Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add LeeJuOh/claude-code-zero/plugin install codex-advisorWrote 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/skills/leejuoh/claude-code-zero/codex-setup)<a href="https://agentmods.dev/skills/leejuoh/claude-code-zero/codex-setup"><img src="https://agentmods.dev/badge/skills/leejuoh/claude-code-zero/codex-setup/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.
<a href="https://agentmods.dev/skills/leejuoh/claude-code-zero/codex-setup"><img src="https://agentmods.dev/badge/skills/leejuoh/claude-code-zero/codex-setup.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00030 | $0.01302 |
| Opus 5.5 | $0.00012 | $0.00521 |
| Sonnet 5.5 | $0.00006 | $0.00260 |
| Haiku 4.5 | $0.00003 | $0.00130 |
Grade B, and why
codex-setup 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 9d 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.
Preflight check and `~/.codex/config.toml` configuration helper for codex-advisor. How it starts
The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Codex Setup & Configuration
Preflight check and ~/.codex/config.toml configuration helper for codex-advisor.
Mode Selection
Parse $ARGUMENTS:
| Input | Action |
|---|---|
--status or no args |
Run preflight + show current config |
--model MODEL |
Set default model in config.toml |
--effort LEVEL |
Set reasoning effort in config.toml |
| Combined flags | Apply all settings |
Preflight Check
One call finds the Official Codex plugin and asks its companion what is installed and signed in:
"${CLAUDE_PLUGIN_ROOT}/scripts/codex-job.sh" setup
If it fails with Official Codex plugin not found, guide the user through the full installation process:
- Tell the user to run these commands in order (they must type these themselves since they are interactive CLI commands):
/plugin marketplace add openai/codex-plugin-cc— adds the Official Codex marketplace/plugin install codex@openai-codex— installs the plugin from that marketplace/reload-plugins— activates the newly installed plugin
- After the user completes the steps, re-run the check to verify.
Do NOT just print the steps and move on. Wait for the user to complete them. Until then, report the CLI and authentication rows as unknown — only the companion checks them.
Otherwise fill the status report from the JSON: codex.available and codex.detail for the CLI, auth.loggedIn and auth.detail for authentication. Relay nextSteps, except the review-gate one — --enable-review-gate belongs to the Official plugin's own /codex:setup and Stop hook, which codex-advisor does not wrap.
Configuration Management
Read current config
"${CLAUDE_PLUGIN_ROOT}/scripts/codex-job.sh" config
Set Model / Effort (--model, --effort)
Both flags are handled by one call. Empty string = no change for that field:
"${CLAUDE_PLUGIN_ROOT}/scripts/apply-codex-config.py" "<model or empty>" "<effort or empty>"
The script's first stdout line is:
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.
- 9d ago Changed · -22 lines · -20 tokens per session d8d5807f7d2c
- 22d ago Changed 97fc15b55184
- 26d ago Changed 36e937173f5f
- 1mo ago First seen · 128 lines · 50 tokens per session scan B ef6c98f1bb51
codex-setup is a skill published in the GitHub repository LeeJuOh/claude-code-zero (52 stars, last pushed 3d ago), licensed MIT. It adds 30 tokens to every session and 1,302 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.
Other skills, from other repositories
dcf-model
Build discounted cash flow valuation workbooks in Excel.
mle-workflow
Production machine-learning engineering workflow for data contracts, reproducible training, model evaluation, deployment, monitoring, and rollback. Use when building, reviewing, or hardening ML systems beyond one-off notebooks.
autonomous-loops
Patterns and architectures for autonomous Claude Code loops — from simple sequential pipelines to RFC-driven multi-agent DAG systems.
ascii-video
ASCII video: convert video/audio to colored ASCII MP4/GIF.
grounded-citations
Ground answers and documents in cited, verifiable sources.
hermes-agent-skill-authoring
Author in-repo SKILL.md files: frontmatter and structure.