PR Impact Analysis

Stop merging blind. A GitHub Marketplace action that calculates the real structural impact of every pull request — not lines changed, not files touched, but actual blast radius.

GitHub ActionsTypeScriptMCPCI/CDOpen Source

🤖 About PR Impact Analysis

A GitHub Action that runs on every pull request and calculates the real structural impact of the proposed changes. Backed by Depwire's deterministic dependency graph.

🎯 The Problem With PR Reviews

🤷 Line Counts Lie: A 2-line change can cascade through 200 files
🧠 Gut Feel Reviews: Most teams guess at risk
🔥 Silent Breakage: Core utility changes slip through unnoticed

✨ What It Delivers

📊 Risk Grade: Every PR gets an A/B/C/D/F score
🎯 Affected Symbols: Exact list of functions, classes, modules impacted
🌐 Blast Radius Viz: Link to interactive arc diagram
💬 PR Comment: Results posted inline, no separate dashboard
🔗 CI-Native: Works with branch protection rules

🚀 Install in 2 Minutes

📝 Add to Workflow: Drop it in .github/workflows/
🔑 Set API Key: Add DEPWIRE_API_KEY to secrets
✅ Done: Every new PR gets scored automatically

🔍 Deterministic, Not Probabilistic

🔬 Same PR = Same Score: Fully reproducible
📋 Fully Auditable: Every score traces back to graph edges
🚫 No AI Hallucinations: Pure graph math, no guessing

🔗 Powered By Depwire

Built on the same dependency graph engine as Depwire CLI and Depwire Cloud.

👉 Install from GitHub Marketplace