Guide for performing secure web searches with privacy protection, source verification, and information validation....
Development
Code generation, debugging, testing, and development workflows
3,700 Skills
This skill provides an advanced financial modeling suite with DCF analysis, sensitivity testing, Monte Carlo...
Guide for creating Claude Code hooks with proper configuration, shell commands, event handling, and security...
Guide for creating custom Claude Code slash commands with proper structure, argument handling, frontmatter...
Guide for creating Claude Code plugins that bundle skills, agents, commands, hooks, and MCP servers for...
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when...
Patterns for building reactive apps including subscription management, optimistic updates, cache behavior, and...
Writing queries, mutations, actions, and HTTP actions with proper argument validation, error handling, internal...
Guidelines for building production-ready Convex apps covering function organization, query patterns, validation,...
Guidelines and examples for UI motion and animation. Use when designing, implementing, or reviewing motion, easing,...
Implementation standards for React/TypeScript/Next.js. Use when writing or reviewing frontend code, especially...
Test code with WordPress by starting a WordPress server. Use when testing changes to a WordPress plugin, a WordPress...
Use when writing tests that share state. Use when tests depend on other tests. Use when test order matters.
Use when implementing any new feature or function. Use when asked to "add tests later". Use when writing code before tests.
Always active. Tracks usage of code-craft skills across sessions. Log skill applications to enable analytics and...
Use when creating or modifying classes, modules, or functions. Use when feeling pressure to add functionality to...
Use when component does too many things. Use when mixing data fetching, logic, and presentation. Use when code is...
Use when working with API keys, passwords, or credentials. Use when asked to hardcode secrets. Use when secrets might leak.
Use when adding new functionality to existing code. Use when tempted to add if/else or switch branches. Use when...
Use when creating subclasses or implementing interfaces. Use when tempted to override methods with exceptions or...
Use when tempted to write clever code. Use when solution feels complex. Use when showing off skills instead of...
Use when creating mutation endpoints. Use when trusting frontend to prevent duplicates. Use when payments or...
Use when exposing internal state. Use when making fields public for convenience. Use when external code modifies...
Use when writing similar code in multiple places. Use when copy-pasting code. Use when making the same change in...