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Jest setup

Skill alexngai/skill-tree/docs/demo/skills/jest-setup

Version control and evolution for AI agent skills — versioned storage, dynamic serving/loadouts, multi-agent git sync, and cross-repo federation.

Install
npx -y skills add alexngai/skill-tree --skill jest-setup

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Configure Jest for a TypeScript project — ts-jest, module mapping, and coverage thresholds.

SKILL.md

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Jest Setup (TypeScript)

  1. Install jest, ts-jest, and @types/jest.
  2. jest.config.ts: set preset: 'ts-jest' and testEnvironment: 'node' (or jsdom for UI).
  3. Map path aliases with moduleNameMapper so @/x resolves like your bundler.
  4. Gate CI with coverageThreshold so coverage can't silently regress.

Keep looking

Skills are one crate of 328,083. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.