscription, Task,
+    TextStyle, TextStyleRefinement, UnderlineStyle, WeakEntity, Window, WindowHandle, div,
+    ease_in_out, linear_color_stop, linear_gradient, list, point, pulsating_between,
 };
 use language::Buffer;
 
@@ -47,16 +47,14 @@ use terminal_view::terminal_panel::TerminalPanel;
 use text::Anchor;
 use theme::{AgentFontSize, ThemeSettings};
 use ui::{
-    Callout, CommonAnimationExt, ContextMenu, ContextMenuEntry, CopyButton, Disclosure, Divider,
-    DividerColor, ElevationIndex, KeyBinding, PopoverMenuHandle, SpinnerLabel, TintColor, Tooltip,
-    WithScrollbar, prelude::*, right_click_menu,
+    Callout, CommonAnimationExt, Disclosure, Divider, DividerColor, ElevationIndex, KeyBinding,
+    PopoverMenuHandle, SpinnerLabel, TintColor, Tooltip, WithScrollbar, prelude::*,
 };
 use util::{ResultExt, size::format_file_size, time::duration_alt_display};
 use workspace::{CollaboratorId, NewTerminal, Workspace};
 use zed_actions::agent::{Chat, ToggleModelSelector};
 use zed_actions::assistant::OpenRulesLibrary;
 
-use super::config_options::ConfigOptionsView;
 use super::entry_view_state::EntryViewState;
 use crate::acp::AcpModelSelectorPopover;
 use crate::acp::ModeSelector;
@@ -273,14 +271,12 @@ pub struct AcpThreadView {
     message_editor: Entity<MessageEditor>,
     focus_handle: FocusHandle,
     model_selector: Option<Entity<AcpModelSelectorPopover>>,
-    config_options_view: Option<Entity<ConfigOptionsView>>,
     profile_selector: Option<Entity<ProfileSelector>>,
     notifications: Vec<WindowHandle<AgentNotification>>,
     notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
     thread_retry_status: Option<RetryStatus>,
     thread_error: Option<ThreadError>,
     thread_error_markdown: Option<Entity<Markdown>>,
-    token_limit_callout_dismissed: bool,
     thread_feedback: ThreadFeedbackState,
     list_state: ListState,
     auth_task: Option<Task<()>>,
@@ -432,15 +428,14 @@ impl AcpThreadView {
             login: None,
             message_editor,
             model_selector: None,
-            config_options_view: None,
             profile_selector: None,
+
             notifications: Vec::new(),
             notification_subscriptions: HashMap::default(),
             list_state: list_state,
             thread_retry_status: None,
             thread_error: None,
             thread_error_markdown: None,
-            token_limit_callout_dismissed: false,
             thread_feedback: Default::default(),
             auth_task: None,
             expanded_tool_calls: HashSet::default(),
@@ -617,64 +612,42 @@ impl AcpThreadView {
 
                         AgentDiff::set_active_thread(&workspace, thread.clone(), window, cx);
 
-                        // Check for config options first
-                        // Config options take precedence over legacy mode/model selectors
-                        // (feature flag gating happens at the data layer)
-                        let config_options_provider = thread
+                        this.model_selector = thread
                             .read(cx)
                             .connection()
-                            .session_config_options(thread.read(cx).session_id(), cx);
+                            .model_selector(thread.read(cx).session_id())
+                            .map(|selector| {
+                                let agent_server = this.agent.clone();
+                                let fs = this.project.read(cx).fs().clone();
+                                cx.new(|cx| {
+                                    AcpModelSelectorPopover::new(
+                                        selector,
+                                        agent_server,
+                                        fs,
+                                        PopoverMenuHandle::default(),
+                                        this.focus_handle(cx),
+                                        window,
+                                        cx,
+                                    )
+                                })
+                            });
 
-                        let mode_selector;
-                        if let Some(config_options) = config_options_provider {
-                            // Use config options - don't create mode_selector or model_selector
-                            let agent_server = this.agent.clone();
-                            let fs = this.project.read(cx).fs().clone();
-                            this.config_options_view = Some(cx.new(|cx| {
-                                ConfigOptionsView::new(config_options, agent_server, fs, window, cx)
-                            }));
-                            this.model_selector = None;
-                            mode_selector = None;
-                        } else {
-                            // Fall back to legacy mode/model selectors
-                            this.config_options_view = None;
-                            this.model_selector = thread
-                                .read(cx)
-                                .connection()
-                                .model_selector(thread.read(cx).session_id())
-                                .map(|selector| {
-                                    let agent_server = this.agent.clone();
-                                    let fs = this.project.read(cx).fs().clone();
-                                    cx.new(|cx| {
-                                        AcpModelSelectorPopover::new(
-                                            selector,
-                                            agent_server,
-                                            fs,
-                                            PopoverMenuHandle::default(),
-                                            this.focus_handle(cx),
-                                            window,
-                                            cx,
-                                        )
-                                    })
-                                });
-
-                            mode_selector = thread
-                                .read(cx)
-                                .connection()
-                                .session_modes(thread.read(cx).session_id(), cx)
-                                .map(|session_modes| {
-                                    let fs = this.project.read(cx).fs().clone();
-                                    let focus_handle = this.focus_handle(cx);
-                                    cx.new(|_cx| {
-                                        ModeSelector::new(
-                                            session_modes,
-                                            this.agent.clone(),
-                                            fs,
-                                            focus_handle,
-                                        )
-                                    })
-                                });
-                        }
+                        let mode_selector = thread
+                            .read(cx)
+                            .connection()
+                            .session_modes(thread.read(cx).session_id(), cx)
+                            .map(|session_modes| {
+                                let fs = this.project.read(cx).fs().clone();
+                                let focus_handle = this.focus_handle(cx);
+                                cx.new(|_cx| {
+                                    ModeSelector::new(
+                                        session_modes,
+                                        this.agent.clone(),
+                                        fs,
+                                        focus_handle,
+                                    )
+                                })
+                            });
 
                         let mut subscriptions = vec![
                             cx.subscribe_in(&thread, window, Self::handle_thread_event),
@@ -1420,7 +1393,6 @@ impl AcpThreadView {
     fn clear_thread_error(&mut self, cx: &mut Context<Self>) {
         self.thread_error = None;
         self.thread_error_markdown = None;
-        self.token_limit_callout_dismissed = true;
         cx.notify();
     }
 
@@ -1547,10 +1519,6 @@ impl AcpThreadView {
                 // The connection keeps track of the mode
                 cx.notify();
             }
-            AcpThreadEvent::ConfigOptionsUpdated(_) => {
-                // The watch task in ConfigOptionsView handles rebuilding selectors
-                cx.notify();
-            }
         }
         cx.notify();
     }
@@ -2070,7 +2038,7 @@ impl AcpThreadView {
                                         }
                                     })
                                     .text_xs()
-                                    .child(editor.clone().into_any_element())
+                                    .child(editor.clone().into_any_element()),
                             )
                             .when(editor_focus, |this| {
                                 let base_container = h_flex()
@@ -2186,6 +2154,7 @@ impl AcpThreadView {
                                     if this_is_blank {
                                         return None;
                                     }
+
                                     Some(
                                         self.render_thinking_block(
                                             entry_ix,
@@ -2211,7 +2180,7 @@ impl AcpThreadView {
                         .when(is_last, |this| this.pb_4())
                         .w_full()
                         .text_ui(cx)
-                        .child(self.render_message_context_menu(entry_ix, message_body, cx))
+                        .child(message_body)
                         .into_any()
                 }
             }
@@ -2318,70 +2287,6 @@ impl AcpThreadView {
         }
     }
 
-    fn render_message_context_menu(
-        &self,
-        entry_ix: usize,
-        message_body: AnyElement,
-        cx: &Context<Self>,
-    ) -> AnyElement {
-        let entity = cx.entity();
-        let workspace = self.workspace.clone();
-
-        right_click_menu(format!("agent_context_menu-{}", entry_ix))
-            .trigger(move |_, _, _| message_body)
-            .menu(move |window, cx| {
-                let focus = window.focused(cx);
-                let entity = entity.clone();
-                let workspace = workspace.clone();
-
-                ContextMenu::build(window, cx, move |menu, _, cx| {
-                    let is_at_top = entity.read(cx).list_state.logical_scroll_top().item_ix == 0;
-
-                    let scroll_item = if is_at_top {
-                        ContextMenuEntry::new("Scroll to Bottom").handler({
-                            let entity = entity.clone();
-                            move |_, cx| {
-                                entity.update(cx, |this, cx| {
-                                    this.scroll_to_bottom(cx);
-                                });
-                            }
-                        })
-                    } else {
-                        ContextMenuEntry::new("Scroll to Top").handler({
-                            let entity = entity.clone();
-                            move |_, cx| {
-                                entity.update(cx, |this, cx| {
-                                    this.scroll_to_top(cx);
-                                });
-                            }
-                        })
-                    };
-
-                    let open_thread_as_markdown = ContextMenuEntry::new("Open Thread as Markdown")
-                        .handler({
-                            let entity = entity.clone();
-                            let workspace = workspace.clone();
-                            move |window, cx| {
-                                if let Some(workspace) = workspace.upgrade() {
-                                    entity
-                                        .update(cx, |this, cx| {
-                                            this.open_thread_as_markdown(workspace, window, cx)
-                                        })
-                                        .detach_and_log_err(cx);
-                                }
-                            }
-                        });
-
-                    menu.when_some(focus, |menu, focus| menu.context(focus))
-                        .action("Copy", Box::new(markdown::CopyAsMarkdown))
-                        .separator()
-                        .item(scroll_item)
-                        .item(open_thread_as_markdown)
-                })
-            })
-            .into_any_element()
-    }
-
     fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
         cx.theme()
             .colors()
@@ -2584,11 +2489,9 @@ impl AcpThreadView {
                                     .border_color(self.tool_card_border_color(cx))
                                     .child(input_output_header("Raw Input:".into()))
                                     .children(tool_call.raw_input_markdown.clone().map(|input| {
-                                        div().id(("tool-call-raw-input-markdown", entry_ix)).child(
-                                            self.render_markdown(
-                                                input,
-                                                default_markdown_style(false, false, window, cx),
-                                            ),
+                                        self.render_markdown(
+                                            input,
+                                            default_markdown_style(false, false, window, cx),
                                         )
                                     }))
                                     .child(input_output_header("Output:".into())),
@@ -2596,17 +2499,15 @@ impl AcpThreadView {
                         })
                         .children(tool_call.content.iter().enumerate().map(
                             |(content_ix, content)| {
-                                div().id(("tool-call-output", entry_ix)).child(
-                                    self.render_tool_call_content(
-                                        entry_ix,
-                                        content,
-                                        content_ix,
-                                        tool_call,
-                                        use_card_layout,
-                                        window,
-                                        cx,
-                                    ),
-                                )
+                                div().child(self.render_tool_call_content(
+                                    entry_ix,
+                                    content,
+                                    content_ix,
+                                    tool_call,
+                                    use_card_layout,
+                                    window,
+                                    cx,
+                                ))
                             },
                         ))
                         .into_any(),
@@ -4383,6 +4284,37 @@ impl AcpThreadView {
 
         v_flex()
             .on_action(cx.listener(Self::expand_message_editor))
+            .on_action(cx.listener(|this, _: &ToggleProfileSelector, window, cx| {
+                if let Some(profile_selector) = this.profile_selector.as_ref() {
+                    profile_selector.read(cx).menu_handle().toggle(window, cx);
+                } else if let Some(mode_selector) = this.mode_selector() {
+                    mode_selector.read(cx).menu_handle().toggle(window, cx);
+                }
+            }))
+            .on_action(cx.listener(|this, _: &CycleModeSelector, window, cx| {
+                if let Some(profile_selector) = this.profile_selector.as_ref() {
+                    profile_selector.update(cx, |profile_selector, cx| {
+                        profile_selector.cycle_profile(cx);
+                    });
+                } else if let Some(mode_selector) = this.mode_selector() {
+                    mode_selector.update(cx, |mode_selector, cx| {
+                        mode_selector.cycle_mode(window, cx);
+                    });
+                }
+            }))
+            .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
+                if let Some(model_selector) = this.model_selector.as_ref() {
+                    model_selector
+                        .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
+                }
+            }))
+            .on_action(cx.listener(|this, _: &CycleFavoriteModels, window, cx| {
+                if let Some(model_selector) = this.model_selector.as_ref() {
+                    model_selector.update(cx, |model_selector, cx| {
+                        model_selector.cycle_favorite_models(window, cx);
+                    });
+                }
+            }))
             .p_2()
             .gap_2()
             .border_t_1()
@@ -4446,12 +4378,8 @@ impl AcpThreadView {
                             .gap_1()
                             .children(self.render_token_usage(cx))
                             .children(self.profile_selector.clone())
-                            // Either config_options_view OR (mode_selector + model_selector)
-                            .children(self.config_options_view.clone())
-                            .when(self.config_options_view.is_none(), |this| {
-                                this.children(self.mode_selector().cloned())
-                                    .children(self.model_selector.clone())
-                            })
+                            .children(self.mode_selector().cloned())
+                            .children(self.model_selector.clone())
                             .child(self.render_send_button(cx)),
                     ),
             )
@@ -5426,26 +5354,22 @@ impl AcpThreadView {
         cx.notify();
     }
 
-    fn render_token_limit_callout(&self, cx: &mut Context<Self>) -> Option<Callout> {
-        if self.token_limit_callout_dismissed {
-            return None;
-        }
-
+    fn render_token_limit_callout(
+        &self,
+        line_height: Pixels,
+        cx: &mut Context<Self>,
+    ) -> Option<Callout> {
         let token_usage = self.thread()?.read(cx).token_usage()?;
         let ratio = token_usage.ratio();
 
-        let (severity, icon, title) = match ratio {
+        let (severity, title) = match ratio {
             acp_thread::TokenUsageRatio::Normal => return None,
-            acp_thread::TokenUsageRatio::Warning => (
-                Severity::Warning,
-                IconName::Warning,
-                "Thread reaching the token limit soon",
-            ),
-            acp_thread::TokenUsageRatio::Exceeded => (
-                Severity::Error,
-                IconName::XCircle,
-                "Thread reached the token limit",
-            ),
+            acp_thread::TokenUsageRatio::Warning => {
+                (Severity::Warning, "Thread reaching the token limit soon")
+            }
+            acp_thread::TokenUsageRatio::Exceeded => {
+                (Severity::Error, "Thread reached the token limit")
+            }
         };
 
         let burn_mode_available = self.as_native_thread(cx).is_some_and(|thread| {
@@ -5465,7 +5389,7 @@ impl AcpThreadView {
         Some(
             Callout::new()
                 .severity(severity)
-                .icon(icon)
+                .line_height(line_height)
                 .title(title)
                 .description(description)
                 .actions_slot(
@@ -5497,8 +5421,7 @@ impl AcpThreadView {
                                     })),
                             )
                         }),
-                )
-                .dismiss_action(self.dismiss_error_button(cx)),
+                ),
         )
     }
 
@@ -5921,13 +5844,18 @@ impl AcpThreadView {
     fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
         let message = message.into();
 
-        CopyButton::new(message).tooltip_label("Copy Error Message")
+        IconButton::new("copy", IconName::Copy)
+            .icon_size(IconSize::Small)
+            .tooltip(Tooltip::text("Copy Error Message"))
+            .on_click(move |_, _, cx| {
+                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
+            })
     }
 
     fn dismiss_error_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
         IconButton::new("dismiss", IconName::Close)
             .icon_size(IconSize::Small)
-            .tooltip(Tooltip::text("Dismiss"))
+            .tooltip(Tooltip::text("Dismiss Error"))
             .on_click(cx.listener({
                 move |this, _, _, cx| {
                     this.clear_thread_error(cx);
@@ -6073,37 +6001,6 @@ impl Render for AcpThreadView {
             .on_action(cx.listener(Self::allow_always))
             .on_action(cx.listener(Self::allow_once))
             .on_action(cx.listener(Self::reject_once))
-            .on_action(cx.listener(|this, _: &ToggleProfileSelector, window, cx| {
-                if let Some(profile_selector) = this.profile_selector.as_ref() {
-                    profile_selector.read(cx).menu_handle().toggle(window, cx);
-                } else if let Some(mode_selector) = this.mode_selector() {
-                    mode_selector.read(cx).menu_handle().toggle(window, cx);
-                }
-            }))
-            .on_action(cx.listener(|this, _: &CycleModeSelector, window, cx| {
-                if let Some(profile_selector) = this.profile_selector.as_ref() {
-                    profile_selector.update(cx, |profile_selector, cx| {
-                        profile_selector.cycle_profile(cx);
-                    });
-                } else if let Some(mode_selector) = this.mode_selector() {
-                    mode_selector.update(cx, |mode_selector, cx| {
-                        mode_selector.cycle_mode(window, cx);
-                    });
-                }
-            }))
-            .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
-                if let Some(model_selector) = this.model_selector.as_ref() {
-                    model_selector
-                        .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
-                }
-            }))
-            .on_action(cx.listener(|this, _: &CycleFavoriteModels, window, cx| {
-                if let Some(model_selector) = this.model_selector.as_ref() {
-                    model_selector.update(cx, |model_selector, cx| {
-                        model_selector.cycle_favorite_models(window, cx);
-                    });
-                }
-            }))
             .track_focus(&self.focus_handle)
             .bg(cx.theme().colors().panel_background)
             .child(match &self.thread_state {
@@ -6187,7 +6084,7 @@ impl Render for AcpThreadView {
                 if let Some(usage_callout) = self.render_usage_callout(line_height, cx) {
                     Some(usage_callout.into_any_element())
                 } else {
-                    self.render_token_limit_callout(cx)
+                    self.render_token_limit_callout(line_height, cx)
                         .map(|token_limit_callout| token_limit_callout.into_any_element())
                 },
             )

crates/agent_ui/src/agent_configuration.rs

@@ -1370,9 +1370,6 @@ async fn open_new_agent_servers_entry_in_settings_editor(
                                 env: Some(HashMap::default()),
                                 default_mode: None,
                                 default_model: None,
-                                favorite_models: vec![],
-                                default_config_options: Default::default(),
-                                favorite_config_option_values: Default::default(),
                             },
                         );
                 }

crates/agent_ui/src/agent_diff.rs

@@ -17,7 +17,7 @@ use gpui::{
     Global, SharedString, Subscription, Task, WeakEntity, Window, prelude::*,
 };
 
-use language::{Buffer, Capability, OffsetRangeExt, Point};
+use language::{Buffer, Capability, DiskState, OffsetRangeExt, Point};
 use multi_buffer::PathKey;
 use project::{Project, ProjectItem, ProjectPath};
 use settings::{Settings, SettingsStore};
@@ -146,13 +146,13 @@ impl AgentDiffPane {
             paths_to_delete.remove(&path_key);
 
             let snapshot = buffer.read(cx).snapshot();
+            let diff = diff_handle.read(cx);
 
-            let diff_hunk_ranges = diff_handle
-                .read(cx)
-                .snapshot(cx)
+            let diff_hunk_ranges = diff
                 .hunks_intersecting_range(
                     language::Anchor::min_max_range_for_buffer(snapshot.remote_id()),
                     &snapshot,
+                    cx,
                 )
                 .map(|diff_hunk| diff_hunk.buffer_range.to_point(&snapshot))
                 .collect::<Vec<_>>();
@@ -192,7 +192,7 @@ impl AgentDiffPane {
                     && buffer
                         .read(cx)
                         .file()
-                        .is_some_and(|file| file.disk_state().is_deleted())
+                        .is_some_and(|file| file.disk_state() == DiskState::Deleted)
                 {
                     editor.fold_buffer(snapshot.text.remote_id(), cx)
                 }
@@ -1363,8 +1363,7 @@ impl AgentDiff {
             | AcpThreadEvent::PromptCapabilitiesUpdated
             | AcpThreadEvent::AvailableCommandsUpdated(_)
             | AcpThreadEvent::Retry(_)
-            | AcpThreadEvent::ModeUpdated(_)
-            | AcpThreadEvent::ConfigOptionsUpdated(_) => {}
+            | AcpThreadEvent::ModeUpdated(_) => {}
         }
     }
 

crates/agent_ui/src/agent_model_selector.rs

@@ -1,7 +1,6 @@
 use crate::{
     ModelUsageContext,
     language_model_selector::{LanguageModelSelector, language_model_selector},
-    ui::ModelSelectorTooltip,
 };
 use fs::Fs;
 use gpui::{Entity, FocusHandle, SharedString};
@@ -10,6 +9,7 @@ use picker::popover_menu::PickerPopoverMenu;
 use settings::update_settings_file;
 use std::sync::Arc;
 use ui::{ButtonLike, PopoverMenuHandle, TintColor, Tooltip, prelude::*};
+use zed_actions::agent::ToggleModelSelector;
 
 pub struct AgentModelSelector {
     selector: Entity<LanguageModelSelector>,
@@ -81,12 +81,6 @@ impl AgentModelSelector {
     pub fn active_model(&self, cx: &App) -> Option<language_model::ConfiguredModel> {
         self.selector.read(cx).delegate.active_model(cx)
     }
-
-    pub fn cycle_favorite_models(&self, window: &mut Window, cx: &mut Context<Self>) {
-        self.selector.update(cx, |selector, cx| {
-            selector.delegate.cycle_favorite_models(window, cx);
-        });
-    }
 }
 
 impl Render for AgentModelSelector {
@@ -104,18 +98,8 @@ impl Render for AgentModelSelector {
             Color::Muted
         };
 
-        let show_cycle_row = self.selector.read(cx).delegate.favorites_count() > 1;
-
         let focus_handle = self.focus_handle.clone();
 
-        let tooltip = Tooltip::element({
-            move |_, _cx| {
-                ModelSelectorTooltip::new(focus_handle.clone())
-                    .show_cycle_row(show_cycle_row)
-                    .into_any_element()
-            }
-        });
-
         PickerPopoverMenu::new(
             self.selector.clone(),
             ButtonLike::new("active-model")
@@ -141,7 +125,9 @@ impl Render for AgentModelSelector {
                         .color(color)
                         .size(IconSize::XSmall),
                 ),
-            tooltip,
+            move |_window, cx| {
+                Tooltip::for_action_in("Change Model", &ToggleModelSelector, &focus_handle, cx)
+            },
             gpui::Corner::TopRight,
             cx,
         )

crates/agent_ui/src/favorite_models.rs

@@ -1,5 +1,6 @@
 use std::sync::Arc;
 
+use agent_client_protocol::ModelId;
 use fs::Fs;
 use language_model::LanguageModel;
 use settings::{LanguageModelSelection, update_settings_file};
@@ -12,11 +13,20 @@ fn language_model_to_selection(model: &Arc<dyn LanguageModel>) -> LanguageModelS
     }
 }
 
+fn model_id_to_selection(model_id: &ModelId) -> LanguageModelSelection {
+    let id = model_id.0.as_ref();
+    let (provider, model) = id.split_once('/').unwrap_or(("", id));
+    LanguageModelSelection {
+        provider: provider.to_owned().into(),
+        model: model.to_owned(),
+    }
+}
+
 pub fn toggle_in_settings(
     model: Arc<dyn LanguageModel>,
     should_be_favorite: bool,
     fs: Arc<dyn Fs>,
-    cx: &mut App,
+    cx: &App,
 ) {
     let selection = language_model_to_selection(&model);
     update_settings_file(fs, cx, move |settings, _| {
@@ -28,3 +38,20 @@ pub fn toggle_in_settings(
         }
     });
 }
+
+pub fn toggle_model_id_in_settings(
+    model_id: ModelId,
+    should_be_favorite: bool,
+    fs: Arc<dyn Fs>,
+    cx: &App,
+) {
+    let selection = model_id_to_selection(&model_id);
+    update_settings_file(fs, cx, move |settings, _| {
+        let agent = settings.agent.get_or_insert_default();
+        if should_be_favorite {
+            agent.add_favorite_model(selection.clone());
+        } else {
+            agent.remove_favorite_model(&selection);
+        }
+    });
+}

crates/agent_ui/src/inline_assistant.rs

@@ -1259,26 +1259,28 @@ impl InlineAssistant {
                 let bottom = top + 1.0;
                 (top, bottom)
             });
-            let height_in_lines = editor.visible_line_count().unwrap_or(0.);
-            let vertical_scroll_margin = editor.vertical_scroll_margin() as ScrollOffset;
-            let scroll_target_top = (scroll_target_range.0 - vertical_scroll_margin)
-                // Don't scroll up too far in the case of a large vertical_scroll_margin.
-                .max(scroll_target_range.0 - height_in_lines / 2.0);
-            let scroll_target_bottom = (scroll_target_range.1 + vertical_scroll_margin)
-                // Don't scroll down past where the top would still be visible.
-                .min(scroll_target_top + height_in_lines);
+            let mut scroll_target_top = scroll_target_range.0;
+            let mut scroll_target_bottom = scroll_target_range.1;
 
+            scroll_target_top -= editor.vertical_scroll_margin() as ScrollOffset;
+            scroll_target_bottom += editor.vertical_scroll_margin() as ScrollOffset;
+
+            let height_in_lines = editor.visible_line_count().unwrap_or(0.);
             let scroll_top = editor.scroll_position(cx).y;
             let scroll_bottom = scroll_top + height_in_lines;
 
             if scroll_target_top < scroll_top {
                 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
             } else if scroll_target_bottom > scroll_bottom {
-                editor.set_scroll_position(
-                    point(0., scroll_target_bottom - height_in_lines),
-                    window,
-                    cx,
-                );
+                if (scroll_target_bottom - scroll_target_top) <= height_in_lines {
+                    editor.set_scroll_position(
+                        point(0., scroll_target_bottom - height_in_lines),
+                        window,
+                        cx,
+                    );
+                } else {
+                    editor.set_scroll_position(point(0., scroll_target_top), window, cx);
+                }
             }
         });
     }

crates/agent_ui/src/inline_prompt_editor.rs

@@ -40,9 +40,7 @@ use crate::completion_provider::{
 use crate::mention_set::paste_images_as_context;
 use crate::mention_set::{MentionSet, crease_for_mention};
 use crate::terminal_codegen::TerminalCodegen;
-use crate::{
-    CycleFavoriteModels, CycleNextInlineAssist, CyclePreviousInlineAssist, ModelUsageContext,
-};
+use crate::{CycleNextInlineAssist, CyclePreviousInlineAssist, ModelUsageContext};
 
 actions!(inline_assistant, [ThumbsUpResult, ThumbsDownResult]);
 
