Verification Before Completion

Using Superpowers

jnMetaCode

Meta-skill that establishes how to find and invoke skills before any response, with platform-specific tool references.

Writing Plans

jnMetaCode

Writes detailed, step-by-step implementation plans for multi-step coding tasks before any code is written.

Using Git Worktrees

jnMetaCode

Sets up an isolated Git worktree for feature work, preferring native tools and falling back to git worktree.

Test Driven Development

jnMetaCode

Guides an agent through strict test-driven development: write a failing test first, then minimal code, then refactor.

Requesting Code Review

jnMetaCode

Dispatches a code-review subagent with organized context to verify completed work before merging.

Mcp Builder

jnMetaCode

A methodology for designing, implementing, testing and deploying production-grade MCP servers and tools.

Playground

anthropics

Featured

Builds self-contained interactive HTML playgrounds with controls, live preview, and copyable prompt output.

M5 Onboard

anthropics

Featured

Provisions M5Stack ESP32 boards by detecting them on USB, flashing UIFlow 2.0 firmware, and installing a MicroPython app bundle.

Cardputer Buddy

anthropics

Featured

Guides iterating on a Cardputer-Adv MicroPython app bundle: adding apps, pushing files over USB-serial, tailing logs, and running REPL commands.

Web Design Guidelines

vercel-labs

Featured

Reviews UI code against Web Interface Guidelines fetched from a remote source and reports findings as file:line entries.

Vercel React Native Skills

vercel-labs

Featured

React Native and Expo best-practice rules covering list performance, animation, navigation, UI patterns, state, and monorepo setup.

Vercel React Best Practices

vercel-labs

Featured

Vercel's React and Next.js performance guidelines, organized as 70 rules for writing, reviewing, and refactoring code.