fix(search): add GitHub commit search and accept native-only live queries

[waleedlatif1]

Summary

• Add a GitHub commits search kind. The Assistant had no way to answer "what did I commit this week", so it tried the code and issues kinds with commit qualifiers, and those calls failed
  • /search/commits uses the same repository scoping as issues. Date bounds become one author-date: range, and date ordering sorts by author-date
  • read_document on a commit calls GET /repos/{repo}/commits/{sha}. It returns the message plus up to 30 changed files (GitHub's default page size), since each file carries its full patch. The sha is validated before any request
  • Commits verify at repository level, like issues. Commit search needs only the Contents read permission the App already requires
  • Commits are searched only when the kind is explicit, so default searches spend no extra search requests
• Accept a search_workspace call whose only search terms are in a native query (e.g. author:@me). The contract and the use case previously rejected it with "Supply search terms or a date bound"
• Regenerate the tool catalog and runtime schemas. The worker's copy of the assistant tool contract ships in the paired copilot PR

Type of Change

• Bug fix

Testing

• Unit tests: commit search query, sort and mapping; the author-date range; commit reads; invalid refs; native-only validation in the contract and the use case
• Ran the real searchGitHub/readGitHub against the live GitHub API:
  • The failing "commits this past week" call now returns only in-range commits
  • Oldest and newest sort, bounded ranges and pagination work
  • Short-sha reads work, and bad refs are rejected
  • Issue and default-kind searches behave as before
• Checked against GitHub's REST docs (search commits, get a commit, commit search qualifiers)
• bun run lint, check:audits, mship-tools:check, type-check and the lib/sim-search, lib/mothership and contract suites pass

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 24, 2026 7:14am UTC

[cubic-dev-ai]

No issues found across 11 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge based on the reviewed changes and resolved findings.

Summary

The PR adds explicit GitHub commit search and commit reads, permits native-query-only live searches, and updates the Assistant contracts, generated schemas, tests, and guidance.

• The change since the previous review fixes date-qualifier detection for quoted phrases.
• No new actionable issue was established. All previous Greptile threads are resolved.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A[Native-only search request] --> B[Validate search contract]
  B --> C[Live search]
  C --> D[GitHub commit query with author-date bounds]
  D --> E[Commit results]
  E --> F[Repository-scoped commit read]

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_{Reviews (3) · Last reviewed commit: "fix(search): detect native GitHub date q..."}

[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 13 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 13 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}