@@ -150,7 +148,7 @@ impl<T: 'static> Render for PromptEditor<T> {
             .into_any_element();
 
         v_flex()
-            .key_context("InlineAssistant")
+            .key_context("PromptEditor")
             .capture_action(cx.listener(Self::paste))
             .block_mouse_except_scroll()
             .size_full()
@@ -164,6 +162,10 @@ impl<T: 'static> Render for PromptEditor<T> {
             .bg(cx.theme().colors().editor_background)
             .child(
                 h_flex()
+                    .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
+                        this.model_selector
+                            .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
+                    }))
                     .on_action(cx.listener(Self::confirm))
                     .on_action(cx.listener(Self::cancel))
                     .on_action(cx.listener(Self::move_up))
@@ -172,15 +174,6 @@ impl<T: 'static> Render for PromptEditor<T> {
                     .on_action(cx.listener(Self::thumbs_down))
                     .capture_action(cx.listener(Self::cycle_prev))
                     .capture_action(cx.listener(Self::cycle_next))
-                    .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
-                        this.model_selector
-                            .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
-                    }))
-                    .on_action(cx.listener(|this, _: &CycleFavoriteModels, window, cx| {
-                        this.model_selector.update(cx, |model_selector, cx| {
-                            model_selector.cycle_favorite_models(window, cx);
-                        });
-                    }))
                     .child(
                         WithRemSize::new(ui_font_size)
                             .h_full()
@@ -862,7 +855,7 @@ impl<T: 'static> PromptEditor<T> {
                                         .map(|this| {
                                             if rated {
                                                 this.disabled(true)
-                                                    .icon_color(Color::Disabled)
+                                                    .icon_color(Color::Ignored)
                                                     .tooltip(move |_, cx| {
                                                         Tooltip::with_meta(
                                                             "Good Result",
@@ -872,15 +865,8 @@ impl<T: 'static> PromptEditor<T> {
                                                         )
                                                     })
                                             } else {
-                                                this.icon_color(Color::Muted).tooltip(
-                                                    move |_, cx| {
-                                                        Tooltip::for_action(
-                                                            "Good Result",
-                                                            &ThumbsUpResult,
-                                                            cx,
-                                                        )
-                                                    },
-                                                )
+                                                this.icon_color(Color::Muted)
+                                                    .tooltip(Tooltip::text("Good Result"))
                                             }
                                         })
                                         .on_click(cx.listener(|this, _, window, cx| {
@@ -893,7 +879,7 @@ impl<T: 'static> PromptEditor<T> {
                                         .map(|this| {
                                             if rated {
                                                 this.disabled(true)
-                                                    .icon_color(Color::Disabled)
+                                                    .icon_color(Color::Ignored)
                                                     .tooltip(move |_, cx| {
                                                         Tooltip::with_meta(
                                                             "Bad Result",
@@ -903,15 +889,8 @@ impl<T: 'static> PromptEditor<T> {
                                                         )
                                                     })
                                             } else {
-                                                this.icon_color(Color::Muted).tooltip(
-                                                    move |_, cx| {
-                                                        Tooltip::for_action(
-                                                            "Bad Result",
-                                                            &ThumbsDownResult,
-                                                            cx,
-                                                        )
-                                                    },
-                                                )
+                                                this.icon_color(Color::Muted)
+                                                    .tooltip(Tooltip::text("Bad Result"))
                                             }
                                         })
                                         .on_click(cx.listener(|this, _, window, cx| {
@@ -1109,6 +1088,7 @@ impl<T: 'static> PromptEditor<T> {
         let colors = cx.theme().colors();
 
         div()
+            .key_context("InlineAssistEditor")
             .size_full()
             .p_2()
             .pl_1()

crates/agent_ui/src/language_model_selector.rs

@@ -20,14 +20,14 @@ use crate::ui::{ModelSelectorFooter, ModelSelectorHeader, ModelSelectorListItem}
 
 type OnModelChanged = Arc<dyn Fn(Arc<dyn LanguageModel>, &mut App) + 'static>;
 type GetActiveModel = Arc<dyn Fn(&App) -> Option<ConfiguredModel> + 'static>;
-type OnToggleFavorite = Arc<dyn Fn(Arc<dyn LanguageModel>, bool, &mut App) + 'static>;
+type OnToggleFavorite = Arc<dyn Fn(Arc<dyn LanguageModel>, bool, &App) + 'static>;
 
 pub type LanguageModelSelector = Picker<LanguageModelPickerDelegate>;
 
 pub fn language_model_selector(
     get_active_model: impl Fn(&App) -> Option<ConfiguredModel> + 'static,
     on_model_changed: impl Fn(Arc<dyn LanguageModel>, &mut App) + 'static,
-    on_toggle_favorite: impl Fn(Arc<dyn LanguageModel>, bool, &mut App) + 'static,
+    on_toggle_favorite: impl Fn(Arc<dyn LanguageModel>, bool, &App) + 'static,
     popover_styles: bool,
     focus_handle: FocusHandle,
     window: &mut Window,
@@ -133,7 +133,7 @@ impl LanguageModelPickerDelegate {
     fn new(
         get_active_model: impl Fn(&App) -> Option<ConfiguredModel> + 'static,
         on_model_changed: impl Fn(Arc<dyn LanguageModel>, &mut App) + 'static,
-        on_toggle_favorite: impl Fn(Arc<dyn LanguageModel>, bool, &mut App) + 'static,
+        on_toggle_favorite: impl Fn(Arc<dyn LanguageModel>, bool, &App) + 'static,
         popover_styles: bool,
         focus_handle: FocusHandle,
         window: &mut Window,
@@ -250,10 +250,6 @@ impl LanguageModelPickerDelegate {
         (self.get_active_model)(cx)
     }
 
-    pub fn favorites_count(&self) -> usize {
-        self.all_models.favorites.len()
-    }
-
     pub fn cycle_favorite_models(&mut self, window: &mut Window, cx: &mut Context<Picker<Self>>) {
         if self.all_models.favorites.is_empty() {
             return;
@@ -565,10 +561,7 @@ impl PickerDelegate for LanguageModelPickerDelegate {
                 let handle_action_click = {
                     let model = model_info.model.clone();
                     let on_toggle_favorite = self.on_toggle_favorite.clone();
-                    cx.listener(move |picker, _, window, cx| {
-                        on_toggle_favorite(model.clone(), !is_favorite, cx);
-                        picker.refresh(window, cx);
-                    })
+                    move |cx: &App| on_toggle_favorite(model.clone(), !is_favorite, cx)
                 };
 
                 Some(

crates/agent_ui/src/mention_set.rs

@@ -12,8 +12,8 @@ use editor::{
 };
 use futures::{AsyncReadExt as _, FutureExt as _, future::Shared};
 use gpui::{
-    AppContext, ClipboardEntry, Context, Empty, Entity, EntityId, Image, ImageFormat, Img,
-    SharedString, Task, WeakEntity,
+    Animation, AnimationExt as _, AppContext, ClipboardEntry, Context, Empty, Entity, EntityId,
+    Image, ImageFormat, Img, SharedString, Task, WeakEntity, pulsating_between,
 };
 use http_client::{AsyncBody, HttpClientWithUrl};
 use itertools::Either;
@@ -32,14 +32,13 @@ use std::{
     path::{Path, PathBuf},
     rc::Rc,
     sync::Arc,
+    time::Duration,
 };
 use text::OffsetRangeExt;
-use ui::{Disclosure, Toggleable, prelude::*};
+use ui::{ButtonLike, Disclosure, TintColor, Toggleable, prelude::*};
 use util::{ResultExt, debug_panic, rel_path::RelPath};
 use workspace::{Workspace, notifications::NotifyResultExt as _};
 
-use crate::ui::MentionCrease;
-
 pub type MentionTask = Shared<Task<Result<Mention, String>>>;
 
 #[derive(Debug, Clone, Eq, PartialEq)]
@@ -755,8 +754,25 @@ fn render_fold_icon_button(
                 .update(cx, |editor, cx| editor.is_range_selected(&fold_range, cx))
                 .unwrap_or_default();
 
-            MentionCrease::new(fold_id, icon_path.clone(), label.clone())
-                .is_toggled(is_in_text_selection)
+            ButtonLike::new(fold_id)
+                .style(ButtonStyle::Filled)
+                .selected_style(ButtonStyle::Tinted(TintColor::Accent))
+                .toggle_state(is_in_text_selection)
+                .child(
+                    h_flex()
+                        .gap_1()
+                        .child(
+                            Icon::from_path(icon_path.clone())
+                                .size(IconSize::XSmall)
+                                .color(Color::Muted),
+                        )
+                        .child(
+                            Label::new(label.clone())
+                                .size(LabelSize::Small)
+                                .buffer_font(cx)
+                                .single_line(),
+                        ),
+                )
                 .into_any_element()
         }
     })
@@ -931,14 +947,12 @@ impl Render for LoadingContext {
             .editor
             .update(cx, |editor, cx| editor.is_range_selected(&self.range, cx))
             .unwrap_or_default();
-
-        let id = ElementId::from(("loading_context", self.id));
-
-        MentionCrease::new(id, self.icon.clone(), self.label.clone())
-            .is_toggled(is_in_text_selection)
-            .is_loading(self.loading.is_some())
-            .when_some(self.image.clone(), |this, image_task| {
-                this.image_preview(move |_, cx| {
+        ButtonLike::new(("loading-context", self.id))
+            .style(ButtonStyle::Filled)
+            .selected_style(ButtonStyle::Tinted(TintColor::Accent))
+            .toggle_state(is_in_text_selection)
+            .when_some(self.image.clone(), |el, image_task| {
+                el.hoverable_tooltip(move |_, cx| {
                     let image = image_task.peek().cloned().transpose().ok().flatten();
                     let image_task = image_task.clone();
                     cx.new::<ImageHover>(|cx| ImageHover {
@@ -957,6 +971,35 @@ impl Render for LoadingContext {
                     .into()
                 })
             })
+            .child(
+                h_flex()
+                    .gap_1()
+                    .child(
+                        Icon::from_path(self.icon.clone())
+                            .size(IconSize::XSmall)
+                            .color(Color::Muted),
+                    )
+                    .child(
+                        Label::new(self.label.clone())
+                            .size(LabelSize::Small)
+                            .buffer_font(cx)
+                            .single_line(),
+                    )
+                    .map(|el| {
+                        if self.loading.is_some() {
+                            el.with_animation(
+                                "loading-context-crease",
+                                Animation::new(Duration::from_secs(2))
+                                    .repeat()
+                                    .with_easing(pulsating_between(0.4, 0.8)),
+                                |label, delta| label.opacity(delta),
+                            )
+                            .into_any()
+                        } else {
+                            el.into_any()
+                        }
+                    }),
+            )
     }
 }
 

crates/agent_ui/src/profile_selector.rs

@@ -15,8 +15,8 @@ use std::{
     sync::{Arc, atomic::AtomicBool},
 };
 use ui::{
-    DocumentationAside, DocumentationSide, HighlightedLabel, KeyBinding, LabelSize, ListItem,
-    ListItemSpacing, PopoverMenuHandle, TintColor, Tooltip, prelude::*,
+    DocumentationAside, DocumentationEdge, DocumentationSide, HighlightedLabel, KeyBinding,
+    LabelSize, ListItem, ListItemSpacing, PopoverMenuHandle, TintColor, Tooltip, prelude::*,
 };
 
 /// Trait for types that can provide and manage agent profiles
@@ -244,7 +244,6 @@ pub(crate) struct ProfilePickerDelegate {
     string_candidates: Arc<Vec<StringMatchCandidate>>,
     filtered_entries: Vec<ProfilePickerEntry>,
     selected_index: usize,
-    hovered_index: Option<usize>,
     query: String,
     cancel: Option<Arc<AtomicBool>>,
     focus_handle: FocusHandle,
@@ -271,7 +270,6 @@ impl ProfilePickerDelegate {
             string_candidates,
             filtered_entries,
             selected_index: 0,
-            hovered_index: None,
             query: String::new(),
             cancel: None,
             focus_handle,
@@ -580,38 +578,23 @@ impl PickerDelegate for ProfilePickerDelegate {
                 let candidate = self.candidates.get(entry.candidate_index)?;
                 let active_id = self.provider.profile_id(cx);
                 let is_active = active_id == candidate.id;
-                let has_documentation = Self::documentation(candidate).is_some();
 
                 Some(
-                    div()
-                        .id(("profile-picker-item", ix))
-                        .when(has_documentation, |this| {
-                            this.on_hover(cx.listener(move |picker, hovered, _, cx| {
-                                if *hovered {
-                                    picker.delegate.hovered_index = Some(ix);
-                                } else if picker.delegate.hovered_index == Some(ix) {
-                                    picker.delegate.hovered_index = None;
-                                }
-                                cx.notify();
-                            }))
+                    ListItem::new(candidate.id.0.clone())
+                        .inset(true)
+                        .spacing(ListItemSpacing::Sparse)
+                        .toggle_state(selected)
+                        .child(HighlightedLabel::new(
+                            candidate.name.clone(),
+                            entry.positions.clone(),
+                        ))
+                        .when(is_active, |this| {
+                            this.end_slot(
+                                div()
+                                    .pr_2()
+                                    .child(Icon::new(IconName::Check).color(Color::Accent)),
+                            )
                         })
-                        .child(
-                            ListItem::new(candidate.id.0.clone())
-                                .inset(true)
-                                .spacing(ListItemSpacing::Sparse)
-                                .toggle_state(selected)
-                                .child(HighlightedLabel::new(
-                                    candidate.name.clone(),
-                                    entry.positions.clone(),
-                                ))
-                                .when(is_active, |this| {
-                                    this.end_slot(
-                                        div()
-                                            .pr_2()
-                                            .child(Icon::new(IconName::Check).color(Color::Accent)),
-                                    )
-                                }),
-                        )
                         .into_any_element(),
                 )
             }
@@ -625,8 +608,7 @@ impl PickerDelegate for ProfilePickerDelegate {
     ) -> Option<DocumentationAside> {
         use std::rc::Rc;
 
-        let hovered_index = self.hovered_index?;
-        let entry = match self.filtered_entries.get(hovered_index)? {
+        let entry = match self.filtered_entries.get(self.selected_index)? {
             ProfilePickerEntry::Profile(entry) => entry,
             ProfilePickerEntry::Header(_) => return None,
         };
@@ -644,14 +626,11 @@ impl PickerDelegate for ProfilePickerDelegate {
 
         Some(DocumentationAside {
             side,
+            edge: DocumentationEdge::Top,
             render: Rc::new(move |_| Label::new(docs_aside.clone()).into_any_element()),
         })
     }
 
-    fn documentation_aside_index(&self) -> Option<usize> {
-        self.hovered_index
-    }
-
     fn render_footer(
         &self,
         _: &mut Window,
@@ -739,7 +718,6 @@ mod tests {
                 string_candidates: Arc::new(Vec::new()),
                 filtered_entries: Vec::new(),
                 selected_index: 0,
-                hovered_index: None,
                 query: String::new(),
                 cancel: None,
                 focus_handle,
@@ -774,7 +752,6 @@ mod tests {
                 background: cx.background_executor().clone(),
                 candidates,
                 string_candidates: Arc::new(Vec::new()),
-                hovered_index: None,
                 filtered_entries: vec![
                     ProfilePickerEntry::Profile(ProfileMatchEntry {
                         candidate_index: 0,

crates/agent_ui/src/text_thread_editor.rs

@@ -1,8 +1,8 @@
 use crate::{
     language_model_selector::{LanguageModelSelector, language_model_selector},
-    ui::{BurnModeTooltip, ModelSelectorTooltip},
+    ui::BurnModeTooltip,
 };
-use agent_settings::CompletionMode;
+use agent_settings::{AgentSettings, CompletionMode};
 use anyhow::Result;
 use assistant_slash_command::{SlashCommand, SlashCommandOutputSection, SlashCommandWorkingSet};
 use assistant_slash_commands::{DefaultSlashCommand, FileSlashCommand, selections_creases};
@@ -2252,18 +2252,43 @@ impl TextThreadEditor {
         .color(color)
         .size(IconSize::XSmall);
 
-        let show_cycle_row = self
-            .language_model_selector
-            .read(cx)
-            .delegate
-            .favorites_count()
-            > 1;
-
         let tooltip = Tooltip::element({
-            move |_, _cx| {
-                ModelSelectorTooltip::new(focus_handle.clone())
-                    .show_cycle_row(show_cycle_row)
-                    .into_any_element()
+            move |_, cx| {
+                let focus_handle = focus_handle.clone();
+                let should_show_cycle_row = !AgentSettings::get_global(cx)
+                    .favorite_model_ids()
+                    .is_empty();
+
+                v_flex()
+                    .gap_1()
+                    .child(
+                        h_flex()
+                            .gap_2()
+                            .justify_between()
+                            .child(Label::new("Change Model"))
+                            .child(KeyBinding::for_action_in(
+                                &ToggleModelSelector,
+                                &focus_handle,
+                                cx,
+                            )),
+                    )
+                    .when(should_show_cycle_row, |this| {
+                        this.child(
+                            h_flex()
+                                .pt_1()
+                                .gap_2()
+                                .border_t_1()
+                                .border_color(cx.theme().colors().border_variant)
+                                .justify_between()
+                                .child(Label::new("Cycle Favorited Models"))
+                                .child(KeyBinding::for_action_in(
+                                    &CycleFavoriteModels,
+                                    &focus_handle,
+                                    cx,
+                                )),
+                        )
+                    })
+                    .into_any()
             }
         });
 

crates/agent_ui/src/ui.rs

@@ -4,7 +4,6 @@ mod burn_mode_tooltip;
 mod claude_code_onboarding_modal;
 mod end_trial_upsell;
 mod hold_for_default;
-mod mention_crease;
 mod model_selector_components;
 mod onboarding_modal;
 mod usage_callout;
@@ -15,7 +14,6 @@ pub use burn_mode_tooltip::*;
 pub use claude_code_onboarding_modal::*;
 pub use end_trial_upsell::*;
 pub use hold_for_default::*;
-pub use mention_crease::*;
 pub use model_selector_components::*;
 pub use onboarding_modal::*;
 pub use usage_callout::*;

crates/agent_ui/src/ui/hold_for_default.rs

@@ -27,7 +27,7 @@ impl RenderOnce for HoldForDefault {
                 PlatformStyle::platform(),
                 None,
                 Some(TextSize::Default.rems(cx).into()),
-                false,
+                true,
             )))
             .child(div().map(|this| {
                 if self.is_default {

crates/agent_ui/src/ui/mention_crease.rs

@@ -1,100 +0,0 @@
-use std::time::Duration;
-
-use gpui::{Animation, AnimationExt, AnyView, IntoElement, Window, pulsating_between};
-use settings::Settings;
-use theme::ThemeSettings;
-use ui::{ButtonLike, TintColor, prelude::*};
-
-#[derive(IntoElement)]
-pub struct MentionCrease {
-    id: ElementId,
-    icon: SharedString,
-    label: SharedString,
-    is_toggled: bool,
-    is_loading: bool,
-    image_preview: Option<Box<dyn Fn(&mut Window, &mut App) -> AnyView + 'static>>,
-}
-
-impl MentionCrease {
-    pub fn new(
-        id: impl Into<ElementId>,
-        icon: impl Into<SharedString>,
-        label: impl Into<SharedString>,
-    ) -> Self {
-        Self {
-            id: id.into(),
-            icon: icon.into(),
-            label: label.into(),
-            is_toggled: false,
-            is_loading: false,
-            image_preview: None,
-        }
-    }
-
-    pub fn is_toggled(mut self, is_toggled: bool) -> Self {
-        self.is_toggled = is_toggled;
-        self
-    }
-
-    pub fn is_loading(mut self, is_loading: bool) -> Self {
-        self.is_loading = is_loading;
-        self
-    }
-
-    pub fn image_preview(
-        mut self,
-        builder: impl Fn(&mut Window, &mut App) -> AnyView + 'static,
-    ) -> Self {
-        self.image_preview = Some(Box::new(builder));
-        self
-    }
-}
-
-impl RenderOnce for MentionCrease {
-    fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement {
-        let settings = ThemeSettings::get_global(cx);
-        let font_size = settings.agent_buffer_font_size(cx);
-        let buffer_font = settings.buffer_font.clone();
-
-        let button_height = DefiniteLength::Absolute(AbsoluteLength::Pixels(
-            px(window.line_height().into()) - px(1.),
-        ));
-
-        ButtonLike::new(self.id)
-            .style(ButtonStyle::Outlined)
-            .size(ButtonSize::Compact)
-            .height(button_height)
-            .selected_style(ButtonStyle::Tinted(TintColor::Accent))
-            .toggle_state(self.is_toggled)
-            .when_some(self.image_preview, |this, image_preview| {
-                this.hoverable_tooltip(image_preview)
-            })
-            .child(
-                h_flex()
-                    .pb_px()
-                    .gap_1()
-                    .font(buffer_font)
-                    .text_size(font_size)
-                    .child(
-                        Icon::from_path(self.icon.clone())
-                            .size(IconSize::XSmall)
-                            .color(Color::Muted),
-                    )
-                    .child(self.label.clone())
-                    .map(|this| {
-                        if self.is_loading {
-                            this.with_animation(
-                                "loading-context-crease",
-                                Animation::new(Duration::from_secs(2))
-                                    .repeat()
-                                    .with_easing(pulsating_between(0.4, 0.8)),
-                                |label, delta| label.opacity(delta),
-                            )
-                            .into_any()
-                        } else {
-                            this.into_any()
-                        }
-                    }),
-            )
-    }
-}

crates/agent_ui/src/ui/model_selector_components.rs

@@ -1,8 +1,5 @@
-use gpui::{Action, ClickEvent, FocusHandle, prelude::*};
+use gpui::{Action, FocusHandle, prelude::*};
 use ui::{ElevationIndex, KeyBinding, ListItem, ListItemSpacing, Tooltip, prelude::*};
-use zed_actions::agent::ToggleModelSelector;
-
-use crate::CycleFavoriteModels;
 
 enum ModelIcon {
     Name(IconName),
@@ -51,7 +48,7 @@ pub struct ModelSelectorListItem {
     is_selected: bool,
     is_focused: bool,
     is_favorite: bool,
-    on_toggle_favorite: Option<Box<dyn Fn(&ClickEvent, &mut Window, &mut App) + 'static>>,
+    on_toggle_favorite: Option<Box<dyn Fn(&App) + 'static>>,
 }
 
 impl ModelSelectorListItem {
@@ -92,10 +89,7 @@ impl ModelSelectorListItem {
         self
     }
 
-    pub fn on_toggle_favorite(
-        mut self,
-        handler: impl Fn(&ClickEvent, &mut Window, &mut App) + 'static,
-    ) -> Self {
+    pub fn on_toggle_favorite(mut self, handler: impl Fn(&App) + 'static) -> Self {
         self.on_toggle_favorite = Some(Box::new(handler));
         self
     }
@@ -147,7 +141,7 @@ impl RenderOnce for ModelSelectorListItem {
                             .icon_color(color)
                             .icon_size(IconSize::Small)
                             .tooltip(Tooltip::text(tooltip))
-                            .on_click(move |event, window, cx| (handle_click)(event, window, cx)),
+                            .on_click(move |_, _, cx| (handle_click)(cx)),
                     )
                 }
             }))
@@ -193,57 +187,3 @@ impl RenderOnce for ModelSelectorFooter {
             )
     }
 }
-
-#[derive(IntoElement)]
-pub struct ModelSelectorTooltip {
-    focus_handle: FocusHandle,
-    show_cycle_row: bool,
-}
-
-impl ModelSelectorTooltip {
-    pub fn new(focus_handle: FocusHandle) -> Self {
-        Self {
-            focus_handle,
-            show_cycle_row: true,
-        }
-    }
-
-    pub fn show_cycle_row(mut self, show: bool) -> Self {
-        self.show_cycle_row = show;
-        self
-    }
-}
-
-impl RenderOnce for ModelSelectorTooltip {
-    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
-        v_flex()
-            .gap_1()
-            .child(
-                h_flex()
-                    .gap_2()
-                    .justify_between()
-                    .child(Label::new("Change Model"))
-                    .child(KeyBinding::for_action_in(
-                        &ToggleModelSelector,
-                        &self.focus_handle,
-                        cx,
-                    )),
-            )
-            .when(self.show_cycle_row, |this| {
-                this.child(
-                    h_flex()
-                        .pt_1()
-                        .gap_2()
-                        .border_t_1()
-                        .border_color(cx.theme().colors().border_variant)
-                        .justify_between()
-                        .child(Label::new("Cycle Favorited Models"))
-                        .child(KeyBinding::for_action_in(
-                            &CycleFavoriteModels,
-                            &self.focus_handle,
-                            cx,
-                        )),
-                )
-            })
-    }
-}

crates/buffer_diff/Cargo.toml

@@ -15,6 +15,7 @@ path = "src/buffer_diff.rs"
 test-support = ["settings"]
 
 [dependencies]
+anyhow.workspace = true
 clock.workspace = true
 futures.workspace = true
 git2.workspace = true

crates/collab/src/api/contributors.rs

@@ -113,7 +113,7 @@ impl CopilotSweAgentBot {
     const USER_ID: i32 = 198982749;
     /// The alias of the GitHub copilot user. Although https://api.github.com/users/copilot
     /// yields a 404, GitHub still refers to the copilot bot user as @Copilot in some cases.
-    const NAME_ALIAS: &'static str = "Copilot";
+    const NAME_ALIAS: &'static str = "copilot";
 
