A workflow where Codex plans and reviews a coding task while Claude Code carries out the implementation. It repeats the review and revision cycle when needed.

Use it to break down feature work, execute ordered tasks, verify the result, and respond to review findings.

It separates planning, coding, and review so implementation can be checked against an explicit technical plan.

codex-cto — Skill for Claude Code and Codex by tdimino

Install

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.

Any agent

npx skills add tdimino/claude-code-minoan --skill codex-cto

Clone the repo

git clone --depth 1 https://github.com/tdimino/claude-code-minoan

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tdimino/claude-code-minoan/codex-cto/github.svg)](https://agentmods.dev/skills/tdimino/claude-code-minoan/codex-cto)

Your own site

<a href="https://agentmods.dev/skills/tdimino/claude-code-minoan/codex-cto"><img src="https://agentmods.dev/badge/skills/tdimino/claude-code-minoan/codex-cto/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/tdimino/claude-code-minoan/codex-cto"><img src="https://agentmods.dev/badge/skills/tdimino/claude-code-minoan/codex-cto.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,157 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

high Agent Snooping · line 79
Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.

Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
high Excessive Agency · line 107
Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.

Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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 5.1	$0.00042	$0.01157
Opus 5	$0.00021	$0.00579
Sonnet 5	$0.00008	$0.00231
Haiku 4.5	$0.00004	$0.00116

Measured 8d ago against content hash 014e708399e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

codex-cto 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/cto-invoke.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Omit `--model` to use the default from `~/.codex/config.toml`.

skills/integration-automation/codex-cto/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex CTO — Inverted Orchestration

Codex plans and reviews. Claude Code executes. This inverts the codex-orchestrator pattern: instead of Claude Code delegating to Codex subagents, Codex directs Claude Code as the engineering team.

Protocol

1. CTO plans   →  cto-invoke.sh plan "<objective>"
2. You execute  →  native tools (Read, Edit, Write, Bash, Glob, Grep)
3. CTO reviews  →  cto-invoke.sh review "<objective + results>"
4. Loop         →  if "revise", fix and re-submit for review (max 5 iterations)

Step 1: Get the Plan

Run the plan phase with the user's objective:

~/.claude/skills/codex-cto/scripts/cto-invoke.sh plan "<OBJECTIVE>" [--model MODEL]

Parse the returned JSON. It contains:

objective — what to accomplish
analysis — CTO's assessment of the codebase
strategy — high-level approach
tasks[] — ordered task list with IDs, actions, targets, descriptions, acceptance criteria, and dependencies
verification — commands to run after all tasks complete

Step 2: Execute Tasks

Work through each task in dependency order using native tools. For each task:

Read the description and acceptance_criteria
Execute the action (create_file, modify_file, delete_file, run_command, verify)
Verify each acceptance criterion before moving to the next task
Track what was done and what the outcome was

Do not deviate from the plan without reason. If a task is blocked or the plan has an error, note it and continue with unblocked tasks. Report blockers in the review submission.

Step 3: Submit for Review

After executing all tasks, run the review phase. Include the original objective and a summary of what was done:

~/.claude/skills/codex-cto/scripts/cto-invoke.sh review "<OBJECTIVE>. Results: <summary of what was done, any issues encountered>"

Parse the returned JSON:

verdict: "approve" — done. Report success to the user.
verdict: "revise" — check task_reviews for feedback and revised_tasks for new/updated tasks. Fix issues and re-submit.
verdict: "abort" — fundamental problem. Report the CTO's reason to the user and stop.

Read the full file on GitHub · 116 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

8d ago First seen · 116 lines · 42 tokens per session scan B 014e708399e1

Subscribe to this mod's changes

codex-cto is a skill published in the GitHub repository tdimino/claude-code-minoan (41 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 1,157 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 2026-09-03.

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