Devtools
OpenAPI Breaking Change Detector
Detect breaking API changes in pull requests before clients break
Intermediate14h1–2
OpenAPINode.jsGitHub Actions
17/20Database Migration Safety Checker
Flag migrations that will lock tables or lose data before they run.
Intermediate14h1–2 people17/20 fit
Build Database Migration Safety Checker for backend teams in ~14h with 1–2 people. Stack: Node.js + Postgres + GitHub Actions.
Why it wins: Prevents outages with simple rules.
Build flow
01 · Problem
Migrations take production down with long locks.
02 · Solution
Parse migration SQL, detect risky operations like full rewrites, missing defaults and dropped columns and suggest safer steps.
03 · Build
- 1Parse SQL
- 2Encode rules
- 3Comment on PRs
- 4Suggest fixes
04 · Demo
Add a column with a default and see the lock warning.
MVP checklist
- SQL parsing
- Risk rules
- Safer alternatives
- PR check
Tech stack
| Tech | Role | |
|---|---|---|
| Node.js | Backend runtime | Backend |
| Postgres | Relational database | Data |
| GitHub Actions | Repo + PR data | API |
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