     /// Returns the `created_at` timestamp for the Dependabot bot user.
     fn created_at() -> &'static NaiveDateTime {

crates/collab/src/tests/integration_tests.rs

@@ -2647,13 +2647,13 @@ async fn test_git_diff_base_change(
     local_unstaged_diff_a.read_with(cx_a, |diff, cx| {
         let buffer = buffer_local_a.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(1..2, "", "two\n", DiffHunkStatus::added_none())],
         );
     });
@@ -2677,13 +2677,13 @@ async fn test_git_diff_base_change(
     remote_unstaged_diff_a.read_with(cx_b, |diff, cx| {
         let buffer = remote_buffer_a.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(1..2, "", "two\n", DiffHunkStatus::added_none())],
         );
     });
@@ -2699,13 +2699,13 @@ async fn test_git_diff_base_change(
     remote_uncommitted_diff_a.read_with(cx_b, |diff, cx| {
         let buffer = remote_buffer_a.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(committed_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(
                 1..2,
                 "TWO\n",
@@ -2731,13 +2731,13 @@ async fn test_git_diff_base_change(
     local_unstaged_diff_a.read_with(cx_a, |diff, cx| {
         let buffer = buffer_local_a.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(new_staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(2..3, "", "three\n", DiffHunkStatus::added_none())],
         );
     });
@@ -2746,13 +2746,13 @@ async fn test_git_diff_base_change(
     remote_unstaged_diff_a.read_with(cx_b, |diff, cx| {
         let buffer = remote_buffer_a.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(new_staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(2..3, "", "three\n", DiffHunkStatus::added_none())],
         );
     });
@@ -2760,13 +2760,13 @@ async fn test_git_diff_base_change(
     remote_uncommitted_diff_a.read_with(cx_b, |diff, cx| {
         let buffer = remote_buffer_a.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(new_committed_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(
                 1..2,
                 "TWO_HUNDRED\n",
@@ -2813,13 +2813,13 @@ async fn test_git_diff_base_change(
     local_unstaged_diff_b.read_with(cx_a, |diff, cx| {
         let buffer = buffer_local_b.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
-            &diff.base_text_string(cx).unwrap(),
+            &diff.base_text_string().unwrap(),
             &[(1..2, "", "two\n", DiffHunkStatus::added_none())],
         );
     });
@@ -2842,11 +2842,11 @@ async fn test_git_diff_base_change(
     remote_unstaged_diff_b.read_with(cx_b, |diff, cx| {
         let buffer = remote_buffer_b.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
             &staged_text,
             &[(1..2, "", "two\n", DiffHunkStatus::added_none())],
@@ -2864,11 +2864,11 @@ async fn test_git_diff_base_change(
     local_unstaged_diff_b.read_with(cx_a, |diff, cx| {
         let buffer = buffer_local_b.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(new_staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
             &new_staged_text,
             &[(2..3, "", "three\n", DiffHunkStatus::added_none())],
@@ -2878,11 +2878,11 @@ async fn test_git_diff_base_change(
     remote_unstaged_diff_b.read_with(cx_b, |diff, cx| {
         let buffer = remote_buffer_b.read(cx);
         assert_eq!(
-            diff.base_text_string(cx).as_deref(),
+            diff.base_text_string().as_deref(),
             Some(new_staged_text.as_str())
         );
         assert_hunks(
-            diff.snapshot(cx).hunks_in_row_range(0..4, buffer),
+            diff.hunks_in_row_range(0..4, buffer, cx),
             buffer,
             &new_staged_text,
             &[(2..3, "", "three\n", DiffHunkStatus::added_none())],
@@ -5195,7 +5195,7 @@ async fn test_project_search(
             cx,
         )
     });
-    while let Ok(result) = search_rx.rx.recv().await {
+    while let Ok(result) = search_rx.recv().await {
         match result {
             SearchResult::Buffer { buffer, ranges } => {
                 results.entry(buffer).or_insert(ranges);
@@ -6745,13 +6745,8 @@ async fn test_preview_tabs(cx: &mut TestAppContext) {
     });
 
     // Split pane to the right
-    pane.update_in(cx, |pane, window, cx| {
-        pane.split(
-            workspace::SplitDirection::Right,
-            workspace::SplitMode::default(),
-            window,
-            cx,
-        );
+    pane.update(cx, |pane, cx| {
+        pane.split(workspace::SplitDirection::Right, cx);
     });
     cx.run_until_parked();
     let right_pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());

crates/collab/src/tests/random_project_collaboration_tests.rs

@@ -905,7 +905,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                 drop(project);
                 let search = cx.executor().spawn(async move {
                     let mut results = HashMap::default();
-                    while let Ok(result) = search.rx.recv().await {
+                    while let Ok(result) = search.recv().await {
                         if let SearchResult::Buffer { buffer, ranges } = result {
                             results.entry(buffer).or_insert(ranges);
                         }
@@ -1377,7 +1377,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                             .get_unstaged_diff(host_buffer.read(cx).remote_id(), cx)
                             .unwrap()
                             .read(cx)
-                            .base_text_string(cx)
+                            .base_text_string()
                     });
                     let guest_diff_base = guest_project.read_with(client_cx, |project, cx| {
                         project
@@ -1386,7 +1386,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                             .get_unstaged_diff(guest_buffer.read(cx).remote_id(), cx)
                             .unwrap()
                             .read(cx)
-                            .base_text_string(cx)
+                            .base_text_string()
                     });
                     assert_eq!(
                         guest_diff_base, host_diff_base,

crates/collab/src/tests/remote_editing_collaboration_tests.rs

@@ -855,6 +855,8 @@ async fn test_slow_adapter_startup_retries(
 
 #[gpui::test]
 async fn test_ssh_remote_worktree_trust(cx_a: &mut TestAppContext, server_cx: &mut TestAppContext) {
+    use project::trusted_worktrees::RemoteHostLocation;
+
     cx_a.update(|cx| {
         release_channel::init(semver::Version::new(0, 0, 0), cx);
         project::trusted_worktrees::init(HashMap::default(), None, None, cx);
@@ -989,19 +991,23 @@ async fn test_ssh_remote_worktree_trust(cx_a: &mut TestAppContext, server_cx: &m
     });
     assert_eq!(worktree_ids.len(), 2);
 
+    let remote_host = project_a.read_with(cx_a, |project, cx| {
+        project
+            .remote_connection_options(cx)
+            .map(RemoteHostLocation::from)
+    });
+
     let trusted_worktrees =
         cx_a.update(|cx| TrustedWorktrees::try_get_global(cx).expect("trust global should exist"));
-    let worktree_store = project_a.read_with(cx_a, |project, _| project.worktree_store());
 
-    let can_trust_a = trusted_worktrees.update(cx_a, |store, cx| {
-        store.can_trust(&worktree_store, worktree_ids[0], cx)
-    });
-    let can_trust_b = trusted_worktrees.update(cx_a, |store, cx| {
-        store.can_trust(&worktree_store, worktree_ids[1], cx)
-    });
+    let can_trust_a =
+        trusted_worktrees.update(cx_a, |store, cx| store.can_trust(worktree_ids[0], cx));
+    let can_trust_b =
+        trusted_worktrees.update(cx_a, |store, cx| store.can_trust(worktree_ids[1], cx));
     assert!(!can_trust_a, "project_a should be restricted initially");
     assert!(!can_trust_b, "project_b should be restricted initially");
 
+    let worktree_store = project_a.read_with(cx_a, |project, _| project.worktree_store());
     let has_restricted = trusted_worktrees.read_with(cx_a, |store, cx| {
         store.has_restricted_worktrees(&worktree_store, cx)
     });
@@ -1048,8 +1054,8 @@ async fn test_ssh_remote_worktree_trust(cx_a: &mut TestAppContext, server_cx: &m
 
     trusted_worktrees.update(cx_a, |store, cx| {
         store.trust(
-            &worktree_store,
             HashSet::from_iter([PathTrust::Worktree(worktree_ids[0])]),
+            remote_host.clone(),
             cx,
         );
     });
@@ -1074,29 +1080,25 @@ async fn test_ssh_remote_worktree_trust(cx_a: &mut TestAppContext, server_cx: &m
         "inlay hints should be queried after trust approval"
     );
 
-    let can_trust_a = trusted_worktrees.update(cx_a, |store, cx| {
-        store.can_trust(&worktree_store, worktree_ids[0], cx)
-    });
-    let can_trust_b = trusted_worktrees.update(cx_a, |store, cx| {
-        store.can_trust(&worktree_store, worktree_ids[1], cx)
-    });
+    let can_trust_a =
+        trusted_worktrees.update(cx_a, |store, cx| store.can_trust(worktree_ids[0], cx));
+    let can_trust_b =
+        trusted_worktrees.update(cx_a, |store, cx| store.can_trust(worktree_ids[1], cx));
     assert!(can_trust_a, "project_a should be trusted after trust()");
     assert!(!can_trust_b, "project_b should still be restricted");
 
     trusted_worktrees.update(cx_a, |store, cx| {
         store.trust(
-            &worktree_store,
             HashSet::from_iter([PathTrust::Worktree(worktree_ids[1])]),
+            remote_host.clone(),
             cx,
         );
     });
 
-    let can_trust_a = trusted_worktrees.update(cx_a, |store, cx| {
-        store.can_trust(&worktree_store, worktree_ids[0], cx)
-    });
-    let can_trust_b = trusted_worktrees.update(cx_a, |store, cx| {
-        store.can_trust(&worktree_store, worktree_ids[1], cx)
-    });
+    let can_trust_a =
+        trusted_worktrees.update(cx_a, |store, cx| store.can_trust(worktree_ids[0], cx));
+    let can_trust_b =
+        trusted_worktrees.update(cx_a, |store, cx| store.can_trust(worktree_ids[1], cx));
     assert!(can_trust_a, "project_a should remain trusted");
     assert!(can_trust_b, "project_b should now be trusted");
 

crates/collab_ui/src/collab_panel.rs

@@ -31,9 +31,9 @@ use smallvec::SmallVec;
 use std::{mem, sync::Arc};
 use theme::{ActiveTheme, ThemeSettings};
 use ui::{
-    Avatar, AvatarAvailabilityIndicator, Button, Color, ContextMenu, CopyButton, Facepile,
-    HighlightedLabel, Icon, IconButton, IconName, IconSize, Indicator, Label, ListHeader, ListItem,
-    Tab, Tooltip, prelude::*, tooltip_container,
+    Avatar, AvatarAvailabilityIndicator, Button, Color, ContextMenu, Facepile, HighlightedLabel,
+    Icon, IconButton, IconName, IconSize, Indicator, Label, ListHeader, ListItem, Tab, Tooltip,
+    prelude::*, tooltip_container,
 };
 use util::{ResultExt, TryFutureExt, maybe};
 use workspace::{
@@ -2527,9 +2527,16 @@ impl CollabPanel {
 
         let button = match section {
             Section::ActiveCall => channel_link.map(|channel_link| {
-                CopyButton::new(channel_link)
+                let channel_link_copy = channel_link;
+                IconButton::new("channel-link", IconName::Copy)
+                    .icon_size(IconSize::Small)
+                    .size(ButtonSize::None)
                     .visible_on_hover("section-header")
-                    .tooltip_label("Copy Channel Link")
+                    .on_click(move |_, _, cx| {
+                        let item = ClipboardItem::new_string(channel_link_copy.clone());
+                        cx.write_to_clipboard(item)
+                    })
+                    .tooltip(Tooltip::text("Copy channel link"))
                     .into_any_element()
             }),
             Section::Contacts => Some(

crates/component_preview/Cargo.toml

@@ -1,45 +0,0 @@
-[package]
-name = "component_preview"
-version = "0.1.0"
-edition.workspace = true
-publish.workspace = true
-license = "GPL-3.0-or-later"
-
-[lints]
-workspace = true
-
-[lib]
-path = "src/component_preview.rs"
-
-[features]
-default = []
-preview = []
-test-support = ["db/test-support"]
-
-[dependencies]
-anyhow.workspace = true
-client.workspace = true
-collections.workspace = true
-component.workspace = true
-db.workspace = true
-fs.workspace = true
-gpui.workspace = true
-language.workspace = true
-log.workspace = true
-node_runtime.workspace = true
-notifications.workspace = true
-project.workspace = true
-release_channel.workspace = true
-reqwest_client.workspace = true
-session.workspace = true
-settings.workspace = true
-theme.workspace = true
-ui.workspace = true
-ui_input.workspace = true
-uuid.workspace = true
-workspace.workspace = true
-
-[[example]]
-name = "component_preview"
-path = "examples/component_preview.rs"
-required-features = ["preview"]

crates/component_preview/LICENSE-GPL

@@ -1 +0,0 @@
-LICENSE-GPL

crates/component_preview/examples/component_preview.rs

@@ -1,18 +0,0 @@
-//! Component Preview Example
-//!
-//! Run with: `cargo run -p component_preview --example component_preview --features="preview"`
-//!
-//! To use this in other projects, add the following to your `Cargo.toml`:
-//!
-//! ```toml
-//! [dependencies]
-//! component_preview = { path = "../component_preview", features = ["preview"] }
-//!
-//! [[example]]
-//! name = "component_preview"
-//! path = "examples/component_preview.rs"
-//! ```
-
-fn main() {
-    component_preview::run_component_preview();
-}

crates/component_preview/src/component_preview_example.rs

@@ -1,145 +0,0 @@
-/// Run the component preview application.
-///
-/// This initializes the application with minimal required infrastructure
-/// and opens a workspace with the ComponentPreview item.
-#[cfg(feature = "preview")]
-pub fn run_component_preview() {
-    use fs::RealFs;
-    use gpui::{
-        AppContext as _, Application, Bounds, KeyBinding, WindowBounds, WindowOptions, actions,
-        size,
-    };
-
-    use client::{Client, UserStore};
-    use language::LanguageRegistry;
-    use node_runtime::NodeRuntime;
-    use project::Project;
-    use reqwest_client::ReqwestClient;
-    use session::{AppSession, Session};
-    use std::sync::Arc;
-    use ui::{App, px};
-    use workspace::{AppState, Workspace, WorkspaceStore};
-
-    use crate::{ComponentPreview, init};
-
-    actions!(zed, [Quit]);
-
-    fn quit(_: &Quit, cx: &mut App) {
-        cx.quit();
-    }
-
-    Application::new().run(|cx| {
-        component::init();
-
-        cx.on_action(quit);
-        cx.bind_keys([KeyBinding::new("cmd-q", Quit, None)]);
-        let version = release_channel::AppVersion::load(env!("CARGO_PKG_VERSION"), None, None);
-        release_channel::init(version, cx);
-
-        let http_client =
-            ReqwestClient::user_agent("component_preview").expect("Failed to create HTTP client");
-        cx.set_http_client(Arc::new(http_client));
-
-        let fs = Arc::new(RealFs::new(None, cx.background_executor().clone()));
-        <dyn fs::Fs>::set_global(fs.clone(), cx);
-
-        settings::init(cx);
-        theme::init(theme::LoadThemes::JustBase, cx);
-
-        let languages = Arc::new(LanguageRegistry::new(cx.background_executor().clone()));
-        let client = Client::production(cx);
-        client::init(&client, cx);
-
-        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
-        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
-        let session_id = uuid::Uuid::new_v4().to_string();
-        let session = cx.background_executor().block(Session::new(session_id));
-        let session = cx.new(|cx| AppSession::new(session, cx));
-        let node_runtime = NodeRuntime::unavailable();
-
-        let app_state = Arc::new(AppState {
-            languages,
-            client,
-            user_store,
-            workspace_store,
-            fs,
-            build_window_options: |_, _| Default::default(),
-            node_runtime,
-            session,
-        });
-        AppState::set_global(Arc::downgrade(&app_state), cx);
-
-        workspace::init(app_state.clone(), cx);
-        init(app_state.clone(), cx);
-
-        let size = size(px(1200.), px(800.));
-        let bounds = Bounds::centered(None, size, cx);
-
-        cx.open_window(
-            WindowOptions {
-                window_bounds: Some(WindowBounds::Windowed(bounds)),
-                ..Default::default()
-            },
-            {
-                move |window, cx| {
-                    let app_state = app_state;
-                    theme::setup_ui_font(window, cx);
-
-                    let project = Project::local(
-                        app_state.client.clone(),
-                        app_state.node_runtime.clone(),
-                        app_state.user_store.clone(),
-                        app_state.languages.clone(),
-                        app_state.fs.clone(),
-                        None,
-                        false,
-                        cx,
-                    );
-
-                    let workspace = cx.new(|cx| {
-                        Workspace::new(
-                            Default::default(),
-                            project.clone(),
-                            app_state.clone(),
-                            window,
-                            cx,
-                        )
-                    });
-
-                    workspace.update(cx, |workspace, cx| {
-                        let weak_workspace = cx.entity().downgrade();
-                        let language_registry = app_state.languages.clone();
-                        let user_store = app_state.user_store.clone();
-
-                        let component_preview = cx.new(|cx| {
-                            ComponentPreview::new(
-                                weak_workspace,
-                                project,
-                                language_registry,
-                                user_store,
-                                None,
-                                None,
-                                window,
-                                cx,
-                            )
-                            .expect("Failed to create component preview")
-                        });
-
-                        workspace.add_item_to_active_pane(
-                            Box::new(component_preview),
-                            None,
-                            true,
-                            window,
-                            cx,
-                        );
-                    });
-
-                    workspace
-                }
-            },
-        )
-        .expect("Failed to open component preview window");
-
-        cx.activate(true);
-    });
-}

crates/context_server/src/transport/stdio_transport.rs

@@ -34,7 +34,7 @@ impl StdioTransport {
         let shell = cx.update(|cx| TerminalSettings::get(None, cx).shell.clone())?;
         let builder = ShellBuilder::new(&shell, cfg!(windows)).non_interactive();
         let mut command =
-            builder.build_smol_command(Some(binary.executable.display().to_string()), &binary.args);
+            builder.build_command(Some(binary.executable.display().to_string()), &binary.args);
 
         command
             .envs(binary.env.unwrap_or_default())

crates/dap/src/transport.rs

@@ -24,7 +24,7 @@ use std::{
     time::Duration,
 };
 use task::TcpArgumentsTemplate;
-use util::{ConnectionResult, ResultExt, process::Child};
+use util::ConnectionResult;
 
 use crate::{
     adapters::{DebugAdapterBinary, TcpArguments},
@@ -528,7 +528,7 @@ impl TcpTransport {
             command.args(&binary.arguments);
             command.envs(&binary.envs);
 
-            let mut p = Child::spawn(command, Stdio::null(), Stdio::piped(), Stdio::piped())
+            let mut p = Child::spawn(command, Stdio::null())
                 .with_context(|| "failed to start debug adapter.")?;
 
             stdout_task = p.stdout.take().map(|stdout| {
@@ -582,7 +582,7 @@ impl Transport for TcpTransport {
 
     fn kill(&mut self) {
         if let Some(process) = &mut *self.process.lock() {
-            process.kill().log_err();
+            process.kill();
         }
     }
 
@@ -647,7 +647,7 @@ impl Transport for TcpTransport {
 impl Drop for TcpTransport {
     fn drop(&mut self) {
         if let Some(mut p) = self.process.lock().take() {
-            p.kill().log_err();
+            p.kill()
         }
     }
 }
@@ -678,7 +678,7 @@ impl StdioTransport {
         command.args(&binary.arguments);
         command.envs(&binary.envs);
 
-        let mut process = Child::spawn(command, Stdio::piped(), Stdio::piped(), Stdio::piped())?;
+        let mut process = Child::spawn(command, Stdio::piped())?;
 
         let _stderr_task = process.stderr.take().map(|stderr| {
             cx.background_spawn(TransportDelegate::handle_adapter_log(
@@ -703,7 +703,7 @@ impl Transport for StdioTransport {
     }
 
     fn kill(&mut self) {
-        self.process.lock().kill().log_err();
+        self.process.lock().kill();
     }
 
     fn connect(
@@ -731,7 +731,7 @@ impl Transport for StdioTransport {
 
 impl Drop for StdioTransport {
     fn drop(&mut self) {
-        self.process.lock().kill().log_err();
+        self.process.lock().kill();
     }
 }
 
@@ -1024,3 +1024,68 @@ impl Transport for FakeTransport {
         self
     }
 }
+
+struct Child {
+    process: smol::process::Child,
+}
+
+impl std::ops::Deref for Child {
+    type Target = smol::process::Child;
+
+    fn deref(&self) -> &Self::Target {
+        &self.process
+    }
+}
+
+impl std::ops::DerefMut for Child {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.process
+    }
+}
+
+impl Child {
+    fn into_inner(self) -> smol::process::Child {
+        self.process
+    }
+
+    #[cfg(not(windows))]
+    fn spawn(mut command: std::process::Command, stdin: Stdio) -> Result<Self> {
+        util::set_pre_exec_to_start_new_session(&mut command);
+        let mut command = smol::process::Command::from(command);
+        let process = command
+            .stdin(stdin)
+            .stdout(Stdio::piped())
+            .stderr(Stdio::piped())
+            .spawn()
+            .with_context(|| format!("failed to spawn command `{command:?}`",))?;
+        Ok(Self { process })
+    }
+
+    #[cfg(windows)]
+    fn spawn(command: std::process::Command, stdin: Stdio) -> Result<Self> {
+        // TODO(windows): create a job object and add the child process handle to it,
+        // see https://learn.microsoft.com/en-us/windows/win32/procthread/job-objects
+        let mut command = smol::process::Command::from(command);
+        let process = command
+            .stdin(stdin)
+            .stdout(Stdio::piped())
+            .stderr(Stdio::piped())
+            .spawn()
+            .with_context(|| format!("failed to spawn command `{command:?}`",))?;
+        Ok(Self { process })
+    }
+
+    #[cfg(not(windows))]
+    fn kill(&mut self) {
+        let pid = self.process.id();
+        unsafe {
+            libc::killpg(pid as i32, libc::SIGKILL);
+        }
+    }
+
+    #[cfg(windows)]
+    fn kill(&mut self) {
+        // TODO(windows): terminate the job object in kill
+        let _ = self.process.kill();
+    }
+}

crates/debugger_ui/src/debugger_panel.rs

@@ -1579,10 +1579,8 @@ impl Panel for DebugPanel {
         Some(proto::PanelId::DebugPanel)
     }
 
-    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
-        DebuggerSettings::get_global(cx)
-            .button
-            .then_some(IconName::Debug)
+    fn icon(&self, _window: &Window, _cx: &App) -> Option<IconName> {
+        Some(IconName::Debug)
     }
 
     fn icon_tooltip(&self, _window: &Window, cx: &App) -> Option<&'static str> {

crates/edit_prediction/Cargo.toml

@@ -19,7 +19,6 @@ ai_onboarding.workspace = true
 anyhow.workspace = true
 arrayvec.workspace = true
 brotli.workspace = true
-buffer_diff.workspace = true
 client.workspace = true
 cloud_llm_client.workspace = true
 collections.workspace = true
@@ -53,9 +52,7 @@ settings.workspace = true
 strum.workspace = true
 telemetry.workspace = true
 telemetry_events.workspace = true
-text.workspace = true
 thiserror.workspace = true
-time.workspace = true
 ui.workspace = true
 util.workspace = true
 uuid.workspace = true

