router: Skill for Claude Code

.claude/skills/debug-codex-session/SKILL.md

debug-codex-session is a skill for Claude Code from workweave/router. It costs 112 tokens per session (4,523 once invoked), scanned B, original, Apache-2.0.

A debugging skill for investigating one Codex CLI session by its session ID. It compares the local conversation record with production router logs to determine what Codex displayed and what the upstream service returned.

In plain words
What is it for?
It is for diagnosing unexpected output or rendering in a specific Codex CLI session, including requests sent through the /v1/responses endpoint.
Why use it?
It helps explain differences between the response an upstream service sent and what appeared in the Codex interface.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is workweave/router's own configuration. It tells Claude Code how to work on router itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything router configures →

About the project

workweave/router is a model router, a proxy that receives requests from coding tools or applications and forwards each one to a suitable language model through a single endpoint. It is for routing requests across Anthropic, OpenAI, Gemini, and other OpenAI-compatible providers while keeping provider keys on the user's machine. The catalogue entries provide skills, commands, and instructions for using the router.

workweave/router · 5,593 stars · on GitHub · weaveos.com

Reuse

Borrowing it

Nothing to install: this file belongs to workweave/router. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/workweave/router/main/.claude/skills/debug-codex-session/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/workweave/router

Made for: Claude Code.

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 debug-codex-session

README.md
[![agentmods](https://agentmods.dev/badge/skills/workweave/router/debug-codex-session/github.svg)](https://agentmods.dev/skills/workweave/router/debug-codex-session)
Your own site
<a href="https://agentmods.dev/skills/workweave/router/debug-codex-session"><img src="https://agentmods.dev/badge/skills/workweave/router/debug-codex-session/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 debug-codex-session

Your own site · 80×15
<a href="https://agentmods.dev/skills/workweave/router/debug-codex-session"><img src="https://agentmods.dev/badge/skills/workweave/router/debug-codex-session.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 112 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,523 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: 5 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 17
    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 Agent Snooping · line 59
    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 Agent Snooping · line 102
    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 Prompt Injection · line 168
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • medium Rogue Agent · line 14
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
Origin unknown 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 $0.00112 $0.04523
Opus 5.5 $0.00045 $0.01809
Sonnet 5.5 $0.00022 $0.00905
Haiku 4.5 $0.00011 $0.00452

Measured 1mo ago against content hash dae9a45c51d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

debug-codex-session 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.

find ~/.codex/sessions -name "rollout-*<SESSION_ID>.jsonl" -type f
.claude/skills/debug-codex-session/SKILL.md · 274 lines

The source is not reproduced here

Licensed Apache-2.0

The repository is licensed Apache-2.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

1 file 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.

  1. 1mo ago First seen · 274 lines · 112 tokens per session scan B dae9a45c51d9

Subscribe to this mod's changes

debug-codex-session is a skill published in the GitHub repository workweave/router (5,593 stars, last pushed 2d ago), licensed Apache-2.0. It adds 112 tokens to every session and 4,523 once invoked, about $0.0004 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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