cosmix

Restructures existing code to improve readability, maintainability, and performance without changing behavior.

REQUIRED skill for creating Loom execution plans.

Load before spawning subagents or running a loom stage as its main agent; skip for single-agent work. Delegation cost, briefs, waits, commits.

Go language expertise for idiomatic, production-quality code. Not for: an LLM's context window or a stage's context budget.

Comprehensive code review covering correctness, maintainability, performance, security, and best practices.

Meta-orchestration skill for Claude driving loom itself.

Rust language expertise for idiomatic, production-quality code.

C language expertise (C11/C17/C23) for memory-safe, portable, production-quality systems code.

Install the kit into a new project folder, from the kit folder. Asks where the project goes and what to make (a video, a blog post or both), copies the kit with install.sh, shows the system packages the human must install in a second terminal, saves a video's…

Begin a product media project in the project folder, or add a medium to one. Confirms or asks which media to make (a video, a blog post or both), keeps what /install saved (frame rate, piano), checks the machine with setup.sh, interviews the human, sets up…

Turn a written script into a spoken WAV with Gemini TTS (gemini-3.8-flash-tts) using a prebuilt voice and an optional style direction. Use when the user asks for narration, a voiceover, text-to-speech, an audio version of a text, or a spoken sample of a…

Set up and apply the project's brand guidelines for the video, the blog post, or both. Writes or reads BRAND.md and the brand/ folder (logo, fonts, palette, reference assets), generates design.json (fonts, colours, grain, logo) from them, checks them with…

Turn a written script into a spoken WAV with Gemini TTS (gemini-3.8-flash-tts) using a prebuilt voice and an optional style direction. Use when the user asks for narration, a voiceover, text-to-speech, an audio version of a text, or a spoken sample of a…

Set up and apply the project's brand guidelines for the video. Writes or reads BRAND.md and the brand/ folder (logo, fonts, palette, reference assets), generates design.json (fonts, colours, grain, logo) from them, checks them with check.py, and records the…