Show HN: Homunculus – A self-rewriting Claude Code plugin

[nikshepsvn]

Homunculus is a Claude Code plugin that watches how you work and writes new capabilities into itself.

If you keep doing something repeatedly—checking docs before API calls, running the same debug flow, formatting PRs a certain way—it notices and offers to automate it. Accept, and it writes a new markdown file into its own structure. The plugin literally changes based on what you do.

It can create: Commands (explicit shortcuts) Skills (context-triggered behaviors) Subagents (specialists for specific problem domains) Hooks (event-driven, like "run tests when these files change")

What actually works (v0.1): Commands are deterministic. Skills are probabilistic—they fire when Claude decides they're relevant, maybe 50-80% of the time. It's an experiment in making LLM tooling adaptive rather than static.

State stored in .claude/homunculus/. Each project gets its own instance.