Review

What Review does

Review turns every pull request into a structural review. It computes a graph diff between the base and head branches, calculates blast radius, detects API breakage, and posts a GitHub comment with cited evidence. Reviews are deterministic — same diff, same comment.

Graph diff on PRs

When a PR opens or updates, Review builds the Software Graph for both the base and head branches, then computes an O(n+m) structural diff. The comment shows added, removed, and modified nodes — not just file-level changes but architectural-level impact.

Blast radius

For every changed node, Review computes the transitive blast radius — all downstream dependents that could be affected. The delta between base and head blast radii shows whether the PR increases or decreases risk.

Compare

Compare is the time-travel feature within Review. Compare any two points in your repository's history — branches, tags, commits, or releases — and see the structural diff between them. Useful for release audits and migration tracking.

What appears in the PR comment

The GitHub App posts a structured comment with evidence. Each finding links back to specific graph nodes and relationships.

• Readiness delta vs the base branch
• Added, removed, and modified nodes with context
• Blast radius delta (modules affected)
• API breakage detection (removed or changed endpoints)
• Policy outcomes (block, warn, pass)
• Cited evidence for every finding