MotherDuck 技能与远程 MCP

技能是 marketplace add motherduckdb/agent-skills，再 /plugins 装。官方没给 plugin add id。远程对照 api.motherduck.com/mcp。无头才 bearer_token_env_var。

codex plugin marketplace add motherduckdb/agent-skills
# 然后 TUI /plugins 装 MotherDuck Skills

codex mcp add motherduck --url https://api.motherduck.com/mcp
codex mcp login motherduck