# Typescript Write

> Write TypeScript and JavaScript code following Metabase coding standards and best practices. Use when developing or refactoring TypeScript/JavaScript code.

- Skill: `comeonoliver/typescript-write` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add comeonoliver/typescript-write`
- Raw SKILL.md: https://api.skillmd.com/api/skills/comeonoliver/typescript-write/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ComeOnOliver (https://skillmd.com/u/comeonoliver)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/comeonoliver/typescript-write

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# TypeScript/JavaScript Development Skill
# Autonomous Development Workflow

- Do not attempt to read or edit files outside the project folder
- Add failing tests first, then fix them
- Work autonomously in small, testable increments
- Run targeted tests, and lint continuously during development
- Prioritize understanding existing patterns before implementing
- Don't commit changes, leave it for the user to review and make commits
## Linting and Formatting

- **Lint:** `yarn lint-eslint-pure`
  - Run ESLint on the codebase
- **Format:** `yarn prettier`
  - Format code using Prettier
- **Type Check:** `yarn type-check-pure`
  - Run TypeScript type checking

## Testing

### JavaScript/TypeScript Tests

- **Test a specific file:** `yarn test-unit-keep-cljs path/to/file.unit.spec.js`
- **Test by pattern:** `yarn test-unit-keep-cljs -t "pattern"`
  - Runs tests matching the given pattern

### ClojureScript Tests

- **Test ClojureScript:** `yarn test-cljs`
  - Run ClojureScript tests