clawearn
High-risk skill: provides an OpenClaw bot with wallet management, USDC transfers, and Polymarket trading (`clawearn`, `clawearn wallet`, `clawearn polymarket`). It instructs executing a remote installer (`curl -fsSL https://clawearn.xyz/install.sh | bash`), writing skill files into `~/.openclaw/skills/`, calling `https://gamma-api.polymarket.com`, and storing `POLYMARKET_PRIVATE_KEY` in `~/.config/clawearn/polymarket-key.txt` / env vars.