crates/edit_prediction/src/capture_example.rs

@@ -1,375 +0,0 @@
-use crate::{
-    EditPredictionStore, StoredEvent,
-    cursor_excerpt::editable_and_context_ranges_for_cursor_position, example_spec::ExampleSpec,
-};
-use anyhow::Result;
-use buffer_diff::BufferDiffSnapshot;
-use collections::HashMap;
-use gpui::{App, Entity, Task};
-use language::{Buffer, ToPoint as _};
-use project::Project;
-use std::{collections::hash_map, fmt::Write as _, path::Path, sync::Arc};
-use text::{BufferSnapshot as TextBufferSnapshot, ToOffset as _};
-
-pub fn capture_example(
-    project: Entity<Project>,
-    buffer: Entity<Buffer>,
-    cursor_anchor: language::Anchor,
-    last_event_is_expected_patch: bool,
-    cx: &mut App,
-) -> Option<Task<Result<ExampleSpec>>> {
-    let ep_store = EditPredictionStore::try_global(cx)?;
-    let snapshot = buffer.read(cx).snapshot();
-    let file = snapshot.file()?;
-    let worktree_id = file.worktree_id(cx);
-    let repository = project.read(cx).active_repository(cx)?;
-    let repository_snapshot = repository.read(cx).snapshot();
-    let worktree = project.read(cx).worktree_for_id(worktree_id, cx)?;
-    let cursor_path = worktree.read(cx).root_name().join(file.path());
-    if worktree.read(cx).abs_path() != repository_snapshot.work_directory_abs_path {
-        return None;
-    }
-
-    let repository_url = repository_snapshot
-        .remote_origin_url
-        .clone()
-        .or_else(|| repository_snapshot.remote_upstream_url.clone())?;
-    let revision = repository_snapshot.head_commit.as_ref()?.sha.to_string();
-
-    let mut events = ep_store.update(cx, |store, cx| {
-        store.edit_history_for_project_with_pause_split_last_event(&project, cx)
-    });
-
-    let git_store = project.read(cx).git_store().clone();
-
-    Some(cx.spawn(async move |mut cx| {
-        let snapshots_by_path = collect_snapshots(&project, &git_store, &events, &mut cx).await?;
-        let cursor_excerpt = cx
-            .background_executor()
-            .spawn(async move { compute_cursor_excerpt(&snapshot, cursor_anchor) })
-            .await;
-        let uncommitted_diff = cx
-            .background_executor()
-            .spawn(async move { compute_uncommitted_diff(snapshots_by_path) })
-            .await;
-
-        let mut edit_history = String::new();
-        let mut expected_patch = String::new();
-        if last_event_is_expected_patch {
-            if let Some(stored_event) = events.pop() {
-                zeta_prompt::write_event(&mut expected_patch, &stored_event.event);
-            }
-        }
-
-        for stored_event in &events {
-            zeta_prompt::write_event(&mut edit_history, &stored_event.event);
-            if !edit_history.ends_with('\n') {
-                edit_history.push('\n');
-            }
-        }
-
-        let name = generate_timestamp_name();
-
-        Ok(ExampleSpec {
-            name,
-            repository_url,
-            revision,
-            uncommitted_diff,
-            cursor_path: cursor_path.as_std_path().into(),
-            cursor_position: cursor_excerpt,
-            edit_history,
-            expected_patch,
-        })
-    }))
-}
-
-fn compute_cursor_excerpt(
-    snapshot: &language::BufferSnapshot,
-    cursor_anchor: language::Anchor,
-) -> String {
-    let cursor_point = cursor_anchor.to_point(snapshot);
-    let (_editable_range, context_range) =
-        editable_and_context_ranges_for_cursor_position(cursor_point, snapshot, 100, 50);
-
-    let context_start_offset = context_range.start.to_offset(snapshot);
-    let cursor_offset = cursor_anchor.to_offset(snapshot);
-    let cursor_offset_in_excerpt = cursor_offset.saturating_sub(context_start_offset);
-    let mut excerpt = snapshot.text_for_range(context_range).collect::<String>();
-    if cursor_offset_in_excerpt <= excerpt.len() {
-        excerpt.insert_str(cursor_offset_in_excerpt, zeta_prompt::CURSOR_MARKER);
-    }
-    excerpt
-}
-
-async fn collect_snapshots(
-    project: &Entity<Project>,
-    git_store: &Entity<project::git_store::GitStore>,
-    events: &[StoredEvent],
-    cx: &mut gpui::AsyncApp,
-) -> Result<HashMap<Arc<Path>, (TextBufferSnapshot, BufferDiffSnapshot)>> {
-    let mut snapshots_by_path = HashMap::default();
-    for stored_event in events {
-        let zeta_prompt::Event::BufferChange { path, .. } = stored_event.event.as_ref();
-        if let Some((project_path, full_path)) = project.read_with(cx, |project, cx| {
-            let project_path = project.find_project_path(path, cx)?;
-            let full_path = project
-                .worktree_for_id(project_path.worktree_id, cx)?
-                .read(cx)
-                .root_name()
-                .join(&project_path.path)
-                .as_std_path()
-                .into();
-            Some((project_path, full_path))
-        })? {
-            if let hash_map::Entry::Vacant(entry) = snapshots_by_path.entry(full_path) {
-                let buffer = project
-                    .update(cx, |project, cx| {
-                        project.open_buffer(project_path.clone(), cx)
-                    })?
-                    .await?;
-                let diff = git_store
-                    .update(cx, |git_store, cx| {
-                        git_store.open_uncommitted_diff(buffer.clone(), cx)
-                    })?
-                    .await?;
-                let diff_snapshot = diff.update(cx, |diff, cx| diff.snapshot(cx))?;
-                entry.insert((stored_event.old_snapshot.clone(), diff_snapshot));
-            }
-        }
-    }
-    Ok(snapshots_by_path)
-}
-
-fn compute_uncommitted_diff(
-    snapshots_by_path: HashMap<Arc<Path>, (TextBufferSnapshot, BufferDiffSnapshot)>,
-) -> String {
-    let mut uncommitted_diff = String::new();
-    for (full_path, (before_text, diff_snapshot)) in snapshots_by_path {
-        if let Some(head_text) = &diff_snapshot.base_text_string() {
-            let file_diff = language::unified_diff(head_text, &before_text.text());
-            if !file_diff.is_empty() {
-                let path_str = full_path.to_string_lossy();
-                writeln!(uncommitted_diff, "--- a/{path_str}").ok();
-                writeln!(uncommitted_diff, "+++ b/{path_str}").ok();
-                uncommitted_diff.push_str(&file_diff);
-                if !uncommitted_diff.ends_with('\n') {
-                    uncommitted_diff.push('\n');
-                }
-            }
-        }
-    }
-    uncommitted_diff
-}
-
-fn generate_timestamp_name() -> String {
-    let format = time::format_description::parse("[year]-[month]-[day] [hour]:[minute]:[second]");
-    match format {
-        Ok(format) => {
-            let now = time::OffsetDateTime::now_local()
-                .unwrap_or_else(|_| time::OffsetDateTime::now_utc());
-            now.format(&format)
-                .unwrap_or_else(|_| "unknown-time".to_string())
-        }
-        Err(_) => "unknown-time".to_string(),
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use client::{Client, UserStore};
-    use clock::FakeSystemClock;
-    use gpui::{AppContext as _, TestAppContext, http_client::FakeHttpClient};
-    use indoc::indoc;
-    use language::{Anchor, Point};
-    use project::{FakeFs, Project};
-    use serde_json::json;
-    use settings::SettingsStore;
-    use std::path::Path;
-
-    #[gpui::test]
-    async fn test_capture_example(cx: &mut TestAppContext) {
-        init_test(cx);
-        let fs = FakeFs::new(cx.executor());
-
-        let committed_contents = indoc! {"
-            fn main() {
-                one();
-                two();
-                three();
-                four();
-                five();
-                six();
-                seven();
-                eight();
-                nine();
-            }
-        "};
-
-        let disk_contents = indoc! {"
-            fn main() {
-                // comment 1
-                one();
-                two();
-                three();
-                four();
-                five();
-                six();
-                seven();
-                eight();
-                // comment 2
-                nine();
-            }
-        "};
-
-        fs.insert_tree(
-            "/project",
-            json!({
-                ".git": {},
-                "src": {
-                    "main.rs": disk_contents,
-                }
-            }),
-        )
-        .await;
-
-        fs.set_head_for_repo(
-            Path::new("/project/.git"),
-            &[("src/main.rs", committed_contents.to_string())],
-            "abc123def456",
-        );
-        fs.set_remote_for_repo(
-            Path::new("/project/.git"),
-            "origin",
-            "https://github.com/test/repo.git",
-        );
-
-        let project = Project::test(fs.clone(), ["/project".as_ref()], cx).await;
-
-        let buffer = project
-            .update(cx, |project, cx| {
-                project.open_local_buffer("/project/src/main.rs", cx)
-            })
-            .await
-            .unwrap();
-
-        let ep_store = cx.read(|cx| EditPredictionStore::try_global(cx).unwrap());
-        ep_store.update(cx, |ep_store, cx| {
-            ep_store.register_buffer(&buffer, &project, cx)
-        });
-        cx.run_until_parked();
-
-        buffer.update(cx, |buffer, cx| {
-            let point = Point::new(6, 0);
-            buffer.edit([(point..point, "    // comment 3\n")], None, cx);
-            let point = Point::new(4, 0);
-            buffer.edit([(point..point, "    // comment 4\n")], None, cx);
-
-            pretty_assertions::assert_eq!(
-                buffer.text(),
-                indoc! {"
-                    fn main() {
-                        // comment 1
-                        one();
-                        two();
-                        // comment 4
-                        three();
-                        four();
-                        // comment 3
-                        five();
-                        six();
-                        seven();
-                        eight();
-                        // comment 2
-                        nine();
-                    }
-                "}
-            );
-        });
-        cx.run_until_parked();
-
-        let mut example = cx
-            .update(|cx| {
-                capture_example(project.clone(), buffer.clone(), Anchor::MIN, false, cx).unwrap()
-            })
-            .await
-            .unwrap();
-        example.name = "test".to_string();
-
-        pretty_assertions::assert_eq!(
-            example,
-            ExampleSpec {
-                name: "test".to_string(),
-                repository_url: "https://github.com/test/repo.git".to_string(),
-                revision: "abc123def456".to_string(),
-                uncommitted_diff: indoc! {"
-                    --- a/project/src/main.rs
-                    +++ b/project/src/main.rs
-                    @@ -1,4 +1,5 @@
-                     fn main() {
-                    +    // comment 1
-                         one();
-                         two();
-                         three();
-                    @@ -7,5 +8,6 @@
-                         six();
-                         seven();
-                         eight();
-                    +    // comment 2
-                         nine();
-                     }
-                "}
-                .to_string(),
-                cursor_path: Path::new("project/src/main.rs").into(),
-                cursor_position: indoc! {"
-                    <|user_cursor|>fn main() {
-                        // comment 1
-                        one();
-                        two();
-                        // comment 4
-                        three();
-                        four();
-                        // comment 3
-                        five();
-                        six();
-                        seven();
-                        eight();
-                        // comment 2
-                        nine();
-                    }
-                "}
-                .to_string(),
-                edit_history: indoc! {"
-                    --- a/project/src/main.rs
-                    +++ b/project/src/main.rs
-                    @@ -2,8 +2,10 @@
-                         // comment 1
-                         one();
-                         two();
-                    +    // comment 4
-                         three();
-                         four();
-                    +    // comment 3
-                         five();
-                         six();
-                         seven();
-                "}
-                .to_string(),
-                expected_patch: "".to_string(),
-            }
-        );
-    }
-
-    fn init_test(cx: &mut TestAppContext) {
-        cx.update(|cx| {
-            let settings_store = SettingsStore::test(cx);
-            cx.set_global(settings_store);
-            zlog::init_test();
-            let http_client = FakeHttpClient::with_404_response();
-            let client = Client::new(Arc::new(FakeSystemClock::new()), http_client, cx);
-            language_model::init(client.clone(), cx);
-            let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
-            EditPredictionStore::global(&client, &user_store, cx);
-        })
-    }
-}

crates/edit_prediction/src/edit_prediction.rs

@@ -35,7 +35,6 @@ use semver::Version;
 use serde::de::DeserializeOwned;
 use settings::{EditPredictionProvider, SettingsStore, update_settings_file};
 use std::collections::{VecDeque, hash_map};
-use text::Edit;
 use workspace::Workspace;
 
 use std::ops::Range;
@@ -58,9 +57,9 @@ pub mod open_ai_response;
 mod prediction;
 pub mod sweep_ai;
 
+#[cfg(any(test, feature = "test-support", feature = "cli-support"))]
 pub mod udiff;
 
-mod capture_example;
 mod zed_edit_prediction_delegate;
 pub mod zeta1;
 pub mod zeta2;
@@ -75,7 +74,6 @@ pub use crate::prediction::EditPrediction;
 pub use crate::prediction::EditPredictionId;
 use crate::prediction::EditPredictionResult;
 pub use crate::sweep_ai::SweepAi;
-pub use capture_example::capture_example;
 pub use language_model::ApiKeyState;
 pub use telemetry_events::EditPredictionRating;
 pub use zed_edit_prediction_delegate::ZedEditPredictionDelegate;
@@ -233,15 +231,8 @@ pub struct EditPredictionFinishedDebugEvent {
 
 pub type RequestDebugInfo = predict_edits_v3::DebugInfo;
 
-/// An event with associated metadata for reconstructing buffer state.
-#[derive(Clone)]
-pub struct StoredEvent {
-    pub event: Arc<zeta_prompt::Event>,
-    pub old_snapshot: TextBufferSnapshot,
-}
-
 struct ProjectState {
-    events: VecDeque<StoredEvent>,
+    events: VecDeque<Arc<zeta_prompt::Event>>,
     last_event: Option<LastEvent>,
     recent_paths: VecDeque<ProjectPath>,
     registered_buffers: HashMap<gpui::EntityId, RegisteredBuffer>,
@@ -257,7 +248,7 @@ struct ProjectState {
 }
 
 impl ProjectState {
-    pub fn events(&self, cx: &App) -> Vec<StoredEvent> {
+    pub fn events(&self, cx: &App) -> Vec<Arc<zeta_prompt::Event>> {
         self.events
             .iter()
             .cloned()
@@ -269,7 +260,7 @@ impl ProjectState {
             .collect()
     }
 
-    pub fn events_split_by_pause(&self, cx: &App) -> Vec<StoredEvent> {
+    pub fn events_split_by_pause(&self, cx: &App) -> Vec<Arc<zeta_prompt::Event>> {
         self.events
             .iter()
             .cloned()
@@ -424,7 +415,7 @@ impl LastEvent {
         &self,
         license_detection_watchers: &HashMap<WorktreeId, Rc<LicenseDetectionWatcher>>,
         cx: &App,
-    ) -> Option<StoredEvent> {
+    ) -> Option<Arc<zeta_prompt::Event>> {
         let path = buffer_path_with_id_fallback(self.new_file.as_ref(), &self.new_snapshot, cx);
         let old_path = buffer_path_with_id_fallback(self.old_file.as_ref(), &self.old_snapshot, cx);
 
@@ -439,22 +430,19 @@ impl LastEvent {
                     })
                 });
 
-        let diff = compute_diff_between_snapshots(&self.old_snapshot, &self.new_snapshot)?;
+        let diff = language::unified_diff(&self.old_snapshot.text(), &self.new_snapshot.text());
 
         if path == old_path && diff.is_empty() {
             None
         } else {
-            Some(StoredEvent {
-                event: Arc::new(zeta_prompt::Event::BufferChange {
-                    old_path,
-                    path,
-                    diff,
-                    in_open_source_repo,
-                    // TODO: Actually detect if this edit was predicted or not
-                    predicted: false,
-                }),
-                old_snapshot: self.old_snapshot.clone(),
-            })
+            Some(Arc::new(zeta_prompt::Event::BufferChange {
+                old_path,
+                path,
+                diff,
+                in_open_source_repo,
+                // TODO: Actually detect if this edit was predicted or not
+                predicted: false,
+            }))
         }
     }
 
@@ -487,52 +475,6 @@ impl LastEvent {
     }
 }
 
-pub(crate) fn compute_diff_between_snapshots(
-    old_snapshot: &TextBufferSnapshot,
-    new_snapshot: &TextBufferSnapshot,
-) -> Option<String> {
-    let edits: Vec<Edit<usize>> = new_snapshot
-        .edits_since::<usize>(&old_snapshot.version)
-        .collect();
-
-    let (first_edit, last_edit) = edits.first().zip(edits.last())?;
-
-    let old_start_point = old_snapshot.offset_to_point(first_edit.old.start);
-    let old_end_point = old_snapshot.offset_to_point(last_edit.old.end);
-    let new_start_point = new_snapshot.offset_to_point(first_edit.new.start);
-    let new_end_point = new_snapshot.offset_to_point(last_edit.new.end);
-
-    const CONTEXT_LINES: u32 = 3;
-
-    let old_context_start_row = old_start_point.row.saturating_sub(CONTEXT_LINES);
-    let new_context_start_row = new_start_point.row.saturating_sub(CONTEXT_LINES);
-    let old_context_end_row =
-        (old_end_point.row + 1 + CONTEXT_LINES).min(old_snapshot.max_point().row);
-    let new_context_end_row =
-        (new_end_point.row + 1 + CONTEXT_LINES).min(new_snapshot.max_point().row);
-
-    let old_start_line_offset = old_snapshot.point_to_offset(Point::new(old_context_start_row, 0));
-    let new_start_line_offset = new_snapshot.point_to_offset(Point::new(new_context_start_row, 0));
-    let old_end_line_offset = old_snapshot
-        .point_to_offset(Point::new(old_context_end_row + 1, 0).min(old_snapshot.max_point()));
-    let new_end_line_offset = new_snapshot
-        .point_to_offset(Point::new(new_context_end_row + 1, 0).min(new_snapshot.max_point()));
-    let old_edit_range = old_start_line_offset..old_end_line_offset;
-    let new_edit_range = new_start_line_offset..new_end_line_offset;
-
-    let old_region_text: String = old_snapshot.text_for_range(old_edit_range).collect();
-    let new_region_text: String = new_snapshot.text_for_range(new_edit_range).collect();
-
-    let diff = language::unified_diff_with_offsets(
-        &old_region_text,
-        &new_region_text,
-        old_context_start_row,
-        new_context_start_row,
-    );
-
-    Some(diff)
-}
-
 fn buffer_path_with_id_fallback(
     file: Option<&Arc<dyn File>>,
     snapshot: &TextBufferSnapshot,
@@ -701,7 +643,7 @@ impl EditPredictionStore {
         &self,
         project: &Entity<Project>,
         cx: &App,
-    ) -> Vec<StoredEvent> {
+    ) -> Vec<Arc<zeta_prompt::Event>> {
         self.projects
             .get(&project.entity_id())
             .map(|project_state| project_state.events(cx))
@@ -712,7 +654,7 @@ impl EditPredictionStore {
         &self,
         project: &Entity<Project>,
         cx: &App,
-    ) -> Vec<StoredEvent> {
+    ) -> Vec<Arc<zeta_prompt::Event>> {
         self.projects
             .get(&project.entity_id())
             .map(|project_state| project_state.events_split_by_pause(cx))
@@ -1594,10 +1536,8 @@ impl EditPredictionStore {
 
         self.get_or_init_project(&project, cx);
         let project_state = self.projects.get(&project.entity_id()).unwrap();
-        let stored_events = project_state.events(cx);
-        let has_events = !stored_events.is_empty();
-        let events: Vec<Arc<zeta_prompt::Event>> =
-            stored_events.into_iter().map(|e| e.event).collect();
+        let events = project_state.events(cx);
+        let has_events = !events.is_empty();
         let debug_tx = project_state.debug_tx.clone();
 
         let snapshot = active_buffer.read(cx).snapshot();

crates/edit_prediction/src/edit_prediction_tests.rs

@@ -1,5 +1,5 @@
 use super::*;
-use crate::{compute_diff_between_snapshots, udiff::apply_diff_to_string, zeta1::MAX_EVENT_TOKENS};
+use crate::{udiff::apply_diff_to_string, zeta1::MAX_EVENT_TOKENS};
 use client::{UserStore, test::FakeServer};
 use clock::{FakeSystemClock, ReplicaId};
 use cloud_api_types::{CreateLlmTokenResponse, LlmToken};
@@ -360,7 +360,7 @@ async fn test_edit_history_getter_pause_splits_last_event(cx: &mut TestAppContex
         ep_store.edit_history_for_project(&project, cx)
     });
     assert_eq!(events.len(), 1);
-    let zeta_prompt::Event::BufferChange { diff, .. } = events[0].event.as_ref();
+    let zeta_prompt::Event::BufferChange { diff, .. } = events[0].as_ref();
     assert_eq!(
         diff.as_str(),
         indoc! {"
@@ -377,7 +377,7 @@ async fn test_edit_history_getter_pause_splits_last_event(cx: &mut TestAppContex
         ep_store.edit_history_for_project_with_pause_split_last_event(&project, cx)
     });
     assert_eq!(events.len(), 2);
-    let zeta_prompt::Event::BufferChange { diff, .. } = events[0].event.as_ref();
+    let zeta_prompt::Event::BufferChange { diff, .. } = events[0].as_ref();
     assert_eq!(
         diff.as_str(),
         indoc! {"
@@ -389,7 +389,7 @@ async fn test_edit_history_getter_pause_splits_last_event(cx: &mut TestAppContex
         "}
     );
 
-    let zeta_prompt::Event::BufferChange { diff, .. } = events[1].event.as_ref();
+    let zeta_prompt::Event::BufferChange { diff, .. } = events[1].as_ref();
     assert_eq!(
         diff.as_str(),
         indoc! {"
@@ -2082,74 +2082,6 @@ async fn test_unauthenticated_with_custom_url_allows_prediction_impl(cx: &mut Te
     );
 }
 
-#[gpui::test]
-fn test_compute_diff_between_snapshots(cx: &mut TestAppContext) {
-    let buffer = cx.new(|cx| {
-        Buffer::local(
-            indoc! {"
-                zero
-                one
-                two
-                three
-                four
-                five
-                six
-                seven
-                eight
-                nine
-                ten
-                eleven
-                twelve
-                thirteen
-                fourteen
-                fifteen
-                sixteen
-                seventeen
-                eighteen
-                nineteen
-                twenty
-                twenty-one
-                twenty-two
-                twenty-three
-                twenty-four
-            "},
-            cx,
-        )
-    });
-
-    let old_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
-
-    buffer.update(cx, |buffer, cx| {
-        let point = Point::new(12, 0);
-        buffer.edit([(point..point, "SECOND INSERTION\n")], None, cx);
-        let point = Point::new(8, 0);
-        buffer.edit([(point..point, "FIRST INSERTION\n")], None, cx);
-    });
-
-    let new_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
-
-    let diff = compute_diff_between_snapshots(&old_snapshot, &new_snapshot).unwrap();
-
-    assert_eq!(
-        diff,
-        indoc! {"
-            @@ -6,10 +6,12 @@
-             five
-             six
-             seven
-            +FIRST INSERTION
-             eight
-             nine
-             ten
-             eleven
-            +SECOND INSERTION
-             twelve
-             thirteen
-             fourteen
-            "}
-    );
-}
-
 #[ctor::ctor]
 fn init_logger() {
     zlog::init_test();

crates/edit_prediction/src/example_spec.rs

@@ -1,7 +1,7 @@
 use serde::{Deserialize, Serialize};
 use std::{fmt::Write as _, mem, path::Path, sync::Arc};
 
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct ExampleSpec {
     #[serde(default)]
     pub name: String,

crates/edit_prediction_cli/src/format_prompt.rs

@@ -45,11 +45,6 @@ pub async fn run_format_prompt(
             let snapshot = state.buffer.read_with(&cx, |buffer, _| buffer.snapshot())?;
             let project = state.project.clone();
             let (_, input) = ep_store.update(&mut cx, |ep_store, cx| {
-                let events = ep_store
-                    .edit_history_for_project(&project, cx)
-                    .into_iter()
-                    .map(|e| e.event)
-                    .collect();
                 anyhow::Ok(zeta2_prompt_input(
                     &snapshot,
                     example
@@ -58,7 +53,7 @@ pub async fn run_format_prompt(
                         .context("context must be set")?
                         .files
                         .clone(),
-                    events,
+                    ep_store.edit_history_for_project(&project, cx),
                     example.spec.cursor_path.clone(),
                     example
                         .buffer

crates/edit_prediction_ui/Cargo.toml

@@ -15,7 +15,8 @@ doctest = false
 [dependencies]
 anyhow.workspace = true
 buffer_diff.workspace = true
-collections.workspace = true
+git.workspace = true
+log.workspace = true
 time.workspace = true
 client.workspace = true
 cloud_llm_client.workspace = true
@@ -49,18 +50,11 @@ zed_actions.workspace = true
 zeta_prompt.workspace = true
 
 [dev-dependencies]
-clock.workspace = true
 copilot = { workspace = true, features = ["test-support"] }
 editor = { workspace = true, features = ["test-support"] }
 futures.workspace = true
 indoc.workspace = true
-language_model.workspace = true
 lsp = { workspace = true, features = ["test-support"] }
-pretty_assertions.workspace = true
 project = { workspace = true, features = ["test-support"] }
-release_channel.workspace = true
-semver.workspace = true
 serde_json.workspace = true
 theme = { workspace = true, features = ["test-support"] }
-workspace = { workspace = true, features = ["test-support"] }
-zlog.workspace = true

crates/edit_prediction_ui/src/edit_prediction_button.rs

@@ -36,8 +36,8 @@ use std::{
 };
 use supermaven::{AccountStatus, Supermaven};
 use ui::{
-    Clickable, ContextMenu, ContextMenuEntry, DocumentationSide, IconButton, IconButtonShape,
-    Indicator, PopoverMenu, PopoverMenuHandle, ProgressBar, Tooltip, prelude::*,
+    Clickable, ContextMenu, ContextMenuEntry, DocumentationEdge, DocumentationSide, IconButton,
+    IconButtonShape, Indicator, PopoverMenu, PopoverMenuHandle, ProgressBar, Tooltip, prelude::*,
 };
 use util::ResultExt as _;
 use workspace::{
@@ -680,7 +680,7 @@ impl EditPredictionButton {
                     menu = menu.item(
                         entry
                             .disabled(true)
-                            .documentation_aside(DocumentationSide::Left, move |_cx| {
+                            .documentation_aside(DocumentationSide::Left, DocumentationEdge::Top, move |_cx| {
                                 Label::new(format!("Edit predictions cannot be toggled for this buffer because they are disabled for {}", language.name()))
                                     .into_any_element()
                             })
@@ -726,7 +726,7 @@ impl EditPredictionButton {
                 .item(
                     ContextMenuEntry::new("Eager")
                         .toggleable(IconPosition::Start, eager_mode)
-                        .documentation_aside(DocumentationSide::Left, move |_| {
+                        .documentation_aside(DocumentationSide::Left, DocumentationEdge::Top, move |_| {
                             Label::new("Display predictions inline when there are no language server completions available.").into_any_element()
                         })
                         .handler({
@@ -739,7 +739,7 @@ impl EditPredictionButton {
                 .item(
                     ContextMenuEntry::new("Subtle")
                         .toggleable(IconPosition::Start, subtle_mode)
-                        .documentation_aside(DocumentationSide::Left, move |_| {
+                        .documentation_aside(DocumentationSide::Left, DocumentationEdge::Top, move |_| {
                             Label::new("Display predictions inline only when holding a modifier key (alt by default).").into_any_element()
                         })
                         .handler({
@@ -778,7 +778,7 @@ impl EditPredictionButton {
                             .toggleable(IconPosition::Start, data_collection.is_enabled())
                             .icon(icon_name)
                             .icon_color(icon_color)
-                            .documentation_aside(DocumentationSide::Left, move |cx| {
+                            .documentation_aside(DocumentationSide::Left, DocumentationEdge::Top, move |cx| {
                                 let (msg, label_color, icon_name, icon_color) = match (is_open_source, is_collecting) {
                                     (true, true) => (
                                         "Project identified as open source, and you're sharing data.",
@@ -862,7 +862,7 @@ impl EditPredictionButton {
             ContextMenuEntry::new("Configure Excluded Files")
                 .icon(IconName::LockOutlined)
                 .icon_color(Color::Muted)
-                .documentation_aside(DocumentationSide::Left, |_| {
+                .documentation_aside(DocumentationSide::Left, DocumentationEdge::Top, |_| {
                     Label::new(indoc!{"
                         Open your settings to add sensitive paths for which Zed will never predict edits."}).into_any_element()
                 })
@@ -915,8 +915,11 @@ impl EditPredictionButton {
                 .when(
                     cx.has_flag::<PredictEditsRatePredictionsFeatureFlag>(),
                     |this| {
-                        this.action("Capture Prediction Example", CaptureExample.boxed_clone())
-                            .action("Rate Predictions", RatePredictions.boxed_clone())
+                        this.action(
+                            "Capture Edit Prediction Example",
+                            CaptureExample.boxed_clone(),
+                        )
+                        .action("Rate Predictions", RatePredictions.boxed_clone())
                     },
                 );
         }

crates/edit_prediction_ui/src/edit_prediction_ui.rs

@@ -2,17 +2,25 @@ mod edit_prediction_button;
 mod edit_prediction_context_view;
 mod rate_prediction_modal;
 
+use std::any::{Any as _, TypeId};
+use std::path::Path;
+use std::sync::Arc;
+
 use command_palette_hooks::CommandPaletteFilter;
-use edit_prediction::{ResetOnboarding, Zeta2FeatureFlag, capture_example};
+use edit_prediction::{
+    EditPredictionStore, ResetOnboarding, Zeta2FeatureFlag, example_spec::ExampleSpec,
+};
 use edit_prediction_context_view::EditPredictionContextView;
 use editor::Editor;
 use feature_flags::FeatureFlagAppExt as _;
-use gpui::actions;
-use language::language_settings::AllLanguageSettings;
+use git::repository::DiffType;
+use gpui::{Window, actions};
+use language::ToPoint as _;
+use log;
 use project::DisableAiSettings;
 use rate_prediction_modal::RatePredictionsModal;
 use settings::{Settings as _, SettingsStore};
-use std::any::{Any as _, TypeId};
+use text::ToOffset as _;
 use ui::{App, prelude::*};
 use workspace::{SplitDirection, Workspace};
 
