codex-debugging

codex-debugging is a skill for Claude Code, Codex from steipete/agent-scripts. It costs 24 tokens per session (267 once invoked), scanned B, original, MIT.

A troubleshooting guide for Codex, an AI coding tool, including its command line, interface, configuration, and tool connections.

In plain words
What is it for?
It helps diagnose configuration parsing, prompts, tool behavior, app-server communication, and runtime bugs.
Why use it?
It gives a focused way to investigate unexpected Codex behavior by checking the relevant source code, settings, and tests.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads ~/.codex paths; mentions AGENTS.md; mentions Codex.

Good fit It helps diagnose configuration parsing, prompts, tool behavior, app-server communication, and runtime bugs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/steipete/agent-scripts/codex-debugging
About the project

Agent Scripts is a repository of shared instructions, reusable skills, helper scripts, and local safeguards for coding-agent workflows across multiple workspaces. It is for maintaining common agent behavior and portable development utilities between repositories.

steipete/agent-scripts · 7,379 stars · on GitHub · steipete.me

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 steipete/agent-scripts --skill codex-debugging
Clone the repo
git clone --depth 1 https://github.com/steipete/agent-scripts

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.

agentmods badge for codex-debugging

README.md
[![agentmods](https://agentmods.dev/badge/skills/steipete/agent-scripts/codex-debugging/github.svg)](https://agentmods.dev/skills/steipete/agent-scripts/codex-debugging)
Your own site
<a href="https://agentmods.dev/skills/steipete/agent-scripts/codex-debugging"><img src="https://agentmods.dev/badge/skills/steipete/agent-scripts/codex-debugging/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.

agentmods 80×15 button for codex-debugging

Your own site · 80×15
<a href="https://agentmods.dev/skills/steipete/agent-scripts/codex-debugging"><img src="https://agentmods.dev/badge/skills/steipete/agent-scripts/codex-debugging.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 267 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: 1 finding, 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 29
    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
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.00267
Opus 5.5 $0.00010 $0.00107
Sonnet 5.5 $0.00005 $0.00053
Haiku 4.5 $0.00002 $0.00027

Measured 1mo ago against content hash 886a702668f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

codex-debugging 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 1mo 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.

3. Check local config in `~/.codex/config.toml` only after understanding the source contract.
skills/codex-debugging/SKILL.md · 36 lines

What it actually says

Codex Debugging

Use when investigating Codex CLI/app behavior, config parsing, tool behavior, prompts, MCP/app wiring, or runtime bugs.

Source First

Prefer local source before web/docs:

cd ~/Projects/codex
sed -n '1,220p' codex-rs/AGENTS.md

Then search targeted areas:

rg "<symbol|setting|error|feature>" codex-rs/{core,tui,exec,cli,app-server,app-server-protocol,config}

Workflow

  1. Identify whether the behavior is CLI, TUI, app server, protocol, config, or exec/tooling.
  2. Read the owning module and adjacent tests before proposing changes.
  3. Check local config in ~/.codex/config.toml only after understanding the source contract.
  4. Prefer small repros or focused tests over broad speculation.

Notes

  • For OpenAI API/product docs, use the official-docs path only when source is insufficient.
  • For local browser automation in CLI, use $browser-use; the bundled Browser plugin is Codex app-only.
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.

  1. 1mo ago First seen · 36 lines · 24 tokens per session scan B 886a702668f1

Subscribe to this mod's changes

codex-debugging is a skill published in the GitHub repository steipete/agent-scripts (7,379 stars, last pushed yesterday), licensed MIT. It adds 24 tokens to every session and 267 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.

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