Skills from clawhub.ai/shiv19

High-risk skill: executes local CLI commands and downloads code via `npx -y endurance-coach@latest`, accesses `~/.endurance-coach/coach.db`, and instructs Strava syncs. It contains explicit commands like `ls ~/.endurance-coach/coach.db`, `auth`/`sync`, and `npx ... render` enabling shell execution, external network access, and credential handling.

This skill creates personalized triathlon, marathon, and ultra-endurance training plans and can sync with Strava to analyze training history. It instructs running CLI commands (`npx claude-coach auth`, `npx claude-coach sync`, `npx claude-coach query`, `npx claude-coach render`), reads/writes `~/.claude-coach/coach.db`, and requests `Client ID`/`Client Secret` for OAuth.