@@ -48,9 +56,7 @@ pub fn init(cx: &mut App) {
             }
         });
 
-        workspace.register_action(|workspace, _: &CaptureExample, window, cx| {
-            capture_example_as_markdown(workspace, window, cx);
-        });
+        workspace.register_action(capture_edit_prediction_example);
         workspace.register_action_renderer(|div, _, _, cx| {
             let has_flag = cx.has_flag::<Zeta2FeatureFlag>();
             div.when(has_flag, |div| {
@@ -132,48 +138,182 @@ fn feature_gate_predict_edits_actions(cx: &mut App) {
     .detach();
 }
 
-fn capture_example_as_markdown(
+fn capture_edit_prediction_example(
     workspace: &mut Workspace,
+    _: &CaptureExample,
     window: &mut Window,
     cx: &mut Context<Workspace>,
-) -> Option<()> {
+) {
+    let Some(ep_store) = EditPredictionStore::try_global(cx) else {
+        return;
+    };
+
+    let project = workspace.project().clone();
+
+    let (worktree_root, repository) = {
+        let project_ref = project.read(cx);
+        let worktree_root = project_ref
+            .visible_worktrees(cx)
+            .next()
+            .map(|worktree| worktree.read(cx).abs_path());
+        let repository = project_ref.active_repository(cx);
+        (worktree_root, repository)
+    };
+
+    let (Some(worktree_root), Some(repository)) = (worktree_root, repository) else {
+        log::error!("CaptureExampleSpec: missing worktree or active repository");
+        return;
+    };
+
+    let repository_snapshot = repository.read(cx).snapshot();
+    if worktree_root.as_ref() != repository_snapshot.work_directory_abs_path.as_ref() {
+        log::error!(
+            "repository is not at worktree root (repo={:?}, worktree={:?})",
+            repository_snapshot.work_directory_abs_path,
+            worktree_root
+        );
+        return;
+    }
+
+    let Some(repository_url) = repository_snapshot
+        .remote_origin_url
+        .clone()
+        .or_else(|| repository_snapshot.remote_upstream_url.clone())
+    else {
+        log::error!("active repository has no origin/upstream remote url");
+        return;
+    };
+
+    let Some(revision) = repository_snapshot
+        .head_commit
+        .as_ref()
+        .map(|commit| commit.sha.to_string())
+    else {
+        log::error!("active repository has no head commit");
+        return;
+    };
+
+    let mut events = ep_store.update(cx, |store, cx| {
+        store.edit_history_for_project_with_pause_split_last_event(&project, cx)
+    });
+
+    let Some(editor) = workspace.active_item_as::<Editor>(cx) else {
+        log::error!("no active editor");
+        return;
+    };
+
+    let Some(project_path) = editor.read(cx).project_path(cx) else {
+        log::error!("active editor has no project path");
+        return;
+    };
+
+    let Some((buffer, cursor_anchor)) = editor
+        .read(cx)
+        .buffer()
+        .read(cx)
+        .text_anchor_for_position(editor.read(cx).selections.newest_anchor().head(), cx)
+    else {
+        log::error!("failed to resolve cursor buffer/anchor");
+        return;
+    };
+
+    let snapshot = buffer.read(cx).snapshot();
+    let cursor_point = cursor_anchor.to_point(&snapshot);
+    let (_editable_range, context_range) =
+        edit_prediction::cursor_excerpt::editable_and_context_ranges_for_cursor_position(
+            cursor_point,
+            &snapshot,
+            100,
+            50,
+        );
+
+    let cursor_path: Arc<Path> = repository
+        .read(cx)
+        .project_path_to_repo_path(&project_path, cx)
+        .map(|repo_path| Path::new(repo_path.as_unix_str()).into())
+        .unwrap_or_else(|| Path::new(project_path.path.as_unix_str()).into());
+
+    let cursor_position = {
+        let context_start_offset = context_range.start.to_offset(&snapshot);
+        let cursor_offset = cursor_anchor.to_offset(&snapshot);
+        let cursor_offset_in_excerpt = cursor_offset.saturating_sub(context_start_offset);
+        let mut excerpt = snapshot.text_for_range(context_range).collect::<String>();
+        if cursor_offset_in_excerpt <= excerpt.len() {
+            excerpt.insert_str(cursor_offset_in_excerpt, zeta_prompt::CURSOR_MARKER);
+        }
+        excerpt
+    };
+
     let markdown_language = workspace
         .app_state()
         .languages
         .language_for_name("Markdown");
 
-    let fs = workspace.app_state().fs.clone();
-    let project = workspace.project().clone();
-    let editor = workspace.active_item_as::<Editor>(cx)?;
-    let editor = editor.read(cx);
-    let (buffer, cursor_anchor) = editor
-        .buffer()
-        .read(cx)
-        .text_anchor_for_position(editor.selections.newest_anchor().head(), cx)?;
-    let example = capture_example(project.clone(), buffer, cursor_anchor, true, cx)?;
-
-    let examples_dir = AllLanguageSettings::get_global(cx)
-        .edit_predictions
-        .examples_dir
-        .clone();
-
     cx.spawn_in(window, async move |workspace_entity, cx| {
         let markdown_language = markdown_language.await?;
-        let example_spec = example.await?;
-        let buffer = if let Some(dir) = examples_dir {
-            fs.create_dir(&dir).await.ok();
-            let mut path = dir.join(&example_spec.name.replace(' ', "--").replace(':', "-"));
-            path.set_extension("md");
-            project.update(cx, |project, cx| project.open_local_buffer(&path, cx))
-        } else {
-            project.update(cx, |project, cx| project.create_buffer(false, cx))
-        }?
-        .await?;
 
+        let uncommitted_diff_rx = repository.update(cx, |repository, cx| {
+            repository.diff(DiffType::HeadToWorktree, cx)
+        })?;
+
+        let uncommitted_diff = match uncommitted_diff_rx.await {
+            Ok(Ok(diff)) => diff,
+            Ok(Err(error)) => {
+                log::error!("failed to compute uncommitted diff: {error:#}");
+                return Ok(());
+            }
+            Err(error) => {
+                log::error!("uncommitted diff channel dropped: {error:#}");
+                return Ok(());
+            }
+        };
+
+        let mut edit_history = String::new();
+        let mut expected_patch = String::new();
+        if let Some(last_event) = events.pop() {
+            for event in &events {
+                zeta_prompt::write_event(&mut edit_history, event);
+                if !edit_history.ends_with('\n') {
+                    edit_history.push('\n');
+                }
+                edit_history.push('\n');
+            }
+
+            zeta_prompt::write_event(&mut expected_patch, &last_event);
+        }
+
+        let format =
+            time::format_description::parse("[year]-[month]-[day] [hour]:[minute]:[second]");
+        let name = match format {
+            Ok(format) => {
+                let now = time::OffsetDateTime::now_local()
+                    .unwrap_or_else(|_| time::OffsetDateTime::now_utc());
+                now.format(&format)
+                    .unwrap_or_else(|_| "unknown-time".to_string())
+            }
+            Err(_) => "unknown-time".to_string(),
+        };
+
+        let markdown = ExampleSpec {
+            name,
+            repository_url,
+            revision,
+            uncommitted_diff,
+            cursor_path,
+            cursor_position,
+            edit_history,
+            expected_patch,
+        }
+        .to_markdown();
+
+        let buffer = project
+            .update(cx, |project, cx| project.create_buffer(false, cx))?
+            .await?;
         buffer.update(cx, |buffer, cx| {
-            buffer.set_text(example_spec.to_markdown(), cx);
+            buffer.set_text(markdown, cx);
             buffer.set_language(Some(markdown_language), cx);
         })?;
+
         workspace_entity.update_in(cx, |workspace, window, cx| {
             workspace.add_item_to_active_pane(
                 Box::new(
@@ -187,5 +327,4 @@ fn capture_example_as_markdown(
         })
     })
     .detach_and_log_err(cx);
-    None
 }

crates/edit_prediction_ui/src/rate_prediction_modal.rs

@@ -1,4 +1,4 @@
-use buffer_diff::BufferDiff;
+use buffer_diff::{BufferDiff, BufferDiffSnapshot};
 use edit_prediction::{EditPrediction, EditPredictionRating, EditPredictionStore};
 use editor::{Editor, ExcerptRange, MultiBuffer};
 use feature_flags::FeatureFlag;
@@ -323,23 +323,22 @@ impl RatePredictionsModal {
                 let start = Point::new(range.start.row.saturating_sub(5), 0);
                 let end = Point::new(range.end.row + 5, 0).min(new_buffer_snapshot.max_point());
 
-                let language = new_buffer_snapshot.language().cloned();
-                let diff = cx.new(|cx| BufferDiff::new(&new_buffer_snapshot.text, cx));
-                diff.update(cx, |diff, cx| {
-                    let update = diff.update_diff(
+                let diff = cx.new::<BufferDiff>(|cx| {
+                    let diff_snapshot = BufferDiffSnapshot::new_with_base_buffer(
                         new_buffer_snapshot.text.clone(),
                         Some(old_buffer_snapshot.text().into()),
-                        true,
-                        language,
+                        old_buffer_snapshot.clone(),
                         cx,
                     );
+                    let diff = BufferDiff::new(&new_buffer_snapshot, cx);
                     cx.spawn(async move |diff, cx| {
-                        let update = update.await;
+                        let diff_snapshot = diff_snapshot.await;
                         diff.update(cx, |diff, cx| {
-                            diff.set_snapshot(update, &new_buffer_snapshot.text, cx);
+                            diff.set_snapshot(diff_snapshot, &new_buffer_snapshot.text, cx);
                         })
                     })
                     .detach();
+                    diff
                 });
 
                 editor.disable_header_for_buffer(new_buffer_id, cx);

crates/editor/src/display_map.rs

@@ -232,6 +232,8 @@ impl DisplayMap {
             .update(cx, |map, cx| map.sync(tab_snapshot, edits, cx));
         let block_snapshot = self.block_map.read(wrap_snapshot, edits).snapshot;
 
+        // todo word diff here?
+
         DisplaySnapshot {
             block_snapshot,
             diagnostics_max_severity: self.diagnostics_max_severity,

crates/editor/src/display_map/wrap_map.rs

@@ -1119,6 +1119,7 @@ impl Iterator for WrapRows<'_> {
             RowInfo {
                 buffer_id: None,
                 buffer_row: None,
+                base_text_row: None,
                 multibuffer_row: None,
                 diff_status,
                 expand_info: None,

crates/editor/src/editor.rs

@@ -1072,7 +1072,6 @@ pub struct Editor {
     minimap_visibility: MinimapVisibility,
     offset_content: bool,
     disable_expand_excerpt_buttons: bool,
-    delegate_expand_excerpts: bool,
     show_line_numbers: Option<bool>,
     use_relative_line_numbers: Option<bool>,
     show_git_diff_gutter: Option<bool>,
@@ -1204,7 +1203,6 @@ pub struct Editor {
     hide_mouse_mode: HideMouseMode,
     pub change_list: ChangeList,
     inline_value_cache: InlineValueCache,
-    number_deleted_lines: bool,
 
     selection_drag_state: SelectionDragState,
     colors: Option<LspColorData>,
@@ -1217,6 +1215,7 @@ pub struct Editor {
     applicable_language_settings: HashMap<Option<LanguageName>, LanguageSettings>,
     accent_data: Option<AccentData>,
     fetched_tree_sitter_chunks: HashMap<ExcerptId, HashSet<Range<BufferRow>>>,
+    use_base_text_line_numbers: bool,
 }
 
 #[derive(Debug, PartialEq)]
@@ -1257,7 +1256,6 @@ pub struct EditorSnapshot {
     show_gutter: bool,
     offset_content: bool,
     show_line_numbers: Option<bool>,
-    number_deleted_lines: bool,
     show_git_diff_gutter: Option<bool>,
     show_code_actions: Option<bool>,
     show_runnables: Option<bool>,
@@ -2239,7 +2237,6 @@ impl Editor {
             show_line_numbers: (!full_mode).then_some(false),
             use_relative_line_numbers: None,
             disable_expand_excerpt_buttons: !full_mode,
-            delegate_expand_excerpts: false,
             show_git_diff_gutter: None,
             show_code_actions: None,
             show_runnables: None,
@@ -2408,7 +2405,7 @@ impl Editor {
             applicable_language_settings: HashMap::default(),
             accent_data: None,
             fetched_tree_sitter_chunks: HashMap::default(),
-            number_deleted_lines: false,
+            use_base_text_line_numbers: false,
         };
 
         if is_minimap {
@@ -2943,7 +2940,6 @@ impl Editor {
             show_gutter: self.show_gutter,
             offset_content: self.offset_content,
             show_line_numbers: self.show_line_numbers,
-            number_deleted_lines: self.number_deleted_lines,
             show_git_diff_gutter: self.show_git_diff_gutter,
             show_code_actions: self.show_code_actions,
             show_runnables: self.show_runnables,
@@ -11500,7 +11496,7 @@ impl Editor {
         let buffer = buffer.read(cx);
         let original_text = diff
             .read(cx)
-            .base_text(cx)
+            .base_text()
             .as_rope()
             .slice(hunk.diff_base_byte_range.start.0..hunk.diff_base_byte_range.end.0);
         let buffer_snapshot = buffer.snapshot();
@@ -16594,6 +16590,7 @@ impl Editor {
         &mut self,
         lines: u32,
         direction: ExpandExcerptDirection,
+
         cx: &mut Context<Self>,
     ) {
         let selections = self.selections.disjoint_anchors_arc();
@@ -16604,24 +16601,14 @@ impl Editor {
             lines
         };
 
-        let snapshot = self.buffer.read(cx).snapshot(cx);
-        let mut excerpt_ids = selections
-            .iter()
-            .flat_map(|selection| snapshot.excerpt_ids_for_range(selection.range()))
-            .collect::<Vec<_>>();
-        excerpt_ids.sort();
-        excerpt_ids.dedup();
-
-        if self.delegate_expand_excerpts {
-            cx.emit(EditorEvent::ExpandExcerptsRequested {
-                excerpt_ids,
-                lines,
-                direction,
-            });
-            return;
-        }
-
         self.buffer.update(cx, |buffer, cx| {
+            let snapshot = buffer.snapshot(cx);
+            let mut excerpt_ids = selections
+                .iter()
+                .flat_map(|selection| snapshot.excerpt_ids_for_range(selection.range()))
+                .collect::<Vec<_>>();
+            excerpt_ids.sort();
+            excerpt_ids.dedup();
             buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
         })
     }
@@ -16633,18 +16620,8 @@ impl Editor {
         window: &mut Window,
         cx: &mut Context<Self>,
     ) {
-        let lines_to_expand = EditorSettings::get_global(cx).expand_excerpt_lines;
-
-        if self.delegate_expand_excerpts {
-            cx.emit(EditorEvent::ExpandExcerptsRequested {
-                excerpt_ids: vec![excerpt],
-                lines: lines_to_expand,
-                direction,
-            });
-            return;
-        }
-
         let current_scroll_position = self.scroll_position(cx);
+        let lines_to_expand = EditorSettings::get_global(cx).expand_excerpt_lines;
         let mut scroll = None;
 
         if direction == ExpandExcerptDirection::Down {
@@ -19721,6 +19698,10 @@ impl Editor {
         self.display_map.read(cx).fold_placeholder.clone()
     }
 
+    pub fn set_use_base_text_line_numbers(&mut self, show: bool, _cx: &mut Context<Self>) {
+        self.use_base_text_line_numbers = show;
+    }
+
     pub fn set_expand_all_diff_hunks(&mut self, cx: &mut App) {
         self.buffer.update(cx, |buffer, cx| {
             buffer.set_all_diff_hunks_expanded(cx);
@@ -19962,7 +19943,7 @@ impl Editor {
                         buffer_word_diffs: Vec::default(),
                         diff_base_byte_range: hunk.diff_base_byte_range.start.0
                             ..hunk.diff_base_byte_range.end.0,
-                        secondary_status: hunk.status.secondary,
+                        secondary_status: hunk.secondary_status,
                         range: Point::zero()..Point::zero(), // unused
                     })
                     .collect::<Vec<_>>(),
@@ -20494,7 +20475,7 @@ impl Editor {
         EditorSettings::get_global(cx).gutter.line_numbers
     }
 
-    pub fn relative_line_numbers(&self, cx: &App) -> RelativeLineNumbers {
+    pub fn relative_line_numbers(&self, cx: &mut App) -> RelativeLineNumbers {
         match (
             self.use_relative_line_numbers,
             EditorSettings::get_global(cx).relative_line_numbers,
@@ -20591,10 +20572,6 @@ impl Editor {
         cx.notify();
     }
 
-    pub fn set_delegate_expand_excerpts(&mut self, delegate: bool) {
-        self.delegate_expand_excerpts = delegate;
-    }
-
     pub fn set_show_git_diff_gutter(&mut self, show_git_diff_gutter: bool, cx: &mut Context<Self>) {
         self.show_git_diff_gutter = Some(show_git_diff_gutter);
         cx.notify();
@@ -21006,12 +20983,8 @@ impl Editor {
 
             Some((
                 multi_buffer.buffer(buffer.remote_id()).unwrap(),
-                buffer_diff_snapshot.row_to_base_text_row(start_row_in_buffer, Bias::Left, buffer)
-                    ..buffer_diff_snapshot.row_to_base_text_row(
-                        end_row_in_buffer,
-                        Bias::Left,
-                        buffer,
-                    ),
+                buffer_diff_snapshot.row_to_base_text_row(start_row_in_buffer, buffer)
+                    ..buffer_diff_snapshot.row_to_base_text_row(end_row_in_buffer, buffer),
             ))
         });
 
@@ -25321,66 +25294,6 @@ impl EditorSnapshot {
         let digit_count = self.widest_line_number().ilog10() + 1;
         column_pixels(style, digit_count as usize, window)
     }
-
-    /// Returns the line delta from `base` to `line` in the multibuffer, ignoring wrapped lines.
-    ///
-    /// This is positive if `base` is before `line`.
-    fn relative_line_delta(
-        &self,
-        base: DisplayRow,
-        line: DisplayRow,
-        consider_wrapped_lines: bool,
-    ) -> i64 {
-        let point = DisplayPoint::new(line, 0).to_point(self);
-        self.relative_line_delta_to_point(base, point, consider_wrapped_lines)
-    }
-
-    /// Returns the line delta from `base` to `point` in the multibuffer.
-    ///
-    /// This is positive if `base` is before `point`.
-    pub fn relative_line_delta_to_point(
-        &self,
-        base: DisplayRow,
-        point: Point,
-        consider_wrapped_lines: bool,
-    ) -> i64 {
-        let base_point = DisplayPoint::new(base, 0).to_point(self);
-        if consider_wrapped_lines {
-            let wrap_snapshot = self.wrap_snapshot();
-            let base_wrap_row = wrap_snapshot.make_wrap_point(base_point, Bias::Left).row();
-            let wrap_row = wrap_snapshot.make_wrap_point(point, Bias::Left).row();
-            wrap_row.0 as i64 - base_wrap_row.0 as i64
-        } else {
-            point.row as i64 - base_point.row as i64
-        }
-    }
-
-    /// Returns the unsigned relative line number to display for each row in `rows`.
-    ///
-    /// Wrapped rows are excluded from the hashmap if `count_relative_lines` is `false`.
-    pub fn calculate_relative_line_numbers(
-        &self,
-        rows: &Range<DisplayRow>,
-        relative_to: DisplayRow,
-        count_wrapped_lines: bool,
-    ) -> HashMap<DisplayRow, u32> {
-        let initial_offset = self.relative_line_delta(relative_to, rows.start, count_wrapped_lines);
-
-        self.row_infos(rows.start)
-            .take(rows.len())
-            .enumerate()
-            .map(|(i, row_info)| (DisplayRow(rows.start.0 + i as u32), row_info))
-            .filter(|(_row, row_info)| {
-                row_info.buffer_row.is_some()
-                    || (count_wrapped_lines && row_info.wrapped_buffer_row.is_some())
-            })
-            .enumerate()
-            .flat_map(|(i, (row, _row_info))| {
-                (row != relative_to)
-                    .then_some((row, (initial_offset + i as i64).unsigned_abs() as u32))
-            })
-            .collect()
-    }
 }
 
 pub fn column_pixels(style: &EditorStyle, column: usize, window: &Window) -> Pixels {
@@ -25436,11 +25349,6 @@ pub enum EditorEvent {
     ExcerptsExpanded {
         ids: Vec<ExcerptId>,
     },
-    ExpandExcerptsRequested {
-        excerpt_ids: Vec<ExcerptId>,
-        lines: u32,
-        direction: ExpandExcerptDirection,
-    },
     BufferEdited,
     Edited {
         transaction_id: clock::Lamport,

crates/editor/src/editor_tests.rs

@@ -36,7 +36,7 @@ use languages::markdown_lang;
 use languages::rust_lang;
 use lsp::CompletionParams;
 use multi_buffer::{
-    ExcerptRange, IndentGuide, MultiBuffer, MultiBufferOffset, MultiBufferOffsetUtf16, PathKey,
+    IndentGuide, MultiBufferFilterMode, MultiBufferOffset, MultiBufferOffsetUtf16, PathKey,
 };
 use parking_lot::Mutex;
 use pretty_assertions::{assert_eq, assert_ne};
@@ -13220,28 +13220,30 @@ async fn test_strip_whitespace_and_format_via_lsp(cx: &mut TestAppContext) {
     // Handle formatting requests to the language server.
     cx.lsp
         .set_request_handler::<lsp::request::Formatting, _, _>({
+            let buffer_changes = buffer_changes.clone();
             move |_, _| {
+                let buffer_changes = buffer_changes.clone();
                 // Insert blank lines between each line of the buffer.
                 async move {
-                    // TODO: this assertion is not reliably true. Currently nothing guarantees that we deliver
-                    // DidChangedTextDocument to the LSP before sending the formatting request.
-                    // assert_eq!(
-                    //     &buffer_changes.lock()[1..],
-                    //     &[
-                    //         (
-                    //             lsp::Range::new(lsp::Position::new(0, 3), lsp::Position::new(0, 4)),
-                    //             "".into()
-                    //         ),
-                    //         (
-                    //             lsp::Range::new(lsp::Position::new(2, 5), lsp::Position::new(2, 6)),
-                    //             "".into()
-                    //         ),
-                    //         (
-                    //             lsp::Range::new(lsp::Position::new(3, 4), lsp::Position::new(3, 4)),
-                    //             "\n".into()
-                    //         ),
-                    //     ]
-                    // );
+                    // When formatting is requested, trailing whitespace has already been stripped,
+                    // and the trailing newline has already been added.
+                    assert_eq!(
+                        &buffer_changes.lock()[1..],
+                        &[
+                            (
+                                lsp::Range::new(lsp::Position::new(0, 3), lsp::Position::new(0, 4)),
+                                "".into()
+                            ),
+                            (
+                                lsp::Range::new(lsp::Position::new(2, 5), lsp::Position::new(2, 6)),
+                                "".into()
+                            ),
+                            (
+                                lsp::Range::new(lsp::Position::new(3, 4), lsp::Position::new(3, 4)),
+                                "\n".into()
+                            ),
+                        ]
+                    );
 
                     Ok(Some(vec![
                         lsp::TextEdit {
@@ -13273,6 +13275,7 @@ async fn test_strip_whitespace_and_format_via_lsp(cx: &mut TestAppContext) {
         ]
         .join("\n"),
     );
+    cx.run_until_parked();
 
     // Submit a format request.
     let format = cx
@@ -18342,7 +18345,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut TestAppCon
     );
 
     update_test_project_settings(cx, |project_settings| {
-        project_settings.lsp.0.insert(
+        project_settings.lsp.insert(
             "Some other server name".into(),
             LspSettings {
                 binary: None,
@@ -18363,7 +18366,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut TestAppCon
     );
 
     update_test_project_settings(cx, |project_settings| {
-        project_settings.lsp.0.insert(
+        project_settings.lsp.insert(
             language_server_name.into(),
             LspSettings {
                 binary: None,
@@ -18384,7 +18387,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut TestAppCon
     );
 
     update_test_project_settings(cx, |project_settings| {
-        project_settings.lsp.0.insert(
+        project_settings.lsp.insert(
             language_server_name.into(),
             LspSettings {
                 binary: None,
@@ -18405,7 +18408,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut TestAppCon
     );
 
     update_test_project_settings(cx, |project_settings| {
-        project_settings.lsp.0.insert(
+        project_settings.lsp.insert(
             language_server_name.into(),
             LspSettings {
                 binary: None,
@@ -19880,9 +19883,7 @@ async fn test_multibuffer_reverts(cx: &mut TestAppContext) {
             (buffer_2.clone(), base_text_2),
             (buffer_3.clone(), base_text_3),
         ] {
-            let diff = cx.new(|cx| {
-                BufferDiff::new_with_base_text(diff_base, &buffer.read(cx).text_snapshot(), cx)
-            });
+            let diff = cx.new(|cx| BufferDiff::new_with_base_text(diff_base, &buffer, cx));
             editor
                 .buffer
                 .update(cx, |buffer, cx| buffer.add_diff(diff, cx));
@@ -20507,9 +20508,7 @@ async fn test_toggle_diff_expand_in_multi_buffer(cx: &mut TestAppContext) {
                 (buffer_2.clone(), file_2_old),
                 (buffer_3.clone(), file_3_old),
             ] {
-                let diff = cx.new(|cx| {
-                    BufferDiff::new_with_base_text(diff_base, &buffer.read(cx).text_snapshot(), cx)
-                });
+                let diff = cx.new(|cx| BufferDiff::new_with_base_text(diff_base, &buffer, cx));
                 editor
                     .buffer
                     .update(cx, |buffer, cx| buffer.add_diff(diff, cx));
@@ -20615,9 +20614,7 @@ async fn test_expand_diff_hunk_at_excerpt_boundary(cx: &mut TestAppContext) {
         cx.add_window(|window, cx| Editor::new(EditorMode::full(), multi_buffer, None, window, cx));
     editor
         .update(cx, |editor, _window, cx| {
-            let diff = cx.new(|cx| {
-                BufferDiff::new_with_base_text(base, &buffer.read(cx).text_snapshot(), cx)
-            });
+            let diff = cx.new(|cx| BufferDiff::new_with_base_text(base, &buffer, cx));
             editor
                 .buffer
                 .update(cx, |buffer, cx| buffer.add_diff(diff, cx))
@@ -22051,9 +22048,7 @@ async fn test_indent_guide_with_expanded_diff_hunks(cx: &mut TestAppContext) {
 
         editor.buffer().update(cx, |multibuffer, cx| {
             let buffer = multibuffer.as_singleton().unwrap();
-            let diff = cx.new(|cx| {
-                BufferDiff::new_with_base_text(base_text, &buffer.read(cx).text_snapshot(), cx)
-            });
+            let diff = cx.new(|cx| BufferDiff::new_with_base_text(base_text, &buffer, cx));
 
             multibuffer.set_all_diff_hunks_expanded(cx);
             multibuffer.add_diff(diff, cx);
@@ -28638,131 +28633,6 @@ async fn test_sticky_scroll(cx: &mut TestAppContext) {
     assert_eq!(sticky_headers(10.0), vec![]);
 }
 
