Use when tempted to add features "for later". Use when building "production-ready" systems before needed. Use when adding flexibility that isn't required yet.

Comprehensive backend development for building production-ready server-side applications with multiple frameworks, databases, and deployment strategies. Use when building APIs, services,...

Systematic framework for resurrecting and modernizing legacy codebases through archaeology, resurrection, and rejuvenation phases. Activate on "legacy code", "inherited codebase", "no...

Skill for integrating Better Auth - the comprehensive TypeScript authentication framework.

Skill for integrating Better Auth - the comprehensive TypeScript authentication framework.

Test-Driven Development (TDD) specialist enforcing write-tests-first methodology. MUST USE when: fixing bugs (버그 수정), implementing new features (기능 구현), refactoring code, '/fix-issue' invoked,...

Sets up new projects or improves existing projects with development best practices, tooling, documentation, and workflow automation. Use when user wants to start a new project, improve project...

Rust specialist with expertise in async programming, ownership patterns, FFI, and WebAssembly development

Guide AI agents in creating Browser Library tests using Playwright-powered automation with auto-waiting, assertion engine, and modern web features. Use when asked to create web tests with Browser...

Sets up new projects or improves existing projects with development best practices, tooling, documentation, and workflow automation. Use when user wants to start a new project, improve project...

Create Lunar collector plugins that gather SDLC metadata for guardrail enforcement. Use when building collectors (Bash scripts) that collect data from repositories, CI pipelines, or external APIs...

Research a topic from the last 30 days on social media (TikTok, Instagram, Facebook, Google Trends), become an expert on what's viral, and write copy-paste-ready prompts. Triggers include "social...

Find 10x product opportunities and high-leverage improvements. Use when user wants strategic product thinking, mentions '10x', wants to find high-impact features, or says 'what would make this 10x...

Build AWS SES email features with reCAPTCHA v3, Zod validation, XSS sanitisation, and rate limiting. Uses placeholders until env vars added to Vercel. Dual emails (owner + customer confirmation)....

Rename symbols across a codebase safely. Use when renaming functions, variables, classes, or other symbols and need to update all references.

Design-first methodology. Explore user intent, requirements and design before implementation. Turn ideas into fully formed specs through collaborative dialogue.

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Layered verification for OpenSpec changes. Use when: running tests after implementation, validating specific test layers, or checking test status.

Strategic job application planning and Resume SEO optimization. Approaches applications like marketing campaigns with market research, opportunity qualification, and content optimization. Activate...