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RecipeHowToUpdated July 2026· 15 min to deploy

AI code review on every GitHub PR

When a PR opens, fetch the diff. AI reviews for bugs, security issues, and clarity. Posts findings as PR comments. Humans still own merge decisions.

GitHub
Anthropic

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The blueprint
Trigger
PR opened
GitHub PR Opened.
Transform
Fetch diff
GitHub Get PR Diff.
Transform
AI review
Claude: 'Review this diff for bugs, security, performance, clarity. Return JSON: findings[] with severity, line, comment.'
Action
Post comments
GitHub Submit PR Review as COMMENT (never APPROVE) with findings.
Steps

Build this in 15 min.

Each step is a single node on the canvas. Order matters; everything else is dragging.

  1. 1
    Trigger
    PR opened

    GitHub PR Opened.

  2. 2
    Transform
    Fetch diff

    GitHub Get PR Diff.

  3. 3
    Transform
    AI review

    Claude: 'Review this diff for bugs, security, performance, clarity. Return JSON: findings[] with severity, line, comment.'

  4. 4
    Action
    Post comments

    GitHub Submit PR Review as COMMENT (never APPROVE) with findings.

FAQ

Common questions about this recipe.

Why not auto-approve?
AI reviews are guidance, not gating. Humans own merge decisions for accountability. Auto-approving creates a single point of failure.

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