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Check native Codex custom-agent TOML, role clarity, supported overrides, authority, and delegation behavior. Use before installing an agent or after changing its instructions, tools, model, or sandbox.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Start here for the nddev-builder toolkit. Indexes the Codex artifact families and the creator, checker, reviewer, and workflow skill that owns each, points at the single reference for schemas and current (Beta, experimental, or under-development) surfaces, and routes the task to the right skill. Use first whenever building, checking, reviewing, or releasing a Codex artifact, or when unsure which builder skill applies.
A guided first run of the nddev-builder toolkit — from zero to a working, checked Codex artifact in ordered steps. Use when new to nddev-builder, onboarding, or unsure which builder skill to start with.
Create or revise a Codex marketplace catalog with valid plugin sources, categories, installation policy, and authentication policy. Use when publishing local or remote plugin collections.
Check a managed Codex requirements.toml layer for supported keys, permission-profile consistency, and a valid lower-layer default. Use before delivering managed /etc/codex or MDM requirements.
Create a managed Codex requirements.toml layer that constrains permission profiles and other admin policy. Use when authoring the /etc/codex or MDM-delivered managed requirements a lower config layer must satisfy.
Install and iterate on a Codex plugin locally in developer mode: the install, reinstall, and cachebuster test loop for a plugin under development, run against an isolated install and never live state. Use when running or iterating on a plugin, its skills, MCP, hooks, or bundled app locally.
| name | codex-agent-checker |
| description | Check native Codex custom-agent TOML, role clarity, supported overrides, authority, and delegation behavior. Use before installing an agent or after changing its instructions, tools, model, or sandbox. |
Resolve every ../../scripts and ../../references path relative to this SKILL.md directory, never the caller working directory.
Validate both the TOML contract and whether the agent can be delegated safely and predictably.
Read ../../references/codex-artifact-contracts.md and locate the standalone agent TOML.
Run:
python3 ../../scripts/check_codex_artifact.py agent .codex/agents/reviewer.toml
Confirm required identity and instruction fields are present, supported, and internally consistent.
Review the description as a routing contract and the developer instructions as a self-contained work envelope.
Check model, reasoning, sandbox, skills, and MCP overrides for necessity and least privilege.
Reject plugin-bundled custom agents, synthetic inherited MCP declarations, secrets, and machine-specific absolute paths.
Delegate a representative bounded task when a Codex runtime is available; verify scope, evidence, and report format.
Return PASS only when structural and delegation checks succeed. Otherwise return FAIL with the TOML path, key or instruction finding, risk, and correction.