Best practices for production logging — structured data, wide events, high cardinality, and queryable logs. Use when implementing logging, debugging production issues, designing observability, or when asked "why can't I find anything in the logs?"
Advanced web search via Exa MCP server. Use when you need: (1) High-quality web search with better results than standard search, (2) Deep research across multiple sources, (3) Code context search, (4) Company research, (5) LinkedIn search, or (6) Crawling web pages. The Exa MCP provides tools: web_search (advanced search), get_code_context (deep code search), crawling_exa (page crawling), company_research_exa, linkedin_search_exa, and deep_researcher.
Implement Autumn billing and payments in applications. Use when building subscription systems, usage-based billing, paywalls, feature gates, or monetization features. Autumn is an open-source billing layer between your app and Stripe.
Builds accessible, consistent UI components using shadcn/ui with Tailwind v4 following strict design system guidelines. Use for frontend development, component creation, design implementation, and UI consistency across projects.
Set up btca (Better Context) in a project by scanning dependencies, proposing resources, creating btca.config.jsonc, updating AGENTS.md, and explaining usage modes. Use when asked to configure btca/better-context for a repo.
Fetches source code for npm packages and GitHub repositories to provide AI agents with implementation details beyond types. Use when you need to understand how a package works internally or reference its actual implementation.
Create or update a Makefile with dev and build targets that run the repo's actual development and build commands. Use when asked to standardize run/build commands or add Makefile targets.