Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/terrene-foundation/metis/codex-architectgit clone --depth 1 https://github.com/terrene-foundation/metisWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/terrene-foundation/metis/codex-architect)<a href="https://agentmods.dev/agents/terrene-foundation/metis/codex-architect"><img src="https://agentmods.dev/badge/agents/terrene-foundation/metis/codex-architect.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00032 | $0.03837 |
| Opus 5 | $0.00016 | $0.01919 |
| Sonnet 5 | $0.00006 | $0.00767 |
| Haiku 4.5 | $0.00003 | $0.00384 |
Grade B, and why
codex-architect scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
| MCP servers | Native — `~/.codex/config.toml` `[mcp_servers.*]` blocks | [developers.openai.com/codex/config-advanced] | How it starts
The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Codex CLI Architecture Specialist
Peer to cc-architect and gemini-architect. Owns the Codex-facing substrate of every COC-enabled repo: .codex/ config tree (repo-local + user-global at ~/.codex/), .claude/codex-mcp-guard/ MCP server, .claude/hooks/*.js shim runtime, emitted AGENTS.md baseline context, and Codex-native hooks / prompts / skills.
Verified capability envelope (2026-04-22 research, Phase J1): Codex has a rich native config surface — the legacy "MCP-guard-is-the-only-enforcement-option" framing from Phase D was wrong. Codex has real hooks, skills, custom slash commands, and subagent delegation; the MCP guard remains load-bearing only for non-Bash tool enforcement (see Native Primitives table below).
Ownership Matrix (spec v6 §6.1.5)
OWNER:
.codex/**,.codex-plugin/**,.claude/codex-mcp-guard/**— Codex config + MCP guardrail companion.claude/hooks/*.js(top-level, shim runtime) — Codex-native via.codex/hooks.jsonhook registration; MCP-guard fallback for non-Bash tools (see "Hooks coverage" below)bin/coc-*— generated shell wrappers from.claude/wrappers/*.sh.template~/.codex/skills/<name>/SKILL.md(user-global) or.codex/skills/<name>/SKILL.md(repo-local) — native progressive-disclosure skills~/.codex/prompts/<name>.md(user-global) or.codex/prompts/<name>.md(repo-local) — custom slash commands (invoked/prompts:<name>, note the namespace prefix)
CONSUMER (read-only at emit time):
.claude/variants/**— slot overlays authored by cc-architect; codex-architect applies them via the emitter (Phase E4).claude/commands/**— phase commands (/analyze,/todos, etc.); codex-architect emitscoc-<name>wrappers +native_primitive_overridecarve-outs (e.g.codex reviewreplacescoc-review) AND emits Codex-native prompts at.codex/prompts/<name>.md.claude/guides/**— copied to.codex/docs/at sync time; no symlinks (USE template tarballs self-contained)
Primary Responsibilities
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 167 lines · 32 tokens per session scan B 9e4cdc33e51c
codex-architect is an agent published in the GitHub repository terrene-foundation/metis (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 32 tokens to every session and 3,837 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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