Apex
Systematic implementation using APEX methodology (Analyze-Plan-Execute-eXamine) with parallel subagents and self-validation. Use when implementing features, fixing bugs, or making code changes that benefit from structured workflow.
Scaffold
Bootstrap a new web project on a strictly opinionated Cloudflare Workers stack — Next.js 16 or Astro 6, TypeScript strict, pnpm, Biome, Tailwind. No fallbacks: no Vercel/Netlify, no ESLint/Prettier, no swap. Skip if the user wants any of these. Use when the user says "start a new project", "bootstrap", "init", "scaffold", "create a new site", or is working in an empty directory and wants producti…
Markitdown
Convert any document to Markdown with Microsoft's `markitdown` CLI — PDF, Word, Excel, PowerPoint, HTML, CSV, JSON, XML, ZIP, EPub, images (OCR/EXIF), audio (transcription), and YouTube URLs. Use whenever the user wants to extract text from a binary document, transcribe audio, OCR an image, scrape a YouTube transcript, or pre-process a file for an LLM context window — even when they just say "con…
Video Loop
Create a looping background video — crossfade the loop point, encode optimized MP4 + WebM, optional poster frame. Use whenever the user has a video that needs to loop for web use (hero sections, backgrounds, landing-page ambience), wants to fix a visible jump at the loop point, or needs to optimize a clip for web delivery — even if they just say "make this loop smoothly" or "compress this for the…
Foo
Fixture skill for repo-kind classifier tests.
Forge
Pre-implementation thinking — research the problem space, weigh approaches with devil's-advocate rigor, decide what's reversible and conventional while surfacing the load-bearing forks for the user, and emit one apex-ready plan. Use whenever a non-trivial task needs thinking, comparison, or decomposition before code — even when the user doesn't say "forge" (e.g. "should we", "what's the best way"…
Notion
Notion access from Claude Code via the official MCP connector (default path, ~95% of intents) or the `ntn` CLI (only for file uploads, Notion Workers, headless/CI scripts, raw API discovery, shell piping). Routes intent to the right transport, pre-flights the Notion-flavored Markdown spec and target data-source schema, and pins the empirical gotchas not surfaced by tool descriptions or `ntn --hel…
Brand Voice
Govern the BRAND-VOICE.md — extract a brand's writing voice from URL, Notion page, MD file/directory, or interview into a structured executable doc; update incrementally; diff versions; validate the canonical format; show testable rules. Supports multi-voice via `voice.extends` (founder on corporate, persona on institutional, multi-host) with `_replace`/`_remove` overrides. Consumed by writing sk…
Humanize En
Strip AI writing tells from English prose — em-dash overuse, rule of three, negative parallelisms, AI vocabulary (delve, tapestry, crucial, pivotal, underscore, showcase), vague attributions, promotional tone, conjunctive padding (moreover, furthermore, indeed), hedging, signposting, chatbot artifacts. Preserves meaning, structure, code blocks, links, anchors, and frontmatter — rewrites only the…
Audio Loop
Use this skill whenever a user has an audio file (.wav/.mp3/.flac/etc.) that needs to loop as background on a website or web page — hero ambience, landing-page atmosphere, portfolio mood audio, ambient wind/rain/ocean/forest/breeze/pad beds, or any "play quietly behind the page while users read/scroll/interact" use case. Trigger on intents like making a clip loop without audible gaps or boundary…
Claude Md
Create and optimize CLAUDE.md memory files or .claude/rules/ modular rules for Claude Code projects. Covers file hierarchy, content structure, path-scoped rules, best practices, and anti-patterns. Use when working with CLAUDE.md files, .claude/rules directories, setting up new projects, or improving Claude Code's context awareness — even when the user just says "memory file" or mentions Claude in…
Design System
Govern an existing DESIGN.md — Google's open standard for design tokens (YAML frontmatter + eight prose sections). Auto-activates during UI edits to enforce token-only sourcing for colors, typography, spacing, and corner radius when a DESIGN.md is present; steps aside when none exists — it never forces or authors one (`/award-design` authors it up front, then builds under it). Exposes seven CLI-b…
Ultrapex
Outcome-driven end-to-end implementation for frontier models — scope the task, commit to an approach, build, and adversarially verify with parallel subagents, in one run. Use it on a Fable-class session whenever the user wants something implemented — "implement", "build", "add", "fix", "refactor", a multi-file feature, or an ambiguous spec that needs scoping first — even when they don't name a wo…
Suno Produce
Turn a music brief into Suno v5.5-ready prompt artifacts — TRACK.md per generation, optional ALBUM.md for multi-track projects, optional ARTIST.md for artist-scoped identity. Artifact-emit-only — the user copy-pastes the prompt block into Suno's UI, listens, then iterates via `revise`. No API integration. Hardens the copyright contract — never lets artist names or copyrighted citations through in…
Download Media
Download video or audio from ~1800 sites (YouTube, Vimeo, SoundCloud, Twitch, X…) with the `yt-dlp` CLI — full videos, mp3 audio, playlists, time-range clips, subtitles, capped resolutions. Use whenever the user wants to download, save, grab, or rip a video/audio/playlist from a URL, extract a song as mp3, clip a segment, or fetch subtitles — even when they just say "download this", "get the audi…
Code Ultrareview
Eight-axis judgment code review for the current diff — Correctness, Simplification, Tests, Documentation, Style, Intent, Design/API, Performance (+ Coherence on metadata changes). Five-phase pipeline scope → deterministic tool battery (npx/uvx-preferred, zero-install for the JS + Python majority) → 8 parallel LLM axis reviewers → Haiku validators on sub-80 findings (verbatim rubric, ≥80 threshold…
Agent Creator
Create, configure, and orchestrate Claude Code subagents — specialized Claude instances with focused roles and limited tool access. Covers YAML frontmatter (name, description, tools, model, permissions, hooks, MCP servers), system prompt design, tool restriction patterns, background execution, and multi-agent orchestration. Use whenever the user mentions subagents, delegation, specialists, agent…
Oneshot
Single-pass feature implementation using Explore → Code → Test. Ships focused changes at maximum speed, with a built-in circuit breaker that stops and recommends `/ultrapex` (or `/apex`) or `/forge` when the task turns out more complex than it looked. Use this whenever the user wants a quick win on a single, focused task — even when they don't say "oneshot" (e.g. "just", "quickly", "small change"…
Write Clear Readme
Author, audit, or polish a project README — clarity, structure (Pattern A per-section collapse / Pattern B grouped / Pattern C per-entry), wording concision, anchor integrity. Reads the repo first, proposes diffs, applies on approval. Use when creating, restructuring, auditing, optimizing, or polishing a README for clarity, concision, or scannable structure — "write readme", "audit readme", "poli…
Award Design
World-class frontend design engineer for award-winning websites (Awwwards SOTD 7.5+, FWA, CSSDA). Takes the lead on frontend design and build — forces a committed, anti-default visual universe, writes it as a DESIGN.md, then builds the frontend itself under that direction with real assets, premium motion, and anti-AI-slop discipline. Adapts to an existing DESIGN.md and alerts when it is thin. A r…