extract-errors
Use when adding new error messages to React, or seeing "unknown error code" warnings.
Use when you want to validate changes before committing, or when you need to check all React contribution requirements.
$ npx -y skills add facebook/react --skill verify --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
/verifyContext preview
The summary Claude sees to decide when to auto-load this skill.
Use when you want to validate changes before committing, or when you need to check all React contribution requirements.
name: verify description: Use when you want to validate changes before committing, or when you need to check all React contribution requirements.
Run all verification steps.
Arguments:
Run these first in sequence: 1. Run `yarn prettier` - format code (stop if fails) 2. Run `yarn linc` - lint changed files (stop if fails)
Then run these with subagents in parallel: 1. Use `/flow` to type check (stop if fails) 2. Use `/test` to test changes in source (stop if fails) 3. Use `/test www` to test changes in www (stop if fails)
If all pass, show success summary. On failure, stop immediately and report the issue with suggested fixes.
React is a JavaScript library for building user interfaces. Declarative: React makes it painless to create interactive UIs.
Repo: facebook/react
Use when adding new error messages to React, or seeing "unknown error code" warnings.
Use when feature flag tests fail, flags need updating, understanding @gate pragmas, debugging channel-specific test failures, or adding new flags to React.
Use when you have lint errors, formatting issues, or before committing code to ensure it passes CI.
Use when you need to check feature flag states, compare channels, or debug why a feature behaves differently across release channels.
Use when you need to run Flow type checking, or when seeing Flow type errors in React code.
Use when you need to run tests for React core. Supports source, www, stable, and experimental channels.