Build custom skills system for Pi

[bBlazewavE]

Summary

Add a skills framework that extends Pi with reusable, composable capabilities — similar to slash commands in Claude Code. Skills would live in the repo and be loaded by Pi at startup.

Proposed structure

skills/
  review-pr.md      ← prompt template for PR reviews
  refactor.md       ← guided refactoring workflow
  debug.md          ← structured debugging playbook
  commit.md         ← conventional commit helper
  explain.md        ← code explanation with context

How it works

• Each skill is a markdown file with a system prompt and optional tool configuration
• Pi loads skills from the skills/ directory on startup
• Users invoke skills by name (e.g., /review-pr, /debug)
• Skills can reference context (current file, git diff, project structure)

Acceptance criteria

• skills/ directory with at least 3 starter skills
• Pi config updated to load skills from the directory
• just skills-list recipe to show available skills
• Documentation in README

[bBlazewavE]

Excellent feature idea. A skills system for Pi would be powerful, but it requires understanding Pi's plugin/skill architecture and likely contributions to Pi itself. I'm noting this as a longer-term enhancement. If Pi releases official skills documentation, I'll revisit this.