Skills, subagents, slash commands, hooks, settings, plugin bundles and MCP servers that install into Claude Code. 389,459 indexed, measured the same four ways as everything else here.
Build a complete, polished, production-quality browser game inside a single self-contained HTML file using only vanilla HTML, CSS and JavaScript — no frameworks, no libraries, no external assets. Use this skill whenever the user asks for a game, a playable demo, a prototype, an interactive toy, or anything "inspired…
Usa esta skill cuando el usuario pida crear, redactar o revisar una especificación (spec) de una funcionalidad. Guía una entrevista de requisitos y produce un spec.md siguiendo la plantilla del equipo.
Captures and maintains learnings, errors, and corrections. Use when a command fails, the user corrects an assumption, a capability is missing, knowledge is outdated, or a better approach is found. Review relevant saved guidance before major tasks, reuse, and promotion; revalidate it according to what could change and…
Deep security audit of a smart-contract repo OR a live on-chain contract by address - detect Solidity, model the protocol invariants and trust boundaries first, run Slither (best-effort) plus a bounded agentic pass that hunts for a path breaking each invariant, triage, adversarially verify, prove with a fuzzer, and…
A structured process for deciding what a web page should do, what it should contain, how it should be arranged, and how it should look. It ends with a handoff package for development.
Detect and upgrade pre-v8 react-horizontal-scrolling-menu patterns that agents trained on older data still generate: destructured visibleElements/isFirstItemVisible/isLastItemVisible/initComplete (removed v6), Separator items, separatorClassName and getPrevItem/getNextItem (removed v7), the Arrows prop (removed v3)…
A library of 35 curated colour palette styles for building beautiful, editable Feishu / Lark (飞书) whiteboards from SVG. Use this whenever the user wants to create or draw a Feishu whiteboard, infographic, diagram, poster, or visual explainer and wants it to look polished, on brand, or in a particular aesthetic, or…
Run a large-scale language migration with the six-step process: create the map and the rules, stress-test the rules, translate everything, compile, run it, match behavior. Use when the user wants to migrate, port, or rewrite a codebase from one language to another ("migrate this to Rust", "port our Python CLI to…
A toolkit for programming and debugging microcontrollers through hardware probes such as ST-Link or CMSIS-DAP. OpenOCD can act as a GDB Server, allowing a debugger to inspect source code, registers, memory, breakpoints, and program execution.
Applies Steve Blank's Customer Development methodology from The Four Steps to the Epiphany. Use when a startup is searching for customers and a business model before scaling. Covers Customer Discovery, Customer Validation, Customer Creation, and Company Building. Triggers include 'we built it but no one's buying'…
Apply, review, and explain discriminated unions in TypeScript. Use automatically for tasks involving mutually exclusive variants, invalid state prevention, exhaustiveness checking, variant-specific object properties, application state, function arguments, or React props.
Use when a web fetch is blocked — Cloudflare, DataDome, PerimeterX, Akamai, a 403/429, a CAPTCHA/"Press & Hold", "Access denied", an empty JavaScript shell, or a page whose data only appears after client-side rendering. Drives a real recompiled-Chromium stealth engine (Fortress) via the Fortress MCP to fetch, extract…
Check whether ghostty (the terminal core termio embeds via the termio-sh/libghostty-swift fork) has shipped anything worth pulling since the binary termio is currently pinned to. Resolves the pinned ghostty sha, diffs it against ghostty main, filters the gap for changes that actually reach termio's embedded…
Advanced full SEO audit skill. Runs its own full workflow from local scripts, including the basic SEO checks plus PageSpeed, social metadata, and advanced review modules when available.
Provides guidance for writing, optimizing, and benchmarking C++ CPU kernels with SIMD intrinsics (AVX2/AVX512) for the Hugging Face kernels ecosystem. Includes a two-phase workflow: Phase 1 correctness (generic → AVX2) and Phase 2 performance exploration (AVX512 with branching trial loop), runtime CPU dispatch, OpenMP…
Code refactoring specialist focused on clean architecture, SOLID principles, and technical debt reduction. Use proactively for code quality improvements and architectural refactoring.
A browser video editor you can drive from Claude Code. The timeline is one JSON document — patch it and the open editor hot-reloads in 150 ms. Cuts, keyframes, transitions, kinetic captions, chroma key, speed ramps, and MP4 export via ffmpeg.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: