Ask Sourcebot list commits tool

[brendan-kellam]

Add listCommits tool to Ask Sourcebot to enable querying commit history for repositories.

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Linear Issue: SOU-338

 

Summary by CodeRabbit

• New Features

  • Added a commits-listing tool to the chat experience, showing repository commits with shortened hash, refs, message, author, and formatted date in an expandable UI within chat details.

• Documentation

  • Recorded the new listCommits tool in the changelog under Unreleased.

[cursor]

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Caution

Review failed

The pull request is closed.

Walkthrough

Adds a new chat tool "listCommits": backend tool implementation, type bindings, agent registration, UI visibility, and a new React component to render commit lists (loading/error/success) in the chat details view.

Changes

Cohort / File(s)	Summary
Tool Implementation & Types packages/web/src/features/chat/tools.ts, packages/web/src/features/chat/types.ts	Added listCommitsTool implementation and exported types (input/output/UI part). Wired ListCommitsTool into chat tool type map. Calls listCommits API and maps commits to standardized output.
Agent Registration & Constants packages/web/src/features/chat/agent.ts, packages/web/src/features/chat/constants.ts	Registered toolNames.listCommits in agent tool mapping and added tool-listCommits to uiVisiblePartTypes.
UI: Details View & Tool Component packages/web/src/features/chat/components/chatThread/detailsCard.tsx, packages/web/src/features/chat/components/chatThread/tools/listCommitsToolComponent.tsx	Added ListCommitsToolComponent (collapsible commits list with loading/error/success states) and integrated it into detailsCard rendering for tool-listCommits parts.
Changelog CHANGELOG.md	Documented addition of listCommits tool under Unreleased Added section.

Sequence Diagram

sequenceDiagram
    participant Agent as Chat Agent
    participant AgentReg as Agent Registry
    participant Tool as listCommitsTool
    participant GitAPI as Git API
    participant UI as ListCommitsToolComponent

    Agent->>AgentReg: request execute tool listCommits (params)
    AgentReg->>Tool: invoke listCommitsTool with params
    Tool->>GitAPI: call listCommits(query, since, until, author, maxCount)
    GitAPI-->>Tool: return commit list or error
    alt success
        Tool->>Tool: map commits -> {hash, message, author, refs, date, totalCount}
        Tool-->>AgentReg: return formatted output
    else error
        Tool-->>AgentReg: return service error
    end
    AgentReg-->>UI: deliver tool UI part (tool-listCommits)
    UI->>UI: determine state (loading / error / success)
    UI-->>UI: render collapsible commits list or error/no-results message

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• chore(ask_sb): Bump AI SDK dependencies #404 — touches createAgentStream and tool result handling; relates to agent/tool integration changes.
• feat(ask_sb): Improved search tool ; tools for listing / searching repos ; removed search scope constraint #400 — adds chat tools and updates chat plumbing similar to this PR (tool registration and UI rendering).

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Ask Sourcebot list commits tool' clearly and specifically summarizes the main change: adding a list commits tool to Ask Sourcebot.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch cursor/SOU-338-ask-sourcebot-list-commits-tool-d137

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