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

> Source: <https://github.com/Blast-radar/blastradar-action>
> Published: 2026-07-22 04:11:38+00:00

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.