codex-advisor

A second-opinion assistant that asks another GPT-based coding tool for advice before major decisions. It is provided as a Codex plugin with its own agents and hooks.

In plain words
What is it for?
Use it to request another review or recommendation before making a significant technical choice.
Why use it?
It gives developers an additional viewpoint when a decision is important or uncertain.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add fcakyon/claude-codex-settings
agentmods
npx agentmods add plugins/fcakyon/claude-codex-settings/codex-advisor
Clone the repo
git clone --depth 1 https://github.com/fcakyon/claude-codex-settings

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

codex-advisor scanned grade A with 0 findings 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 yesterday.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/codex-advisor/.claude-plugin/plugin.json · 12 lines

What it actually says

{
  "name": "codex-advisor",
  "version": "1.1.2",
  "description": "Get a second opinion from GPT via Codex CLI before big decisions.",
  "author": {
    "name": "Fatih C. Akyon"
  },
  "agents": "./claude-agents/codex-advisor.md",
  "hooks": "./claude-hooks/hooks.json",
  "license": "Apache-2.0"
}
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. yesterday First seen · 12 lines scan A 30c4b67470d5

Subscribe to this mod's changes

codex-advisor is a plugin published in the GitHub repository fcakyon/claude-codex-settings (1,114 stars, last pushed 2d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.