repo-validation-selector

name: repo-validation-selector description: Select the smallest correct validation commands for this repo based on touched paths, while distinguishing lint, build/type, and runtime confidence.

Repo Validation Selector

Use this skill after code changes to choose minimal, sufficient verification.

Goal

Prevent both:

• under-validation (missing regressions)
• over-validation (wasting time on full-repo checks)

Core principle

Lint, build/type, and runtime/e2e are different signals. Report them separately.

Path-to-command decision rules

1) Chat extension-only changes

When changes are only under packages/extension-chat/*:

npx eslint <changed chat .js/.ts files>
npx prettier --check <changed chat .html/.css/.js/.ts files>
npm run build:extension:chat:main

Optional (if requested): extension Playwright subset.

2) Core extension-only changes

When changes are only under packages/extension/*:

npx eslint <changed core .js/.ts files>
npx prettier --check <changed core .html/.css/.js/.ts files>
npm run build:extension:main

3) Shared runtime changes

When touching packages/lwc/main/*, packages/lwc/extension/*, or packages/lwc/shared/*:

npx eslint <changed .js/.ts files>
npx prettier --check <changed .html/.css/.js/.ts files>
npm run build:extension:main
npm run build:extension:chat:main

Also run npm run build:shared if:

• manifest generation may be impacted
• shared module compilation paths changed
• application registry behavior changed

4) Application manifest/app scaffolding updates

When touching:

• packages/lwc/applications/*
• tools/scripts/generate_application_manifest.js

Run:

npm run build:shared
npm run build:extension:main

Include chat build too when shared lwc files changed.

5) E2E selection

Only run Playwright when requested or when runtime confidence is needed.

Baseline commands:

npm run test:e2e:ext

If known baseline failures exist, classify as baseline vs new regression and, when useful, run targeted specs.

Output contract (required)

Always report verification in this structure:

1. Lint/format
   • commands
   • pass/fail
2. Build/type
   • commands
   • pass/fail
3. Runtime/E2E confidence
   • commands
   • pass/fail
   • baseline issues vs new regressions

Anti-patterns

• Don’t claim “fully validated” from lint-only.
• Don’t default to npm run validate unless explicitly requested.
• Don’t run full e2e by default for narrow, local UI tweaks.