Delimit Demo

Live demonstration of Delimit catching breaking API changes on a real pull request.

What This Demonstrates

A Users API (openapi.yaml) gets a v2 migration PR that introduces 6 breaking changes:

Breaking Change	Severity
Required tenant_id header added to GET /users	High
DELETE /users/{userId} removed	Critical
userId type changed from string to integer	Warning
User.id type changed from string to integer	Warning
Required tenant_id field added to User schema	High
editor removed from role enum	Warning

Plus 1 safe additive change: new GET /v2/users endpoint.

See It In Action

View the PR with Delimit's comment →

The PR comment includes:

• Breaking changes table with severity badges
• Semver classification (MAJOR: 1.0.0 → 2.0.0)
• 6-step migration guide
• New additions list

Try It Yourself

Add Delimit to any repo with an OpenAPI spec:

- uses: delimit-ai/delimit-action@v1
  with:
    spec: path/to/openapi.yaml

• GitHub Action
• MCP Toolkit — npx delimit-cli setup
• Documentation