Pattern → SKILL.md compiler for Claude Code. Three pluggable ingestors (MDX lessons, Jupyter notebooks, custom), one type-safe pipeline, local atomic writes to ~/.claude/skills/. MCP server output is the planned second target. Part of akaOSS.
Part of [akaOSS](https://www.akaoss.dev/projects/collapse) — https://www.akaoss.dev/projects/collapse **A Claude Code skill-building framework.** Next.js 16 + TypeScript — three pluggable ingestors (MDX lessons, Jupyter `.ipynb` / MyST `.md`, and a one-file extension pattern for any source format) feed a typed pipeline that compiles each pattern into a `SKILL.md` and atomically writes it to `~/.claude/skills/`.