Claude as your endurance coach for marathons, triathlons, Ironman events, and more

Stockfish + LLM chess coach: an MCP server and web board that explain your mistakes in plain English

AI-powered learning coach with spaced repetition with Claude Code - master any knowledge faster with personalized syllabi and progress tracking

Practical Agent Skills — English-for-engineers coaching, Pi Agent setup, and more. Install via npx skills add.

Evidence-based learning engine — first-principles curricula, free-recall verification with receipts, FSRS-scheduled memory, and explorable artifacts. Learn anything; keep it.

A Claude skill blending psychology, philosophy, and wisdom traditions into a conversation partner with actual depth. Free, open-source, not a therapist.