Each tool maps to a distinct lifecycle operation: send input, poll progress, approve requests, cancel execution, or inspect sessions. The boundaries are clear even though send and poll both involve waiting, because their descriptions explain that send starts/continues work while poll only observes it.

All tools share a consistent codex_ prefix, and four of five use clear action verbs. codex_sessions is noun-based and combines list/detail behavior, which is a minor deviation from the otherwise consistent verb pattern.

Five tools are well-scoped for a Codex execution wrapper, covering the essential lifecycle without redundant endpoints. Each tool earns its place and no obvious duplicate surface exists.

The set covers sending prompts, continuing threads, polling, approvals, cancellation, and session history, which supports the core workflow. Minor gaps include no explicit session deletion or model/configuration discovery, but agents can work around these.