Check providers
檢查 provider
check_providers.py looks for codex, agy or gemini, and grok, and sends each one a one-line prompt. If a CLI is installed but cannot answer, Claude reports it as 測不到帳號 (account not reachable).
check_providers.py 會找 codex、agy 或 gemini,以及 grok,並各送一句測試提示。裝了卻無法回應的 CLI,Claude 會回報「測不到帳號」。