-#[gpui::test]
-fn test_relative_line_numbers(cx: &mut TestAppContext) {
-    init_test(cx, |_| {});
-
-    let buffer_1 = cx.new(|cx| Buffer::local("aaaaaaaaaa\nbbb\n", cx));
-    let buffer_2 = cx.new(|cx| Buffer::local("cccccccccc\nddd\n", cx));
-    let buffer_3 = cx.new(|cx| Buffer::local("eee\nffffffffff\n", cx));
-
-    let multibuffer = cx.new(|cx| {
-        let mut multibuffer = MultiBuffer::new(ReadWrite);
-        multibuffer.push_excerpts(
-            buffer_1.clone(),
-            [ExcerptRange::new(Point::new(0, 0)..Point::new(2, 0))],
-            cx,
-        );
-        multibuffer.push_excerpts(
-            buffer_2.clone(),
-            [ExcerptRange::new(Point::new(0, 0)..Point::new(2, 0))],
-            cx,
-        );
-        multibuffer.push_excerpts(
-            buffer_3.clone(),
-            [ExcerptRange::new(Point::new(0, 0)..Point::new(2, 0))],
-            cx,
-        );
-        multibuffer
-    });
-
-    // wrapped contents of multibuffer:
-    //    aaa
-    //    aaa
-    //    aaa
-    //    a
-    //    bbb
-    //
-    //    ccc
-    //    ccc
-    //    ccc
-    //    c
-    //    ddd
-    //
-    //    eee
-    //    fff
-    //    fff
-    //    fff
-    //    f
-
-    let (editor, cx) = cx.add_window_view(|window, cx| build_editor(multibuffer, window, cx));
-    editor.update_in(cx, |editor, window, cx| {
-        editor.set_wrap_width(Some(30.0.into()), cx); // every 3 characters
-
-        // includes trailing newlines.
-        let expected_line_numbers = [2, 6, 7, 10, 14, 15, 18, 19, 23];
-        let expected_wrapped_line_numbers = [
-            2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23,
-        ];
-
-        editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
-            s.select_ranges([
-                Point::new(7, 0)..Point::new(7, 1), // second row of `ccc`
-            ]);
-        });
-
-        let snapshot = editor.snapshot(window, cx);
-
-        // these are all 0-indexed
-        let base_display_row = DisplayRow(11);
-        let base_row = 3;
-        let wrapped_base_row = 7;
-
-        // test not counting wrapped lines
-        let expected_relative_numbers = expected_line_numbers
-            .into_iter()
-            .enumerate()
-            .map(|(i, row)| (DisplayRow(row), i.abs_diff(base_row) as u32))
-            .collect_vec();
-        let actual_relative_numbers = snapshot
-            .calculate_relative_line_numbers(
-                &(DisplayRow(0)..DisplayRow(24)),
-                base_display_row,
-                false,
-            )
-            .into_iter()
-            .sorted()
-            .collect_vec();
-        assert_eq!(expected_relative_numbers, actual_relative_numbers);
-        // check `calculate_relative_line_numbers()` against `relative_line_delta()` for each line
-        for (display_row, relative_number) in expected_relative_numbers {
-            assert_eq!(
-                relative_number,
-                snapshot
-                    .relative_line_delta(display_row, base_display_row, false)
-                    .unsigned_abs() as u32,
-            );
-        }
-
-        // test counting wrapped lines
-        let expected_wrapped_relative_numbers = expected_wrapped_line_numbers
-            .into_iter()
-            .enumerate()
-            .map(|(i, row)| (DisplayRow(row), i.abs_diff(wrapped_base_row) as u32))
-            .filter(|(row, _)| *row != base_display_row)
-            .collect_vec();
-        let actual_relative_numbers = snapshot
-            .calculate_relative_line_numbers(
-                &(DisplayRow(0)..DisplayRow(24)),
-                base_display_row,
-                true,
-            )
-            .into_iter()
-            .sorted()
-            .collect_vec();
-        assert_eq!(expected_wrapped_relative_numbers, actual_relative_numbers);
-        // check `calculate_relative_line_numbers()` against `relative_wrapped_line_delta()` for each line
-        for (display_row, relative_number) in expected_wrapped_relative_numbers {
-            assert_eq!(
-                relative_number,
-                snapshot
-                    .relative_line_delta(display_row, base_display_row, true)
-                    .unsigned_abs() as u32,
-            );
-        }
-    });
-}
-
 #[gpui::test]
 async fn test_scroll_by_clicking_sticky_header(cx: &mut TestAppContext) {
     init_test(cx, |_| {});
@@ -29227,6 +29097,208 @@ async fn test_multibuffer_selections_with_folding(cx: &mut TestAppContext) {
         "});
 }
 
+#[gpui::test]
+async fn test_filtered_editor_pair(cx: &mut gpui::TestAppContext) {
+    init_test(cx, |_| {});
+    let mut leader_cx = EditorTestContext::new(cx).await;
+
+    let diff_base = indoc!(
+        r#"
+        one
+        two
+        three
+        four
+        five
+        six
+        "#
+    );
+
+    let initial_state = indoc!(
+        r#"
+        ˇone
+        two
+        THREE
+        four
+        five
+        six
+        "#
+    );
+
+    leader_cx.set_state(initial_state);
+
+    leader_cx.set_head_text(&diff_base);
+    leader_cx.run_until_parked();
+
+    let follower = leader_cx.update_multibuffer(|leader, cx| {
+        leader.set_filter_mode(Some(MultiBufferFilterMode::KeepInsertions));
+        leader.set_all_diff_hunks_expanded(cx);
+        leader.get_or_create_follower(cx)
+    });
+    follower.update(cx, |follower, cx| {
+        follower.set_filter_mode(Some(MultiBufferFilterMode::KeepDeletions));
+        follower.set_all_diff_hunks_expanded(cx);
+    });
+
+    let follower_editor =
+        leader_cx.new_window_entity(|window, cx| build_editor(follower, window, cx));
+    // leader_cx.window.focus(&follower_editor.focus_handle(cx));
+
+    let mut follower_cx = EditorTestContext::for_editor_in(follower_editor, &mut leader_cx).await;
+    cx.run_until_parked();
+
+    leader_cx.assert_editor_state(initial_state);
+    follower_cx.assert_editor_state(indoc! {
+        r#"
+        ˇone
+        two
+        three
+        four
+        five
+        six
+        "#
+    });
+
+    follower_cx.editor(|editor, _window, cx| {
+        assert!(editor.read_only(cx));
+    });
+
+    leader_cx.update_editor(|editor, _window, cx| {
+        editor.edit([(Point::new(4, 0)..Point::new(5, 0), "FIVE\n")], cx);
+    });
+    cx.run_until_parked();
+
+    leader_cx.assert_editor_state(indoc! {
+        r#"
+        ˇone
+        two
+        THREE
+        four
+        FIVE
+        six
+        "#
+    });
+
+    follower_cx.assert_editor_state(indoc! {
+        r#"
+        ˇone
+        two
+        three
+        four
+        five
+        six
+        "#
+    });
+
+    leader_cx.update_editor(|editor, _window, cx| {
+        editor.edit([(Point::new(6, 0)..Point::new(6, 0), "SEVEN")], cx);
+    });
+    cx.run_until_parked();
+
+    leader_cx.assert_editor_state(indoc! {
+        r#"
+        ˇone
+        two
+        THREE
+        four
+        FIVE
+        six
+        SEVEN"#
+    });
+
+    follower_cx.assert_editor_state(indoc! {
+        r#"
+        ˇone
+        two
+        three
+        four
+        five
+        six
+        "#
+    });
+
+    leader_cx.update_editor(|editor, window, cx| {
+        editor.move_down(&MoveDown, window, cx);
+        editor.refresh_selected_text_highlights(true, window, cx);
+    });
+    leader_cx.run_until_parked();
+}
+
+#[gpui::test]
+async fn test_filtered_editor_pair_complex(cx: &mut gpui::TestAppContext) {
+    init_test(cx, |_| {});
+    let base_text = "base\n";
+    let buffer_text = "buffer\n";
+
+    let buffer1 = cx.new(|cx| Buffer::local(buffer_text, cx));
+    let diff1 = cx.new(|cx| BufferDiff::new_with_base_text(base_text, &buffer1, cx));
+
+    let extra_buffer_1 = cx.new(|cx| Buffer::local("dummy text 1\n", cx));
+    let extra_diff_1 = cx.new(|cx| BufferDiff::new_with_base_text("", &extra_buffer_1, cx));
+    let extra_buffer_2 = cx.new(|cx| Buffer::local("dummy text 2\n", cx));
+    let extra_diff_2 = cx.new(|cx| BufferDiff::new_with_base_text("", &extra_buffer_2, cx));
+
+    let leader = cx.new(|cx| {
+        let mut leader = MultiBuffer::new(Capability::ReadWrite);
+        leader.set_all_diff_hunks_expanded(cx);
+        leader.set_filter_mode(Some(MultiBufferFilterMode::KeepInsertions));
+        leader
+    });
+    let follower = leader.update(cx, |leader, cx| leader.get_or_create_follower(cx));
+    follower.update(cx, |follower, _| {
+        follower.set_filter_mode(Some(MultiBufferFilterMode::KeepDeletions));
+    });
+
+    leader.update(cx, |leader, cx| {
+        leader.insert_excerpts_after(
+            ExcerptId::min(),
+            extra_buffer_2.clone(),
+            vec![ExcerptRange::new(text::Anchor::MIN..text::Anchor::MAX)],
+            cx,
+        );
+        leader.add_diff(extra_diff_2.clone(), cx);
+
+        leader.insert_excerpts_after(
+            ExcerptId::min(),
+            extra_buffer_1.clone(),
+            vec![ExcerptRange::new(text::Anchor::MIN..text::Anchor::MAX)],
+            cx,
+        );
+        leader.add_diff(extra_diff_1.clone(), cx);
+
+        leader.insert_excerpts_after(
+            ExcerptId::min(),
+            buffer1.clone(),
+            vec![ExcerptRange::new(text::Anchor::MIN..text::Anchor::MAX)],
+            cx,
+        );
+        leader.add_diff(diff1.clone(), cx);
+    });
+
+    cx.run_until_parked();
+    let mut cx = cx.add_empty_window();
+
+    let leader_editor = cx
+        .new_window_entity(|window, cx| Editor::for_multibuffer(leader.clone(), None, window, cx));
+    let follower_editor = cx.new_window_entity(|window, cx| {
+        Editor::for_multibuffer(follower.clone(), None, window, cx)
+    });
+
+    let mut leader_cx = EditorTestContext::for_editor_in(leader_editor.clone(), &mut cx).await;
+    leader_cx.assert_editor_state(indoc! {"
+       ˇbuffer
+
+       dummy text 1
+
+       dummy text 2
+    "});
+    let mut follower_cx = EditorTestContext::for_editor_in(follower_editor.clone(), &mut cx).await;
+    follower_cx.assert_editor_state(indoc! {"
+        ˇbase
+
+
+    "});
+}
+
 #[gpui::test]
 async fn test_multibuffer_scroll_cursor_top_margin(cx: &mut TestAppContext) {
     init_test(cx, |_| {});
@@ -29405,17 +29477,6 @@ async fn test_newline_task_list_continuation(cx: &mut TestAppContext) {
         - [ ] ˇ
     "});
 
-    // Case 2.1: Works with uppercase checked marker too
-    cx.set_state(indoc! {"
-        - [X] completed taskˇ
-    "});
-    cx.update_editor(|e, window, cx| e.newline(&Newline, window, cx));
-    cx.wait_for_autoindent_applied().await;
-    cx.assert_editor_state(indoc! {"
-        - [X] completed task
-        - [ ] ˇ
-    "});
-
     // Case 3: Cursor position doesn't matter - content after marker is what counts
     cx.set_state(indoc! {"
         - [ ] taˇsk
@@ -29983,14 +30044,11 @@ async fn test_local_worktree_trust(cx: &mut TestAppContext) {
             .map(|wt| wt.read(cx).id())
             .expect("should have a worktree")
     });
-    let worktree_store = project.read_with(cx, |project, _| project.worktree_store());
 
     let trusted_worktrees =
         cx.update(|cx| TrustedWorktrees::try_get_global(cx).expect("trust global should exist"));
 
-    let can_trust = trusted_worktrees.update(cx, |store, cx| {
-        store.can_trust(&worktree_store, worktree_id, cx)
-    });
+    let can_trust = trusted_worktrees.update(cx, |store, cx| store.can_trust(worktree_id, cx));
     assert!(!can_trust, "worktree should be restricted initially");
 
     let buffer_before_approval = project
@@ -30036,8 +30094,8 @@ async fn test_local_worktree_trust(cx: &mut TestAppContext) {
 
     trusted_worktrees.update(cx, |store, cx| {
         store.trust(
-            &worktree_store,
             std::collections::HashSet::from_iter([PathTrust::Worktree(worktree_id)]),
+            None,
             cx,
         );
     });
@@ -30064,9 +30122,8 @@ async fn test_local_worktree_trust(cx: &mut TestAppContext) {
         "inlay hints should be queried after trust approval"
     );
 
-    let can_trust_after = trusted_worktrees.update(cx, |store, cx| {
-        store.can_trust(&worktree_store, worktree_id, cx)
-    });
+    let can_trust_after =
+        trusted_worktrees.update(cx, |store, cx| store.can_trust(worktree_id, cx));
     assert!(can_trust_after, "worktree should be trusted after trust()");
 }
 

crates/editor/src/element.rs

@@ -46,9 +46,9 @@ use gpui::{
     KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
     MouseDownEvent, MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement,
     Pixels, PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
-    Size, StatefulInteractiveElement, Style, Styled, TextAlign, TextRun, TextStyleRefinement,
-    WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline,
-    point, px, quad, relative, size, solid_background, transparent_black,
+    Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
+    Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
+    quad, relative, size, solid_background, transparent_black,
 };
 use itertools::Itertools;
 use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
@@ -66,7 +66,7 @@ use project::{
 };
 use settings::{
     GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
-    RelativeLineNumbers, Settings,
+    Settings,
 };
 use smallvec::{SmallVec, smallvec};
 use std::{
@@ -194,6 +194,8 @@ pub struct EditorElement {
     style: EditorStyle,
 }
 
+type DisplayRowDelta = u32;
+
 impl EditorElement {
     pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
 
@@ -1695,13 +1697,9 @@ impl EditorElement {
                         [cursor_position.row().minus(visible_display_row_range.start) as usize];
                     let cursor_column = cursor_position.column() as usize;
 
-                    let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
-                        + cursor_row_layout
-                            .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
-                    let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
-                        + cursor_row_layout
-                            .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
-                    let mut block_width = cursor_next_x - cursor_character_x;
+                    let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
+                    let mut block_width =
+                        cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
                     if block_width == Pixels::ZERO {
                         block_width = em_advance;
                     }
@@ -3227,6 +3225,64 @@ impl EditorElement {
             .collect()
     }
 
+    fn calculate_relative_line_numbers(
+        &self,
+        snapshot: &EditorSnapshot,
+        rows: &Range<DisplayRow>,
+        relative_to: Option<DisplayRow>,
+        count_wrapped_lines: bool,
+    ) -> HashMap<DisplayRow, DisplayRowDelta> {
+        let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
+        let Some(relative_to) = relative_to else {
+            return relative_rows;
+        };
+
+        let start = rows.start.min(relative_to);
+        let end = rows.end.max(relative_to);
+
+        let buffer_rows = snapshot
+            .row_infos(start)
+            .take(1 + end.minus(start) as usize)
+            .collect::<Vec<_>>();
+
+        let head_idx = relative_to.minus(start);
+        let mut delta = 1;
+        let mut i = head_idx + 1;
+        let should_count_line = |row_info: &RowInfo| {
+            if count_wrapped_lines {
+                row_info.buffer_row.is_some() || row_info.wrapped_buffer_row.is_some()
+            } else {
+                row_info.buffer_row.is_some()
+            }
+        };
+        while i < buffer_rows.len() as u32 {
+            if should_count_line(&buffer_rows[i as usize]) {
+                if rows.contains(&DisplayRow(i + start.0)) {
+                    relative_rows.insert(DisplayRow(i + start.0), delta);
+                }
+                delta += 1;
+            }
+            i += 1;
+        }
+        delta = 1;
+        i = head_idx.min(buffer_rows.len().saturating_sub(1) as u32);
+        while i > 0 && buffer_rows[i as usize].buffer_row.is_none() && !count_wrapped_lines {
+            i -= 1;
+        }
+
+        while i > 0 {
+            i -= 1;
+            if should_count_line(&buffer_rows[i as usize]) {
+                if rows.contains(&DisplayRow(i + start.0)) {
+                    relative_rows.insert(DisplayRow(i + start.0), delta);
+                }
+                delta += 1;
+            }
+        }
+
+        relative_rows
+    }
+
     fn layout_line_numbers(
         &self,
         gutter_hitbox: Option<&Hitbox>,
@@ -3236,7 +3292,7 @@ impl EditorElement {
         rows: Range<DisplayRow>,
         buffer_rows: &[RowInfo],
         active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
-        relative_line_base: Option<DisplayRow>,
+        newest_selection_head: Option<DisplayPoint>,
         snapshot: &EditorSnapshot,
         window: &mut Window,
         cx: &mut App,
@@ -3248,31 +3304,49 @@ impl EditorElement {
             return Arc::default();
         }
 
-        let relative = self.editor.read(cx).relative_line_numbers(cx);
+        let (newest_selection_head, relative) = self.editor.update(cx, |editor, cx| {
+            let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
+                let newest = editor
+                    .selections
+                    .newest::<Point>(&editor.display_snapshot(cx));
+                SelectionLayout::new(
+                    newest,
+                    editor.selections.line_mode(),
+                    editor.cursor_offset_on_selection,
+                    editor.cursor_shape,
+                    &snapshot.display_snapshot,
+                    true,
+                    true,
+                    None,
+                )
+                .head
+            });
+            let relative = editor.relative_line_numbers(cx);
+            (newest_selection_head, relative)
+        });
 
         let relative_line_numbers_enabled = relative.enabled();
-        let relative_rows = if relative_line_numbers_enabled && let Some(base) = relative_line_base
-        {
-            snapshot.calculate_relative_line_numbers(&rows, base, relative.wrapped())
-        } else {
-            Default::default()
-        };
+        let relative_to = relative_line_numbers_enabled.then(|| newest_selection_head.row());
 
+        let relative_rows =
+            self.calculate_relative_line_numbers(snapshot, &rows, relative_to, relative.wrapped());
         let mut line_number = String::new();
         let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
             let display_row = DisplayRow(rows.start.0 + ix as u32);
             line_number.clear();
             let non_relative_number = if relative.wrapped() {
                 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
+            } else if self.editor.read(cx).use_base_text_line_numbers {
+                row_info.base_text_row?.0 + 1
             } else {
                 row_info.buffer_row? + 1
             };
             let relative_number = relative_rows.get(&display_row);
             if !(relative_line_numbers_enabled && relative_number.is_some())
-                && !snapshot.number_deleted_lines
                 && row_info
                     .diff_status
                     .is_some_and(|status| status.is_deleted())
+                && !self.editor.read(cx).use_base_text_line_numbers
             {
                 return None;
             }
@@ -4578,8 +4652,6 @@ impl EditorElement {
         gutter_hitbox: &Hitbox,
         text_hitbox: &Hitbox,
         style: &EditorStyle,
-        relative_line_numbers: RelativeLineNumbers,
-        relative_to: Option<DisplayRow>,
         window: &mut Window,
         cx: &mut App,
     ) -> Option<StickyHeaders> {
@@ -4609,21 +4681,9 @@ impl EditorElement {
             );
 
             let line_number = show_line_numbers.then(|| {
-                let relative_number = relative_to
-                    .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
-                    .map(|base| {
-                        snapshot.relative_line_delta_to_point(
-                            base,
-                            start_point,
-                            relative_line_numbers == RelativeLineNumbers::Wrapped,
-                        )
-                    });
-                let number = relative_number
-                    .filter(|&delta| delta != 0)
-                    .map(|delta| delta.unsigned_abs() as u32)
-                    .unwrap_or(start_point.row + 1);
+                let number = (start_point.row + 1).to_string();
                 let color = cx.theme().colors().editor_line_number;
-                self.shape_line_number(SharedString::from(number.to_string()), color, window)
+                self.shape_line_number(SharedString::from(number), color, window)
             });
 
             lines.push(StickyHeaderLine::new(
@@ -6162,25 +6222,10 @@ impl EditorElement {
                     let color = cx.theme().colors().editor_hover_line_number;
 
                     let line = self.shape_line_number(shaped_line.text.clone(), color, window);
-                    line.paint(
-                        hitbox.origin,
-                        line_height,
-                        TextAlign::Left,
-                        None,
-                        window,
-                        cx,
-                    )
-                    .log_err()
+                    line.paint(hitbox.origin, line_height, window, cx).log_err()
                 } else {
                     shaped_line
-                        .paint(
-                            hitbox.origin,
-                            line_height,
-                            TextAlign::Left,
-                            None,
-                            window,
-                            cx,
-                        )
+                        .paint(hitbox.origin, line_height, window, cx)
                         .log_err()
                 }) else {
                     continue;
@@ -7269,27 +7314,23 @@ impl EditorElement {
                     .map(|row| {
                         let line_layout =
                             &layout.position_map.line_layouts[row.minus(start_row) as usize];
-                        let alignment_offset =
-                            line_layout.alignment_offset(layout.text_align, layout.content_width);
                         HighlightedRangeLine {
                             start_x: if row == range.start.row() {
                                 layout.content_origin.x
                                     + Pixels::from(
                                         ScrollPixelOffset::from(
-                                            line_layout.x_for_index(range.start.column() as usize)
-                                                + alignment_offset,
+                                            line_layout.x_for_index(range.start.column() as usize),
                                         ) - layout.position_map.scroll_pixel_position.x,
                                     )
                             } else {
-                                layout.content_origin.x + alignment_offset
+                                layout.content_origin.x
                                     - Pixels::from(layout.position_map.scroll_pixel_position.x)
                             },
                             end_x: if row == range.end.row() {
                                 layout.content_origin.x
                                     + Pixels::from(
                                         ScrollPixelOffset::from(
-                                            line_layout.x_for_index(range.end.column() as usize)
-                                                + alignment_offset,
+                                            line_layout.x_for_index(range.end.column() as usize),
                                         ) - layout.position_map.scroll_pixel_position.x,
                                     )
                             } else {
@@ -7297,7 +7338,6 @@ impl EditorElement {
                                     ScrollPixelOffset::from(
                                         layout.content_origin.x
                                             + line_layout.width
-                                            + alignment_offset
                                             + line_end_overshoot,
                                     ) - layout.position_map.scroll_pixel_position.x,
                                 )
@@ -8538,15 +8578,8 @@ impl LineWithInvisibles {
         for fragment in &self.fragments {
             match fragment {
                 LineFragment::Text(line) => {
-                    line.paint(
-                        fragment_origin,
-                        line_height,
-                        layout.text_align,
-                        Some(layout.content_width),
-                        window,
-                        cx,
-                    )
-                    .log_err();
+                    line.paint(fragment_origin, line_height, window, cx)
+                        .log_err();
                     fragment_origin.x += line.width;
                 }
                 LineFragment::Element { size, .. } => {
@@ -8588,15 +8621,8 @@ impl LineWithInvisibles {
         for fragment in &self.fragments {
             match fragment {
                 LineFragment::Text(line) => {
-                    line.paint_background(
-                        fragment_origin,
-                        line_height,
-                        layout.text_align,
-                        Some(layout.content_width),
-                        window,
-                        cx,
-                    )
-                    .log_err();
+                    line.paint_background(fragment_origin, line_height, window, cx)
+                        .log_err();
                     fragment_origin.x += line.width;
                 }
                 LineFragment::Element { size, .. } => {
@@ -8645,7 +8671,7 @@ impl LineWithInvisibles {
                 [token_offset, token_end_offset],
                 Box::new(move |window: &mut Window, cx: &mut App| {
                     invisible_symbol
-                        .paint(origin, line_height, TextAlign::Left, None, window, cx)
+                        .paint(origin, line_height, window, cx)
                         .log_err();
                 }),
             )
@@ -8806,15 +8832,6 @@ impl LineWithInvisibles {
 
         None
     }
-
-    pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
-        let line_width = self.width;
-        match text_align {
-            TextAlign::Left => px(0.0),
-            TextAlign::Center => (content_width - line_width) / 2.0,
-            TextAlign::Right => content_width - line_width,
-        }
-    }
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -9053,8 +9070,14 @@ impl Element for EditorElement {
                     let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
                     let glyph_grid_cell = size(em_advance, line_height);
 
-                    let gutter_dimensions =
-                        snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
+                    let gutter_dimensions = snapshot
+                        .gutter_dimensions(
+                            font_id,
+                            font_size,
+                            style,
+                            window,
+                            cx,
+                        );
                     let text_width = bounds.size.width - gutter_dimensions.width;
 
                     let settings = EditorSettings::get_global(cx);
@@ -9268,10 +9291,10 @@ impl Element for EditorElement {
                         };
 
