Build your skill system (skills, evals, and the architecture rules)
Ready now119 skill folders with SKILL.md contracts, eval assertions, the skill-creator tooling, the DRY rule that cross-cutting rules live once in ~/.claude/knowledge, and the quickstart that explains the always-on gates.
Kit
workspace-os
You need
| Account | Why | Free or paid | Plan |
|---|---|---|---|
| Claude Code (Anthropic Claude Pro or Max) | The AI operator every system runs through. Skills, hooks, memory, MCP servers and the Brain plugin all load inside Claude Code. | Paid | Claude Pro (20 USD/mo) works for light use; Max (100 USD or 200 USD/mo) for daily multi-hour sessions. Anthropic terms require each user to hold their own subscription; never share a login. |
| Python 3.12 + uv | Runs every pipeline script (video gates, library export, research cache, Brain export, PDF generator, MIDI tools) inside per-project virtual environments. | Free | Free. |
What you bring
- Your 3 to 5 repeated tasks, to turn into skills
The steps
- Capture intent for each skill
- Write the SKILL.md contract
- Apply the architecture rules (the cross-cutting test)
- Write the evals from your corrections
- Create the self-improve loop
- Test each skill five times by hand
- Schedule the eval loop
- Monthly health check
Goes further if you have already built Set up your Claude Code workspace operating system. You can build this without it.
Get the full playbook
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