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Show HN: BlastRadar GitHub Action, automatic production risk scoring on every PR

BlastRadar released a GitHub Action that automatically scores every pull request for production risk on a scale of 1-10 and blocks merges if the score exceeds a configurable threshold (default 7). The action uses an Anthropic API key to analyze diffs and can also be tested via a web interface at blastradar.vercel.app.

read1 min views1 publishedJul 22, 2026
Show HN: BlastRadar GitHub Action, automatic production risk scoring on every PR
Image: source

Automatic production risk scoring for every pull request. Scores your diff 1-10 and blocks merges if risk is too high.

Add this to .github/workflows/blastradar.yml

in your repo:

name: BlastRadar Risk Check
on: [pull_request]

jobs:
  risk-check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2
      - uses: Blast-radar/blastradar-action@v1
        with:
          anthropic-api-key: ${{ secrets.ANTHROPIC_API_KEY }}
          threshold: '7'

Then add your Anthropic API key as a repository secret named ANTHROPIC_API_KEY

.

That's it. Every PR now gets automatically scored for production risk.

Input Required Default Description
anthropic-api-key Yes Your Anthropic API key
threshold No 7 Risk score that fails the check
Output Description
risk-score The risk score (1-10)
verdict One-line summary of the risk

blastradar.vercel.app — paste any diff, get a risk score in 10 seconds.

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