Manage Providers

Provider management skill for plan-marshall. Stores credentials outside LLM reach in ~/.plan-marshall-credentials/, handles all user interaction via Python scripts (the LLM never sees secrets), and provides a RestClient for authenticated HTTP requests.

Enforcement

Execution mode: Route to appropriate subcommand script via credentials.py dispatcher.

Prohibited actions:

• Never print, log, serialize, or expose credentials to stdout, stderr, or TOON output
• Never read credential files directly — all access goes through _providers_core.py
• Never bypass HTTPS enforcement when auth headers are configured
• Never pass secrets as CLI arguments or through the LLM — secrets go into files directly by the user