name: rule-pull-request description: 'PR creation workflow, title format, description template, and quality gates'

Rule pull-request

Apply this rule whenever work touches:

• *

Pull request guidelines for the schemas repo

Pull requests are the primary review mechanism for changes to a published npm package. Every PR must be focused, well-described, and pass all quality gates.

PR title format

PR titles are human-readable summaries — NOT conventional commit messages. The title should describe what the PR accomplishes at a high level.

GOOD titles:
  "Add MassID IPFS and JSON schema definitions"
  "Implement shared coordinate validation schema"
  "Fix UUID validation edge case for nil values"
  "Upgrade Zod to v4 with strict object migration"

BAD titles (conventional commit format):
  "feat(schema): add mass-id ipfs schema"
  "fix(shared): resolve uuid validation"
  "chore: upgrade zod"

Keep titles under 70 characters when possible. Use the description for details.

PR size limits

Aim for focused, reviewable PRs:

• Lines changed: <= 400 (additions + deletions)
• Files changed: <= 20

When a change exceeds these limits, split it into logical increments:

1. Foundation first — shared schemas, utilities, types
2. Feature schemas — the main schema definitions
3. Tests and fixtures — test coverage for the new schemas
4. Generated output — JSON schema generation and validation

If a PR must exceed limits (e.g., initial schema creation), add a comment explaining why splitting is not practical.

Quality gates

Run pnpm check before creating a PR. This executes the full quality gate pipeline:

pnpm check

This includes:

• TypeScript type checking (tsc --noEmit)
• Linting (ESLint + Prettier)
• Tests with 100% coverage (Vitest)
• Schema generation and validation
• Spell checking (cspell)

All gates must pass. Do not create a PR with failing checks.

PR description template

Every PR must include a meaningful description following this structure:

## Summary

Brief description of what this PR accomplishes and why.

- Key change 1
- Key change 2
- Key change 3

## Changes

### Added

- New schemas, files, or capabilities

### Changed

- Modifications to existing schemas or behavior

### Removed

- Anything removed (with justification)

## Test plan

- [ ] Unit tests cover all new schemas
- [ ] 100% coverage maintained
- [ ] Both valid and invalid inputs tested
- [ ] Generated JSON schemas validated
- [ ] `pnpm check` passes

## Related issues

Closes #123
Related to #456

Review approach — active criticism

Reviewers should challenge every PR on three dimensions:

1. Scope — Does this PR do exactly what it claims? Are there scope creep changes mixed in?
2. Clarity — Can a developer unfamiliar with this area understand the changes? Are schema names, field names, and meta descriptions clear?
3. Quality — Are edge cases covered? Are .meta() descriptions accurate? Do examples represent realistic data?

Linking issues

Always link related issues in the PR description:

• Closes #123 — automatically closes the issue on merge
• Related to #456 — creates a reference without auto-closing
• Blocked by #789 — indicates a dependency

Draft PRs

Use draft PRs for:

• Work in progress that needs early feedback
• Changes that depend on other PRs
• Exploratory changes that may not be merged

Convert to ready-for-review only when all quality gates pass.

Post-merge

After merging:

• Verify CI passes on the main branch
• If the change affects published schemas, coordinate the npm release
• Update downstream consumers if the change is breaking