Scan package tests, update @.claude/skills/testing/testing.mdc with new patterns. Follow writing-skills: DRY, ultra-concise, token-efficient.

Process:

• Glob packages/[PACKAGE]/**/*.spec.{ts,tsx}

• Read 6-8 diverse tests: plugins, transforms, components, hooks, utils

• Identify patterns NOT in testing.mdc:

• Imports (ONLY mock /spyOn from bun:test - describe/it/expect are global)

• Test organization, mocking, assertions, RTL, edge cases

• Update testing.mdc: Add to existing sections (DRY), one example per pattern, Quick Reference if frequent

• Report: Found X patterns → Updated Y sections

Critical:

• Only actual codebase patterns. No theoretical examples. No duplication.

• Test globals (describe , it , expect , etc.) are global via tooling/config/global.d.ts

• NO imports needed

• ONLY import mock and spyOn when used

Package: Specify path (e.g., packages/media )