                         let background_color = match diff_status.kind {
-                            DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
-                            DiffHunkStatusKind::Deleted => {
-                                cx.theme().colors().version_control_deleted
-                            }
+                            DiffHunkStatusKind::Added =>
+                                cx.theme().colors().version_control_added,
+                            DiffHunkStatusKind::Deleted =>
+                                cx.theme().colors().version_control_deleted,
                             DiffHunkStatusKind::Modified => {
                                 debug_panic!("modified diff status for row info");
                                 continue;
@@ -9413,29 +9436,6 @@ impl Element for EditorElement {
                             window,
                             cx,
                         );
-
-                    // relative rows are based on newest selection, even outside the visible area
-                    let relative_row_base = self.editor.update(cx, |editor, cx| {
-                        (editor.selections.count() != 0).then(|| {
-                            let newest = editor
-                                .selections
-                                .newest::<Point>(&editor.display_snapshot(cx));
-
-                            SelectionLayout::new(
-                                newest,
-                                editor.selections.line_mode(),
-                                editor.cursor_offset_on_selection,
-                                editor.cursor_shape,
-                                &snapshot,
-                                true,
-                                true,
-                                None,
-                            )
-                            .head
-                            .row()
-                        })
-                    });
-
                     let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
                         editor.active_breakpoints(start_row..end_row, window, cx)
                     });
@@ -9453,7 +9453,7 @@ impl Element for EditorElement {
                         start_row..end_row,
                         &row_infos,
                         &active_rows,
-                        relative_row_base,
+                        newest_selection_head,
                         &snapshot,
                         window,
                         cx,
@@ -9594,10 +9594,9 @@ impl Element for EditorElement {
                                 cx,
                             );
                         } else {
-                            debug_panic!(concat!(
-                                "skipping recursive prepaint at max depth. ",
-                                "renderer widths may be stale."
-                            ));
+                            debug_panic!(
+                                "skipping recursive prepaint at max depth. renderer widths may be stale."
+                            );
                         }
                     }
 
@@ -9709,10 +9708,9 @@ impl Element for EditorElement {
                                 cx,
                             );
                         } else {
-                            debug_panic!(concat!(
-                                "skipping recursive prepaint at max depth. ",
-                                "block layout may be stale."
-                            ));
+                            debug_panic!(
+                                "skipping recursive prepaint at max depth. block layout may be stale."
+                            );
                         }
                     }
 
@@ -9775,7 +9773,6 @@ impl Element for EditorElement {
                         && is_singleton
                         && EditorSettings::get_global(cx).sticky_scroll.enabled
                     {
-                        let relative = self.editor.read(cx).relative_line_numbers(cx);
                         self.layout_sticky_headers(
                             &snapshot,
                             editor_width,
@@ -9787,8 +9784,6 @@ impl Element for EditorElement {
                             &gutter_hitbox,
                             &text_hitbox,
                             &style,
-                            relative,
-                            relative_row_base,
                             window,
                             cx,
                         )
@@ -10214,8 +10209,6 @@ impl Element for EditorElement {
                         em_width,
                         em_advance,
                         snapshot,
-                        text_align: self.style.text.text_align,
-                        content_width: text_hitbox.size.width,
                         gutter_hitbox: gutter_hitbox.clone(),
                         text_hitbox: text_hitbox.clone(),
                         inline_blame_bounds: inline_blame_layout
@@ -10269,8 +10262,6 @@ impl Element for EditorElement {
                         sticky_buffer_header,
                         sticky_headers,
                         expand_toggles,
-                        text_align: self.style.text.text_align,
-                        content_width: text_hitbox.size.width,
                     }
                 })
             })
@@ -10451,8 +10442,6 @@ pub struct EditorLayout {
     sticky_buffer_header: Option<AnyElement>,
     sticky_headers: Option<StickyHeaders>,
     document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
-    text_align: TextAlign,
-    content_width: Pixels,
 }
 
 struct StickyHeaders {
@@ -10620,9 +10609,7 @@ impl StickyHeaderLine {
                 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
                 gutter_origin.y,
             );
-            line_number
-                .paint(origin, line_height, TextAlign::Left, None, window, cx)
-                .log_err();
+            line_number.paint(origin, line_height, window, cx).log_err();
         }
     }
 }
@@ -11061,8 +11048,6 @@ pub(crate) struct PositionMap {
     pub visible_row_range: Range<DisplayRow>,
     pub line_layouts: Vec<LineWithInvisibles>,
     pub snapshot: EditorSnapshot,
-    pub text_align: TextAlign,
-    pub content_width: Pixels,
     pub text_hitbox: Hitbox,
     pub gutter_hitbox: Hitbox,
     pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
@@ -11128,12 +11113,10 @@ impl PositionMap {
             .line_layouts
             .get(row as usize - scroll_position.y as usize)
         {
-            let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
-            let x_relative_to_text = x - alignment_offset;
-            if let Some(ix) = line.index_for_x(x_relative_to_text) {
+            if let Some(ix) = line.index_for_x(x) {
                 (ix as u32, px(0.))
             } else {
-                (line.len as u32, px(0.).max(x_relative_to_text - line.width))
+                (line.len as u32, px(0.).max(x - line.width))
             }
         } else {
             (0, x)
@@ -11322,14 +11305,7 @@ impl CursorLayout {
 
         if let Some(block_text) = &self.block_text {
             block_text
-                .paint(
-                    self.origin + origin,
-                    self.line_height,
-                    TextAlign::Left,
-                    None,
-                    window,
-                    cx,
-                )
+                .paint(self.origin + origin, self.line_height, window, cx)
                 .log_err();
         }
     }
@@ -11655,7 +11631,7 @@ mod tests {
     }
 
     #[gpui::test]
-    fn test_layout_line_numbers(cx: &mut TestAppContext) {
+    fn test_shape_line_numbers(cx: &mut TestAppContext) {
         init_test(cx, |_| {});
         let window = cx.add_window(|window, cx| {
             let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
@@ -11695,7 +11671,7 @@ mod tests {
                         })
                         .collect::<Vec<_>>(),
                     &BTreeMap::default(),
-                    Some(DisplayRow(0)),
+                    Some(DisplayPoint::new(DisplayRow(0), 0)),
                     &snapshot,
                     window,
                     cx,
@@ -11707,9 +11683,10 @@ mod tests {
         let relative_rows = window
             .update(cx, |editor, window, cx| {
                 let snapshot = editor.snapshot(window, cx);
-                snapshot.calculate_relative_line_numbers(
+                element.calculate_relative_line_numbers(
+                    &snapshot,
                     &(DisplayRow(0)..DisplayRow(6)),
-                    DisplayRow(3),
+                    Some(DisplayRow(3)),
                     false,
                 )
             })
@@ -11718,7 +11695,6 @@ mod tests {
         assert_eq!(relative_rows[&DisplayRow(1)], 2);
         assert_eq!(relative_rows[&DisplayRow(2)], 1);
         // current line has no relative number
-        assert!(!relative_rows.contains_key(&DisplayRow(3)));
         assert_eq!(relative_rows[&DisplayRow(4)], 1);
         assert_eq!(relative_rows[&DisplayRow(5)], 2);
 
@@ -11726,9 +11702,10 @@ mod tests {
         let relative_rows = window
             .update(cx, |editor, window, cx| {
                 let snapshot = editor.snapshot(window, cx);
-                snapshot.calculate_relative_line_numbers(
+                element.calculate_relative_line_numbers(
+                    &snapshot,
                     &(DisplayRow(3)..DisplayRow(6)),
-                    DisplayRow(1),
+                    Some(DisplayRow(1)),
                     false,
                 )
             })
@@ -11742,9 +11719,10 @@ mod tests {
         let relative_rows = window
             .update(cx, |editor, window, cx| {
                 let snapshot = editor.snapshot(window, cx);
-                snapshot.calculate_relative_line_numbers(
+                element.calculate_relative_line_numbers(
+                    &snapshot,
                     &(DisplayRow(0)..DisplayRow(3)),
-                    DisplayRow(6),
+                    Some(DisplayRow(6)),
                     false,
                 )
             })
@@ -11781,7 +11759,7 @@ mod tests {
                         })
                         .collect::<Vec<_>>(),
                     &BTreeMap::default(),
-                    Some(DisplayRow(0)),
+                    Some(DisplayPoint::new(DisplayRow(0), 0)),
                     &snapshot,
                     window,
                     cx,
@@ -11796,7 +11774,7 @@ mod tests {
     }
 
     #[gpui::test]
-    fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
+    fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
         init_test(cx, |_| {});
         let window = cx.add_window(|window, cx| {
             let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
@@ -11841,7 +11819,7 @@ mod tests {
                         })
                         .collect::<Vec<_>>(),
                     &BTreeMap::default(),
-                    Some(DisplayRow(0)),
+                    Some(DisplayPoint::new(DisplayRow(0), 0)),
                     &snapshot,
                     window,
                     cx,
@@ -11853,9 +11831,10 @@ mod tests {
         let relative_rows = window
             .update(cx, |editor, window, cx| {
                 let snapshot = editor.snapshot(window, cx);
-                snapshot.calculate_relative_line_numbers(
+                element.calculate_relative_line_numbers(
+                    &snapshot,
                     &(DisplayRow(0)..DisplayRow(6)),
-                    DisplayRow(3),
+                    Some(DisplayRow(3)),
                     true,
                 )
             })
@@ -11865,7 +11844,6 @@ mod tests {
         assert_eq!(relative_rows[&DisplayRow(1)], 2);
         assert_eq!(relative_rows[&DisplayRow(2)], 1);
         // current line has no relative number
-        assert!(!relative_rows.contains_key(&DisplayRow(3)));
         assert_eq!(relative_rows[&DisplayRow(4)], 1);
         assert_eq!(relative_rows[&DisplayRow(5)], 2);
 
@@ -11893,7 +11871,7 @@ mod tests {
                         })
                         .collect::<Vec<_>>(),
                     &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
-                    Some(DisplayRow(0)),
+                    Some(DisplayPoint::new(DisplayRow(0), 0)),
                     &snapshot,
                     window,
                     cx,
@@ -11908,9 +11886,10 @@ mod tests {
         let relative_rows = window
             .update(cx, |editor, window, cx| {
                 let snapshot = editor.snapshot(window, cx);
-                snapshot.calculate_relative_line_numbers(
+                element.calculate_relative_line_numbers(
+                    &snapshot,
                     &(DisplayRow(0)..DisplayRow(6)),
-                    DisplayRow(3),
+                    Some(DisplayRow(3)),
                     true,
                 )
             })
@@ -11921,7 +11900,6 @@ mod tests {
         assert_eq!(relative_rows[&DisplayRow(1)], 2);
         assert_eq!(relative_rows[&DisplayRow(2)], 1);
         // current line, even if deleted, has no relative number
-        assert!(!relative_rows.contains_key(&DisplayRow(3)));
         assert_eq!(relative_rows[&DisplayRow(4)], 1);
         assert_eq!(relative_rows[&DisplayRow(5)], 2);
     }

crates/editor/src/hover_popover.rs

@@ -24,7 +24,7 @@ use std::{borrow::Cow, cell::RefCell};
 use std::{ops::Range, sync::Arc, time::Duration};
 use std::{path::PathBuf, rc::Rc};
 use theme::ThemeSettings;
-use ui::{CopyButton, Scrollbars, WithScrollbar, prelude::*, theme_is_transparent};
+use ui::{Scrollbars, WithScrollbar, prelude::*, theme_is_transparent};
 use url::Url;
 use util::TryFutureExt;
 use workspace::{OpenOptions, OpenVisible, Workspace};
@@ -994,13 +994,11 @@ impl DiagnosticPopover {
                     .border_color(self.border_color)
                     .rounded_lg()
                     .child(
-                        h_flex()
+                        div()
                             .id("diagnostic-content-container")
-                            .gap_1()
-                            .items_start()
+                            .overflow_y_scroll()
                             .max_w(max_size.width)
                             .max_h(max_size.height)
-                            .overflow_y_scroll()
                             .track_scroll(&self.scroll_handle)
                             .child(
                                 MarkdownElement::new(
@@ -1023,11 +1021,7 @@ impl DiagnosticPopover {
                                         }
                                     },
                                 ),
-                            )
-                            .child({
-                                let message = self.local_diagnostic.diagnostic.message.clone();
-                                CopyButton::new(message).tooltip_label("Copy Diagnostic")
-                            }),
+                            ),
                     )
                     .custom_scrollbars(
                         Scrollbars::for_settings::<EditorSettings>()

crates/editor/src/items.rs

@@ -17,8 +17,8 @@ use gpui::{
     ParentElement, Pixels, SharedString, Styled, Task, WeakEntity, Window, point,
 };
 use language::{
-    Bias, Buffer, BufferRow, CharKind, CharScopeContext, LocalFile, Point, SelectionGoal,
-    proto::serialize_anchor as serialize_text_anchor,
+    Bias, Buffer, BufferRow, CharKind, CharScopeContext, DiskState, LocalFile, Point,
+    SelectionGoal, proto::serialize_anchor as serialize_text_anchor,
 };
 use lsp::DiagnosticSeverity;
 use multi_buffer::MultiBufferOffset;
@@ -722,7 +722,7 @@ impl Item for Editor {
             .read(cx)
             .as_singleton()
             .and_then(|buffer| buffer.read(cx).file())
-            .is_some_and(|file| file.disk_state().is_deleted());
+            .is_some_and(|file| file.disk_state() == DiskState::Deleted);
 
         h_flex()
             .gap_2()

crates/editor/src/mouse_context_menu.rs

@@ -164,6 +164,11 @@ pub fn deploy_context_menu(
         window.focus(&editor.focus_handle(cx), cx);
     }
 
+    // Don't show context menu for inline editors
+    if !editor.mode().is_full() {
+        return;
+    }
+
     let display_map = editor.display_snapshot(cx);
     let source_anchor = display_map.display_point_to_anchor(point, text::Bias::Right);
     let context_menu = if let Some(custom) = editor.custom_context_menu.take() {
@@ -174,11 +179,6 @@ pub fn deploy_context_menu(
         };
         menu
     } else {
-        // Don't show context menu for inline editors (only applies to default menu)
-        if !editor.mode().is_full() {
-            return;
-        }
-
         // Don't show the context menu if there isn't a project associated with this editor
         let Some(project) = editor.project.clone() else {
             return;

crates/editor/src/split.rs

@@ -1,16 +1,9 @@
-use std::ops::Range;
-
-use buffer_diff::BufferDiff;
-use collections::HashMap;
 use feature_flags::{FeatureFlag, FeatureFlagAppExt as _};
 use gpui::{
     Action, AppContext as _, Entity, EventEmitter, Focusable, NoAction, Subscription, WeakEntity,
 };
-use language::{Buffer, Capability};
-use multi_buffer::{Anchor, ExcerptId, ExcerptRange, ExpandExcerptDirection, MultiBuffer, PathKey};
+use multi_buffer::{MultiBuffer, MultiBufferFilterMode};
 use project::Project;
-use rope::Point;
-use text::{Bias, OffsetRangeExt as _};
 use ui::{
     App, Context, InteractiveElement as _, IntoElement as _, ParentElement as _, Render,
     Styled as _, Window, div,
@@ -40,7 +33,6 @@ struct SplitDiff;
 struct UnsplitDiff;
 
 pub struct SplittableEditor {
-    primary_multibuffer: Entity<MultiBuffer>,
     primary_editor: Entity<Editor>,
     secondary: Option<SecondaryEditor>,
     panes: PaneGroup,
@@ -49,12 +41,9 @@ pub struct SplittableEditor {
 }
 
 struct SecondaryEditor {
-    multibuffer: Entity<MultiBuffer>,
     editor: Entity<Editor>,
     pane: Entity<Pane>,
     has_latest_selection: bool,
-    primary_to_secondary: HashMap<ExcerptId, ExcerptId>,
-    secondary_to_primary: HashMap<ExcerptId, ExcerptId>,
     _subscriptions: Vec<Subscription>,
 }
 
@@ -74,22 +63,14 @@ impl SplittableEditor {
     }
 
     pub fn new_unsplit(
-        primary_multibuffer: Entity<MultiBuffer>,
+        buffer: Entity<MultiBuffer>,
         project: Entity<Project>,
         workspace: Entity<Workspace>,
         window: &mut Window,
         cx: &mut Context<Self>,
     ) -> Self {
-        let primary_editor = cx.new(|cx| {
-            let mut editor = Editor::for_multibuffer(
-                primary_multibuffer.clone(),
-                Some(project.clone()),
-                window,
-                cx,
-            );
-            editor.set_expand_all_diff_hunks(cx);
-            editor
-        });
+        let primary_editor =
+            cx.new(|cx| Editor::for_multibuffer(buffer, Some(project.clone()), window, cx));
         let pane = cx.new(|cx| {
             let mut pane = Pane::new(
                 workspace.downgrade(),
@@ -107,25 +88,17 @@ impl SplittableEditor {
         });
         let panes = PaneGroup::new(pane);
         // TODO(split-diff) we might want to tag editor events with whether they came from primary/secondary
-        let subscriptions = vec![cx.subscribe(
-            &primary_editor,
-            |this, _, event: &EditorEvent, cx| match event {
-                EditorEvent::ExpandExcerptsRequested {
-                    excerpt_ids,
-                    lines,
-                    direction,
-                } => {
-                    this.expand_excerpts(excerpt_ids.iter().copied(), *lines, *direction, cx);
-                }
-                EditorEvent::SelectionsChanged { .. } => {
-                    if let Some(secondary) = &mut this.secondary {
+        let subscriptions =
+            vec![
+                cx.subscribe(&primary_editor, |this, _, event: &EditorEvent, cx| {
+                    if let EditorEvent::SelectionsChanged { .. } = event
+                        && let Some(secondary) = &mut this.secondary
+                    {
                         secondary.has_latest_selection = false;
                     }
-                    cx.emit(event.clone());
-                }
-                _ => cx.emit(event.clone()),
-            },
-        )];
+                    cx.emit(event.clone())
+                }),
+            ];
 
         window.defer(cx, {
             let workspace = workspace.downgrade();
@@ -142,7 +115,6 @@ impl SplittableEditor {
         });
         Self {
             primary_editor,
-            primary_multibuffer,
             secondary: None,
             panes,
             workspace: workspace.downgrade(),
@@ -161,22 +133,24 @@ impl SplittableEditor {
             return;
         };
         let project = workspace.read(cx).project().clone();
-
-        let secondary_multibuffer = cx.new(|cx| {
-            let mut multibuffer = MultiBuffer::new(Capability::ReadOnly);
-            multibuffer.set_all_diff_hunks_expanded(cx);
-            multibuffer
+        let follower = self.primary_editor.update(cx, |primary, cx| {
+            primary.buffer().update(cx, |buffer, cx| {
+                let follower = buffer.get_or_create_follower(cx);
+                buffer.set_filter_mode(Some(MultiBufferFilterMode::KeepInsertions));
+                follower
+            })
         });
-        let secondary_editor = cx.new(|cx| {
-            let mut editor = Editor::for_multibuffer(
-                secondary_multibuffer.clone(),
-                Some(project.clone()),
-                window,
-                cx,
-            );
-            editor.number_deleted_lines = true;
-            editor.set_delegate_expand_excerpts(true);
-            editor
+        follower.update(cx, |follower, _| {
+            follower.set_filter_mode(Some(MultiBufferFilterMode::KeepDeletions));
+        });
+        let secondary_editor = workspace.update(cx, |workspace, cx| {
+            cx.new(|cx| {
+                let mut editor = Editor::for_multibuffer(follower, Some(project), window, cx);
+                // TODO(split-diff) this should be at the multibuffer level
+                editor.set_use_base_text_line_numbers(true, cx);
+                editor.added_to_workspace(workspace, window, cx);
+                editor
+            })
         });
         let secondary_pane = cx.new(|cx| {
             let mut pane = Pane::new(
@@ -201,59 +175,23 @@ impl SplittableEditor {
             pane
         });
 
