The Agent Skills Directory

[COMMAND_EXECUTION]: The skill uses the cyeam CLI to interact with Trello. The instructions explicitly forbid the AI from constructing direct HTTP requests or guessing IDs. It mandates using established CLI commands like cyeam trello login, boards, and cards. These operations are standard for the skill's purpose and include user confirmation for actions that change state.
[CREDENTIALS_SAFE]: The skill implements a secure credential flow. It instructs the user to provide an API key via cyeam trello login, which then stores tokens in the system keychain or a restricted file (~/.cyeam/trello.json with 0600 permissions). It explicitly commands the agent to never output these credentials.
[DATA_EXPOSURE]: The skill handles Trello attachments by downloading them locally via the CLI (--out <local-path>) rather than passing raw URLs or sensitive data directly to third-party interfaces (like Feishu/Lark). This prevents 401/403 errors and ensures authentication is handled securely by the CLI environment.

trello