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Add GitHub Actions workflow for Antigravity AI code review #9284

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Add GitHub Actions workflow for Antigravity AI code review
dschuff Oct 20, 2026
98a955a
Address review feedback: restrict /review to maintainers, fix checkou…
dschuff Oct 20, 2026
32f5ef6
Pin action SHA, switch to PR head ref, and restrict permissions
dschuff Oct 20, 2026
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51 changes: 51 additions & 0 deletions .github/workflows/ai-review.yml
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name: 'Google Antigravity Code Review'

on:
pull_request:
types: [opened, synchronize, reopened]
issue_comment:
types: [created]

permissions:
contents: read
pull-requests: write

concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.event.issue.number || github.ref }}
cancel-in-progress: true

jobs:
review:
name: 'Antigravity AI Code Review'
# 1. Run automatically for internal PRs where secrets exist
# 2. For external fork PRs, run when an authorized member comments '/review'
if: |
(github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository) ||
(github.event_name == 'issue_comment' &&
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github.event.issue.pull_request &&
contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'), github.event.comment.author_association) &&
contains(github.event.comment.body, '/review'))
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v4
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with:
ref: ${{ github.event_name == 'issue_comment' && format('refs/pull/{0}/head', github.event.issue.number) || github.event.pull_request.head.sha }}

- name: Run Antigravity Review Agent
uses: anguillanneuf/run-antigravity-cli@126f1bc7865cbcf3784cf764c96d3eb7f4d0b5d9 # master
with:
api-key: ${{ secrets.GEMINI_API_KEY }}
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github-token: ${{ secrets.GITHUB_TOKEN }}
model: 'gemini-flash-latest'
fail-on-error: true
min-severity: 'MEDIUM'
min-confidence: '3'
custom-prompt: |
You are reviewing a Pull Request for Binaryen, a WebAssembly compiler and toolchain infrastructure library written in C++.
Focus on:
1. WebAssembly specification compliance, validation rules, and proper typing.
2. Soundness of compiler optimization passes, AST/IR transformations, and Module invariants.
3. Memory safety, bounds checks, null pointer dereferences, integer overflow, and clean error handling.
4. Performance traps and edge cases in parser, binary reader/writer, and interpreter.
5. Adherence to Binaryen C++ conventions while avoiding superficial style nitpicks.
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