-        let subscriptions = vec![cx.subscribe(
-            &secondary_editor,
-            |this, _, event: &EditorEvent, cx| match event {
-                EditorEvent::ExpandExcerptsRequested {
-                    excerpt_ids,
-                    lines,
-                    direction,
-                } => {
-                    if let Some(secondary) = &this.secondary {
-                        let primary_ids: Vec<_> = excerpt_ids
-                            .iter()
-                            .filter_map(|id| secondary.secondary_to_primary.get(id).copied())
-                            .collect();
-                        this.expand_excerpts(primary_ids.into_iter(), *lines, *direction, cx);
-                    }
-                }
-                EditorEvent::SelectionsChanged { .. } => {
-                    if let Some(secondary) = &mut this.secondary {
+        let subscriptions =
+            vec![
+                cx.subscribe(&secondary_editor, |this, _, event: &EditorEvent, cx| {
+                    if let EditorEvent::SelectionsChanged { .. } = event
+                        && let Some(secondary) = &mut this.secondary
+                    {
                         secondary.has_latest_selection = true;
                     }
-                    cx.emit(event.clone());
-                }
-                _ => cx.emit(event.clone()),
-            },
-        )];
-        let mut secondary = SecondaryEditor {
+                    cx.emit(event.clone())
+                }),
+            ];
+        self.secondary = Some(SecondaryEditor {
             editor: secondary_editor,
-            multibuffer: secondary_multibuffer,
             pane: secondary_pane.clone(),
             has_latest_selection: false,
-            primary_to_secondary: HashMap::default(),
-            secondary_to_primary: HashMap::default(),
             _subscriptions: subscriptions,
-        };
-        self.primary_editor.update(cx, |editor, cx| {
-            editor.set_delegate_expand_excerpts(true);
-            editor.buffer().update(cx, |primary_multibuffer, cx| {
-                primary_multibuffer.set_show_deleted_hunks(false, cx);
-                let paths = primary_multibuffer.paths().cloned().collect::<Vec<_>>();
-                for path in paths {
-                    let Some(excerpt_id) = primary_multibuffer.excerpts_for_path(&path).next()
-                    else {
-                        continue;
-                    };
-                    let snapshot = primary_multibuffer.snapshot(cx);
-                    let buffer = snapshot.buffer_for_excerpt(excerpt_id).unwrap();
-                    let diff = primary_multibuffer.diff_for(buffer.remote_id()).unwrap();
-                    secondary.sync_path_excerpts(path.clone(), primary_multibuffer, diff, cx);
-                }
-            })
         });
-        self.secondary = Some(secondary);
-
         let primary_pane = self.panes.first_pane();
         self.panes
             .split(&primary_pane, &secondary_pane, SplitDirection::Left, cx)
@@ -267,9 +205,8 @@ impl SplittableEditor {
         };
         self.panes.remove(&secondary.pane, cx).unwrap();
         self.primary_editor.update(cx, |primary, cx| {
-            primary.set_delegate_expand_excerpts(false);
-            primary.buffer().update(cx, |buffer, cx| {
-                buffer.set_show_deleted_hunks(true, cx);
+            primary.buffer().update(cx, |buffer, _| {
+                buffer.set_filter_mode(None);
             });
         });
         cx.notify();
@@ -291,299 +228,6 @@ impl SplittableEditor {
             });
         }
     }
-
-    pub fn set_excerpts_for_path(
-        &mut self,
-        path: PathKey,
-        buffer: Entity<Buffer>,
-        ranges: impl IntoIterator<Item = Range<Point>> + Clone,
-        context_line_count: u32,
-        diff: Entity<BufferDiff>,
-        cx: &mut Context<Self>,
-    ) -> (Vec<Range<Anchor>>, bool) {
-        self.primary_multibuffer
-            .update(cx, |primary_multibuffer, cx| {
-                let (anchors, added_a_new_excerpt) = primary_multibuffer.set_excerpts_for_path(
-                    path.clone(),
-                    buffer,
-                    ranges,
-                    context_line_count,
-                    cx,
-                );
-                primary_multibuffer.add_diff(diff.clone(), cx);
-                if let Some(secondary) = &mut self.secondary {
-                    secondary.sync_path_excerpts(path, primary_multibuffer, diff, cx);
-                }
-                (anchors, added_a_new_excerpt)
-            })
-    }
-
-    fn expand_excerpts(
-        &mut self,
-        excerpt_ids: impl Iterator<Item = ExcerptId> + Clone,
-        lines: u32,
-        direction: ExpandExcerptDirection,
-        cx: &mut Context<Self>,
-    ) {
-        let mut corresponding_paths = HashMap::default();
-        self.primary_multibuffer.update(cx, |multibuffer, cx| {
-            let snapshot = multibuffer.snapshot(cx);
-            if self.secondary.is_some() {
-                corresponding_paths = excerpt_ids
-                    .clone()
-                    .map(|excerpt_id| {
-                        let path = multibuffer.path_for_excerpt(excerpt_id).unwrap();
-                        let buffer = snapshot.buffer_for_excerpt(excerpt_id).unwrap();
-                        let diff = multibuffer.diff_for(buffer.remote_id()).unwrap();
-                        (path, diff)
-                    })
-                    .collect::<HashMap<_, _>>();
-            }
-            multibuffer.expand_excerpts(excerpt_ids.clone(), lines, direction, cx);
-        });
-
-        if let Some(secondary) = &mut self.secondary {
-            self.primary_multibuffer.update(cx, |multibuffer, cx| {
-                for (path, diff) in corresponding_paths {
-                    secondary.sync_path_excerpts(path, multibuffer, diff, cx);
-                }
-            })
-        }
-    }
-
-    pub fn remove_excerpts_for_path(&mut self, path: PathKey, cx: &mut Context<Self>) {
-        self.primary_multibuffer.update(cx, |buffer, cx| {
-            buffer.remove_excerpts_for_path(path.clone(), cx)
-        });
-        if let Some(secondary) = &mut self.secondary {
-            secondary.remove_mappings_for_path(&path, cx);
-            secondary
-                .multibuffer
-                .update(cx, |buffer, cx| buffer.remove_excerpts_for_path(path, cx))
-        }
-    }
-}
-
-#[cfg(test)]
-impl SplittableEditor {
-    fn check_invariants(&self, quiesced: bool, cx: &App) {
-        use buffer_diff::DiffHunkStatusKind;
-        use collections::HashSet;
-        use multi_buffer::MultiBufferOffset;
-        use multi_buffer::MultiBufferRow;
-        use multi_buffer::MultiBufferSnapshot;
-
-        fn format_diff(snapshot: &MultiBufferSnapshot) -> String {
-            let text = snapshot.text();
-            let row_infos = snapshot.row_infos(MultiBufferRow(0)).collect::<Vec<_>>();
-            let boundary_rows = snapshot
-                .excerpt_boundaries_in_range(MultiBufferOffset(0)..)
-                .map(|b| b.row)
-                .collect::<HashSet<_>>();
-
-            text.split('\n')
-                .enumerate()
-                .zip(row_infos)
-                .map(|((ix, line), info)| {
-                    let marker = match info.diff_status.map(|status| status.kind) {
-                        Some(DiffHunkStatusKind::Added) => "+ ",
-                        Some(DiffHunkStatusKind::Deleted) => "- ",
-                        Some(DiffHunkStatusKind::Modified) => unreachable!(),
-                        None => {
-                            if !line.is_empty() {
-                                "  "
-                            } else {
-                                ""
-                            }
-                        }
-                    };
-                    let boundary_row = if boundary_rows.contains(&MultiBufferRow(ix as u32)) {
-                        "  ----------\n"
-                    } else {
-                        ""
-                    };
-                    let expand = info
-                        .expand_info
-                        .map(|expand_info| match expand_info.direction {
-                            ExpandExcerptDirection::Up => " [↑]",
-                            ExpandExcerptDirection::Down => " [↓]",
-                            ExpandExcerptDirection::UpAndDown => " [↕]",
-                        })
-                        .unwrap_or_default();
-
-                    format!("{boundary_row}{marker}{line}{expand}")
-                })
-                .collect::<Vec<_>>()
-                .join("\n")
-        }
-
-        let Some(secondary) = &self.secondary else {
-            return;
-        };
-
-        log::info!(
-            "primary:\n\n{}",
-            format_diff(&self.primary_multibuffer.read(cx).snapshot(cx))
-        );
-
-        log::info!(
-            "secondary:\n\n{}",
-            format_diff(&secondary.multibuffer.read(cx).snapshot(cx))
-        );
-
-        let primary_excerpts = self.primary_multibuffer.read(cx).excerpt_ids();
-        let secondary_excerpts = secondary.multibuffer.read(cx).excerpt_ids();
-        assert_eq!(primary_excerpts.len(), secondary_excerpts.len());
-
-        assert_eq!(
-            secondary.primary_to_secondary.len(),
-            primary_excerpts.len(),
-            "primary_to_secondary mapping count should match excerpt count"
-        );
-        assert_eq!(
-            secondary.secondary_to_primary.len(),
-            secondary_excerpts.len(),
-            "secondary_to_primary mapping count should match excerpt count"
-        );
-
-        for primary_id in &primary_excerpts {
-            assert!(
-                secondary.primary_to_secondary.contains_key(primary_id),
-                "primary excerpt {:?} should have a mapping to secondary",
-                primary_id
-            );
-        }
-        for secondary_id in &secondary_excerpts {
-            assert!(
-                secondary.secondary_to_primary.contains_key(secondary_id),
-                "secondary excerpt {:?} should have a mapping to primary",
-                secondary_id
-            );
-        }
-
-        for (primary_id, secondary_id) in &secondary.primary_to_secondary {
-            assert_eq!(
-                secondary.secondary_to_primary.get(secondary_id),
-                Some(primary_id),
-                "mappings should be bijective"
-            );
-        }
-
-        if quiesced {
-            let primary_snapshot = self.primary_multibuffer.read(cx).snapshot(cx);
-            let secondary_snapshot = secondary.multibuffer.read(cx).snapshot(cx);
-            let primary_diff_hunks = primary_snapshot
-                .diff_hunks()
-                .map(|hunk| hunk.diff_base_byte_range)
-                .collect::<Vec<_>>();
-            let secondary_diff_hunks = secondary_snapshot
-                .diff_hunks()
-                .map(|hunk| hunk.diff_base_byte_range)
-                .collect::<Vec<_>>();
-            pretty_assertions::assert_eq!(primary_diff_hunks, secondary_diff_hunks);
-
-            // Filtering out empty lines is a bit of a hack, to work around a case where
-            // the base text has a trailing newline but the current text doesn't, or vice versa.
-            // In this case, we get the additional newline on one side, but that line is not
-            // marked as added/deleted by rowinfos.
-            let primary_unmodified_rows = primary_snapshot
-                .text()
-                .split("\n")
-                .zip(primary_snapshot.row_infos(MultiBufferRow(0)))
-                .filter(|(line, row_info)| !line.is_empty() && row_info.diff_status.is_none())
-                .map(|(line, _)| line.to_owned())
-                .collect::<Vec<_>>();
-            let secondary_unmodified_rows = secondary_snapshot
-                .text()
-                .split("\n")
-                .zip(secondary_snapshot.row_infos(MultiBufferRow(0)))
-                .filter(|(line, row_info)| !line.is_empty() && row_info.diff_status.is_none())
-                .map(|(line, _)| line.to_owned())
-                .collect::<Vec<_>>();
-            pretty_assertions::assert_eq!(primary_unmodified_rows, secondary_unmodified_rows);
-        }
-    }
-
-    fn randomly_edit_excerpts(
-        &mut self,
-        rng: &mut impl rand::Rng,
-        mutation_count: usize,
-        cx: &mut Context<Self>,
-    ) {
-        use collections::HashSet;
-        use rand::prelude::*;
-        use std::env;
-        use util::RandomCharIter;
-
-        let max_excerpts = env::var("MAX_EXCERPTS")
-            .map(|i| i.parse().expect("invalid `MAX_EXCERPTS` variable"))
-            .unwrap_or(5);
-
-        for _ in 0..mutation_count {
-            let paths = self
-                .primary_multibuffer
-                .read(cx)
-                .paths()
-                .cloned()
-                .collect::<Vec<_>>();
-            let excerpt_ids = self.primary_multibuffer.read(cx).excerpt_ids();
-
-            if rng.random_bool(0.1) && !excerpt_ids.is_empty() {
-                let mut excerpts = HashSet::default();
-                for _ in 0..rng.random_range(0..excerpt_ids.len()) {
-                    excerpts.extend(excerpt_ids.choose(rng).copied());
-                }
-
-                let line_count = rng.random_range(0..5);
-
-                log::info!("Expanding excerpts {excerpts:?} by {line_count} lines");
-
-                self.expand_excerpts(
-                    excerpts.iter().cloned(),
-                    line_count,
-                    ExpandExcerptDirection::UpAndDown,
-                    cx,
-                );
-                continue;
-            }
-
-            if excerpt_ids.is_empty() || (rng.random() && excerpt_ids.len() < max_excerpts) {
-                let len = rng.random_range(100..500);
-                let text = RandomCharIter::new(&mut *rng).take(len).collect::<String>();
-                let buffer = cx.new(|cx| Buffer::local(text, cx));
-                log::info!(
-                    "Creating new buffer {} with text: {:?}",
-                    buffer.read(cx).remote_id(),
-                    buffer.read(cx).text()
-                );
-                let buffer_snapshot = buffer.read(cx).snapshot();
-                let diff = cx.new(|cx| BufferDiff::new_unchanged(&buffer_snapshot, cx));
-                // Create some initial diff hunks.
-                buffer.update(cx, |buffer, cx| {
-                    buffer.randomly_edit(rng, 1, cx);
-                });
-                let buffer_snapshot = buffer.read(cx).text_snapshot();
-                let ranges = diff.update(cx, |diff, cx| {
-                    diff.recalculate_diff_sync(&buffer_snapshot, cx);
-                    diff.snapshot(cx)
-                        .hunks(&buffer_snapshot)
-                        .map(|hunk| hunk.buffer_range.to_point(&buffer_snapshot))
-                        .collect::<Vec<_>>()
-                });
-                let path = PathKey::for_buffer(&buffer, cx);
-                self.set_excerpts_for_path(path, buffer, ranges, 2, diff, cx);
-            } else {
-                let remove_count = rng.random_range(1..=paths.len());
-                let paths_to_remove = paths
-                    .choose_multiple(rng, remove_count)
-                    .cloned()
-                    .collect::<Vec<_>>();
-                for path in paths_to_remove {
-                    self.remove_excerpts_for_path(path.clone(), cx);
-                }
-            }
-        }
-    }
 }
 
 impl EventEmitter<EditorEvent> for SplittableEditor {}
@@ -621,223 +265,3 @@ impl Render for SplittableEditor {
             .child(inner)
     }
 }
-
-impl SecondaryEditor {
-    fn sync_path_excerpts(
-        &mut self,
-        path_key: PathKey,
-        primary_multibuffer: &mut MultiBuffer,
-        diff: Entity<BufferDiff>,
-        cx: &mut App,
-    ) {
-        let Some(excerpt_id) = primary_multibuffer.excerpts_for_path(&path_key).next() else {
-            self.remove_mappings_for_path(&path_key, cx);
-            self.multibuffer.update(cx, |multibuffer, cx| {
-                multibuffer.remove_excerpts_for_path(path_key, cx);
-            });
-            return;
-        };
-
-        let primary_excerpt_ids: Vec<ExcerptId> =
-            primary_multibuffer.excerpts_for_path(&path_key).collect();
-
-        let primary_multibuffer_snapshot = primary_multibuffer.snapshot(cx);
-        let main_buffer = primary_multibuffer_snapshot
-            .buffer_for_excerpt(excerpt_id)
-            .unwrap();
-        let base_text_buffer = diff.read(cx).base_text_buffer();
-        let diff_snapshot = diff.read(cx).snapshot(cx);
-        let base_text_buffer_snapshot = base_text_buffer.read(cx).snapshot();
-        let new = primary_multibuffer
-            .excerpts_for_buffer(main_buffer.remote_id(), cx)
-            .into_iter()
-            .map(|(_, excerpt_range)| {
-                let point_range_to_base_text_point_range = |range: Range<Point>| {
-                    let start_row = diff_snapshot.row_to_base_text_row(
-                        range.start.row,
-                        Bias::Left,
-                        main_buffer,
-                    );
-                    let end_row =
-                        diff_snapshot.row_to_base_text_row(range.end.row, Bias::Right, main_buffer);
-                    let end_column = diff_snapshot.base_text().line_len(end_row);
-                    Point::new(start_row, 0)..Point::new(end_row, end_column)
-                };
-                let primary = excerpt_range.primary.to_point(main_buffer);
-                let context = excerpt_range.context.to_point(main_buffer);
-                ExcerptRange {
-                    primary: point_range_to_base_text_point_range(primary),
-                    context: point_range_to_base_text_point_range(context),
-                }
-            })
-            .collect();
-
-        let main_buffer = primary_multibuffer.buffer(main_buffer.remote_id()).unwrap();
-
-        self.remove_mappings_for_path(&path_key, cx);
-
-        self.editor.update(cx, |editor, cx| {
-            editor.buffer().update(cx, |buffer, cx| {
-                buffer.update_path_excerpts(
-                    path_key.clone(),
-                    base_text_buffer,
-                    &base_text_buffer_snapshot,
-                    new,
-                    cx,
-                );
-                buffer.add_inverted_diff(diff, main_buffer, cx);
-            })
-        });
-
-        let secondary_excerpt_ids: Vec<ExcerptId> = self
-            .multibuffer
-            .read(cx)
-            .excerpts_for_path(&path_key)
-            .collect();
-
-        for (primary_id, secondary_id) in primary_excerpt_ids.into_iter().zip(secondary_excerpt_ids)
-        {
-            self.primary_to_secondary.insert(primary_id, secondary_id);
-            self.secondary_to_primary.insert(secondary_id, primary_id);
-        }
-    }
-
-    fn remove_mappings_for_path(&mut self, path_key: &PathKey, cx: &App) {
-        let secondary_excerpt_ids: Vec<ExcerptId> = self
-            .multibuffer
-            .read(cx)
-            .excerpts_for_path(path_key)
-            .collect();
-
-        for secondary_id in secondary_excerpt_ids {
-            if let Some(primary_id) = self.secondary_to_primary.remove(&secondary_id) {
-                self.primary_to_secondary.remove(&primary_id);
-            }
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use fs::FakeFs;
-    use gpui::AppContext as _;
-    use language::Capability;
-    use multi_buffer::{MultiBuffer, PathKey};
-    use project::Project;
-    use rand::rngs::StdRng;
-    use settings::SettingsStore;
-    use ui::VisualContext as _;
-    use workspace::Workspace;
-
-    use crate::SplittableEditor;
-
-    fn init_test(cx: &mut gpui::TestAppContext) {
-        cx.update(|cx| {
-            let store = SettingsStore::test(cx);
-            cx.set_global(store);
-            theme::init(theme::LoadThemes::JustBase, cx);
-            crate::init(cx);
-        });
-    }
-
-    #[gpui::test(iterations = 100)]
-    async fn test_random_split_editor(mut rng: StdRng, cx: &mut gpui::TestAppContext) {
-        use rand::prelude::*;
-
-        init_test(cx);
-        let project = Project::test(FakeFs::new(cx.executor()), [], cx).await;
-        let (workspace, cx) =
-            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
-        let primary_multibuffer = cx.new(|cx| {
-            let mut multibuffer = MultiBuffer::new(Capability::ReadWrite);
-            multibuffer.set_all_diff_hunks_expanded(cx);
-            multibuffer
-        });
-        let editor = cx.new_window_entity(|window, cx| {
-            let mut editor =
-                SplittableEditor::new_unsplit(primary_multibuffer, project, workspace, window, cx);
-            editor.split(&Default::default(), window, cx);
-            editor
-        });
-
-        let operations = std::env::var("OPERATIONS")
-            .map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
-            .unwrap_or(20);
-        let rng = &mut rng;
-        for _ in 0..operations {
-            editor.update(cx, |editor, cx| {
-                let buffers = editor
-                    .primary_editor
-                    .read(cx)
-                    .buffer()
-                    .read(cx)
-                    .all_buffers();
-
-                if buffers.is_empty() {
-                    editor.randomly_edit_excerpts(rng, 2, cx);
-                    editor.check_invariants(true, cx);
-                    return;
-                }
-
-                let quiesced = match rng.random_range(0..100) {
-                    0..=69 if !buffers.is_empty() => {
-                        let buffer = buffers.iter().choose(rng).unwrap();
-                        buffer.update(cx, |buffer, cx| {
-                            if rng.random() {
-                                log::info!("randomly editing single buffer");
-                                buffer.randomly_edit(rng, 5, cx);
-                            } else {
-                                log::info!("randomly undoing/redoing in single buffer");
-                                buffer.randomly_undo_redo(rng, cx);
-                            }
-                        });
-                        false
-                    }
-                    70..=79 => {
-                        log::info!("mutating excerpts");
-                        editor.randomly_edit_excerpts(rng, 2, cx);
-                        false
-                    }
-                    80..=89 if !buffers.is_empty() => {
-                        log::info!("recalculating buffer diff");
-                        let buffer = buffers.iter().choose(rng).unwrap();
-                        let diff = editor
-                            .primary_multibuffer
-                            .read(cx)
-                            .diff_for(buffer.read(cx).remote_id())
-                            .unwrap();
-                        let buffer_snapshot = buffer.read(cx).text_snapshot();
-                        diff.update(cx, |diff, cx| {
-                            diff.recalculate_diff_sync(&buffer_snapshot, cx);
-                        });
-                        false
-                    }
-                    _ => {
-                        log::info!("quiescing");
-                        for buffer in buffers {
-                            let buffer_snapshot = buffer.read(cx).text_snapshot();
-                            let diff = editor
-                                .primary_multibuffer
-                                .read(cx)
-                                .diff_for(buffer.read(cx).remote_id())
-                                .unwrap();
-                            diff.update(cx, |diff, cx| {
-                                diff.recalculate_diff_sync(&buffer_snapshot, cx);
-                            });
-                            let diff_snapshot = diff.read(cx).snapshot(cx);
-                            let ranges = diff_snapshot
-                                .hunks(&buffer_snapshot)
-                                .map(|hunk| hunk.range)
-                                .collect::<Vec<_>>();
-                            let path = PathKey::for_buffer(&buffer, cx);
-                            editor.set_excerpts_for_path(path, buffer, ranges, 2, diff, cx);
-                        }
-                        true
-                    }
-                };
-
-                editor.check_invariants(quiesced, cx);
-            });
-        }
-    }
-}

crates/eval/src/example.rs

@@ -365,12 +365,11 @@ impl ExampleContext {
                         let snapshot = buffer.read(cx).snapshot();
 
                         let file = snapshot.file().unwrap();
-                        let base_text = diff.read(cx).base_text(cx).text();
+                        let diff = diff.read(cx);
+                        let base_text = diff.base_text().text();
 
                         let hunks = diff
-                            .read(cx)
-                            .snapshot(cx)
-                            .hunks(&snapshot)
+                            .hunks(&snapshot, cx)
                             .map(|hunk| FileEditHunk {
                                 base_text: base_text[hunk.diff_base_byte_range.clone()].to_string(),
                                 text: snapshot

crates/feature_flags/src/flags.rs

@@ -23,9 +23,3 @@ pub struct AgentV2FeatureFlag;
 impl FeatureFlag for AgentV2FeatureFlag {
     const NAME: &'static str = "agent-v2";
 }
-
-pub struct AcpBetaFeatureFlag;
-
-impl FeatureFlag for AcpBetaFeatureFlag {
-    const NAME: &'static str = "acp-beta";
-}

crates/file_finder/src/file_finder.rs

@@ -1760,19 +1760,16 @@ impl PickerDelegate for FileFinderDelegate {
                                                 menu.context(focus_handle)
                                                     .action(
                                                         "Split Left",
-                                                        pane::SplitLeft::default().boxed_clone(),
+                                                        pane::SplitLeft.boxed_clone(),
                                                     )
                                                     .action(
                                                         "Split Right",
-                                                        pane::SplitRight::default().boxed_clone(),
-                                                    )
-                                                    .action(
-                                                        "Split Up",
-                                                        pane::SplitUp::default().boxed_clone(),
+                                                        pane::SplitRight.boxed_clone(),
                                                     )
+                                                    .action("Split Up", pane::SplitUp.boxed_clone())
                                                     .action(
                                                         "Split Down",
-                                                        pane::SplitDown::default().boxed_clone(),
+                                                        pane::SplitDown.boxed_clone(),
                                                     )
                                             }
                                         }))

crates/fs/src/fake_git_repo.rs

@@ -156,16 +156,8 @@ impl GitRepository for FakeGitRepository {
         })
     }
 
-    fn remote_url(&self, name: &str) -> BoxFuture<'_, Option<String>> {
-        let name = name.to_string();
-        let fut = self.with_state_async(false, move |state| {
-            state
-                .remotes
-                .get(&name)
-                .context("remote not found")
-                .cloned()
-        });
-        async move { fut.await.ok() }.boxed()
+    fn remote_url(&self, _name: &str) -> BoxFuture<'_, Option<String>> {
+        async move { None }.boxed()
     }
 
     fn diff_tree(&self, _request: DiffTreeType) -> BoxFuture<'_, Result<TreeDiff>> {

crates/fs/src/fs.rs

@@ -335,11 +335,12 @@ impl FileHandle for std::fs::File {
         let mut path_buf = MaybeUninit::<[u8; libc::PATH_MAX as usize]>::uninit();
 
         let result = unsafe { libc::fcntl(fd.as_raw_fd(), libc::F_GETPATH, path_buf.as_mut_ptr()) };
-        anyhow::ensure!(result != -1, "fcntl returned -1");
+        if result == -1 {
+            anyhow::bail!("fcntl returned -1".to_string());
+        }
 
         // SAFETY: `fcntl` will initialize the path buffer.
         let c_str = unsafe { CStr::from_ptr(path_buf.as_ptr().cast()) };
-        anyhow::ensure!(!c_str.is_empty(), "Could find a path for the file handle");
         let path = PathBuf::from(OsStr::from_bytes(c_str.to_bytes()));
         Ok(path)
     }
@@ -371,11 +372,12 @@ impl FileHandle for std::fs::File {
         kif.kf_structsize = libc::KINFO_FILE_SIZE;
 
         let result = unsafe { libc::fcntl(fd.as_raw_fd(), libc::F_KINFO, kif.as_mut_ptr()) };
-        anyhow::ensure!(result != -1, "fcntl returned -1");
+        if result == -1 {
+            anyhow::bail!("fcntl returned -1".to_string());
+        }
 
         // SAFETY: `fcntl` will initialize the kif.
         let c_str = unsafe { CStr::from_ptr(kif.assume_init().kf_path.as_ptr()) };
-        anyhow::ensure!(!c_str.is_empty(), "Could find a path for the file handle");
         let path = PathBuf::from(OsStr::from_bytes(c_str.to_bytes()));
         Ok(path)
     }
@@ -396,21 +398,18 @@ impl FileHandle for std::fs::File {
         // Query required buffer size (in wide chars)
         let required_len =
             unsafe { GetFinalPathNameByHandleW(handle, &mut [], FILE_NAME_NORMALIZED) };
-        anyhow::ensure!(
-            required_len != 0,
-            "GetFinalPathNameByHandleW returned 0 length"
-        );
+        if required_len == 0 {
+            anyhow::bail!("GetFinalPathNameByHandleW returned 0 length");
+        }
 
         // Allocate buffer and retrieve the path
         let mut buf: Vec<u16> = vec![0u16; required_len as usize + 1];
         let written = unsafe { GetFinalPathNameByHandleW(handle, &mut buf, FILE_NAME_NORMALIZED) };
-        anyhow::ensure!(
-            written != 0,
-            "GetFinalPathNameByHandleW failed to write path"
-        );
+        if written == 0 {
+            anyhow::bail!("GetFinalPathNameByHandleW failed to write path");
+        }
 
         let os_str: OsString = OsString::from_wide(&buf[..written as usize]);
-        anyhow::ensure!(!os_str.is_empty(), "Could find a path for the file handle");
         Ok(PathBuf::from(os_str))
     }
 }
@@ -1858,18 +1857,6 @@ impl FakeFs {
         .unwrap();
     }
 
-    pub fn set_remote_for_repo(
-        &self,
-        dot_git: &Path,
-        name: impl Into<String>,
-        url: impl Into<String>,
-    ) {
-        self.with_git_state(dot_git, true, |state| {
-            state.remotes.insert(name.into(), url.into());
-        })
-        .unwrap();
-    }
-
     pub fn insert_branches(&self, dot_git: &Path, branches: &[&str]) {
         self.with_git_state(dot_git, true, |state| {
             if let Some(first) = branches.first()

crates/fsevent/src/fsevent.rs

@@ -76,7 +76,7 @@ impl EventStream {
                     cf::CFRelease(cf_path);
                     cf::CFRelease(cf_url);
                 } else {
-                    log::error!("Failed to create CFURL for path: {path:?}");
+                    log::error!("Failed to create CFURL for path: {}", path.display());
                 }
             }
 

crates/git_ui/src/blame_ui.rs

@@ -13,7 +13,7 @@ use project::{git_store::Repository, project_settings::ProjectSettings};
 use settings::Settings as _;
 use theme::ThemeSettings;
 use time::OffsetDateTime;
-use ui::{ContextMenu, CopyButton, Divider, prelude::*, tooltip_container};
+use ui::{ContextMenu, Divider, prelude::*, tooltip_container};
 use workspace::Workspace;
 
 const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
@@ -335,10 +335,18 @@ impl BlameRenderer for GitBlameRenderer {
                                                     cx.stop_propagation();
                                                 }),
                                             )
-                                            .child(Divider::vertical())
                                             .child(
-                                                CopyButton::new(sha.to_string())
-                                                    .tooltip_label("Copy SHA"),
+                                                IconButton::new("copy-sha-button", IconName::Copy)
+                                                    .icon_size(IconSize::Small)
+                                                    .icon_color(Color::Muted)
+                                                    .on_click(move |_, _, cx| {
+                                                        cx.stop_propagation();
+                                                        cx.write_to_clipboard(
+                                                            ClipboardItem::new_string(
+                                                                sha.to_string(),
+                                                            ),
+                                                        )
+                                                    }),
                                             ),
                                     ),
                             ),

crates/git_ui/src/commit_tooltip.rs

@@ -5,7 +5,7 @@ use git::blame::BlameEntry;
 use git::repository::CommitSummary;
 use git::{GitRemote, commit::ParsedCommitMessage};
 use gpui::{
-    App, Asset, Element, Entity, MouseButton, ParentElement, Render, ScrollHandle,
+    App, Asset, ClipboardItem, Element, Entity, MouseButton, ParentElement, Render, ScrollHandle,
     StatefulInteractiveElement, WeakEntity, prelude::*,
 };
 use markdown::{Markdown, MarkdownElement};
@@ -14,7 +14,7 @@ use settings::Settings;
 use std::hash::Hash;
 use theme::ThemeSettings;
 use time::{OffsetDateTime, UtcOffset};
-use ui::{Avatar, CopyButton, Divider, prelude::*, tooltip_container};
+use ui::{Avatar, Divider, IconButtonShape, prelude::*, tooltip_container};
 use workspace::Workspace;
 
 #[derive(Clone, Debug)]
@@ -315,8 +315,8 @@ impl Render for CommitTooltip {
                                                     cx.open_url(pr.url.as_str())
                                                 }),
                                             )
-                                            .child(Divider::vertical())
                                         })
+                                        .child(Divider::vertical())
                                         .child(
                                             Button::new(
                                                 "commit-sha-button",
@@ -342,8 +342,18 @@ impl Render for CommitTooltip {
                                                 },
                                             ),
                                         )
-                                        .child(Divider::vertical())
-                                        .child(CopyButton::new(full_sha).tooltip_label("Copy SHA")),
+                                        .child(
+                                            IconButton::new("copy-sha-button", IconName::Copy)
+                                                .shape(IconButtonShape::Square)
+                                                .icon_size(IconSize::Small)
+                                                .icon_color(Color::Muted)
+                                                .on_click(move |_, _, cx| {
+                                                    cx.stop_propagation();
+                                                    cx.write_to_clipboard(
+                                                        ClipboardItem::new_string(full_sha.clone()),
+                                                    )
+                                                }),
+                                        ),
                                 ),
                         ),
                 )