Validate Code Changes

Run yarn check after completing tasks that modify code files.

When to Run

Run yarn check if you modified any of these file types:

• .ts, .tsx, .js, .jsx - TypeScript/JavaScript source files
• package.json - dependency changes
• tsconfig.json - TypeScript config
• .eslintrc.*, eslint.config.* - ESLint config

When to Skip

Skip yarn check if you ONLY did one of these:

• Edited .md, .mdx files (documentation)
• Edited .mdc files (Cursor rules)
• Called MCP tools without modifying code
• Read files or explored the codebase
• Made git commits/pushes
• Edited JSON files unrelated to TypeScript (e.g., Linear configs)
• Edited images or other assets

Workflow

1. Run yarn check
2. Fix all reported issues (TypeScript, ESLint, or unused code from Knip)
3. Rerun yarn check until it passes with no errors

Crucial: Always delete unused exports or files reported by Knip.

Quick Decision

Ask yourself: "Did I modify any .ts, .tsx, .js, or .jsx file?"

• Yes -> Run yarn check
• No -> Skip it