A runner for launching Codex CLI tasks, generating images, and coordinating several coding-agent jobs at once. A fleet is a group of parallel workers handling separate tasks.

Use it for code reviews, refactors, analysis, image generation, or parallel multi-step coding tasks.

It turns these jobs into an executable workflow and can isolate simultaneous code changes in separate worktrees.

codex-fleet — Skill for Codex by avenoxai/avenoxskills

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/avenoxai/avenoxskills

agentmods

npx agentmods add skills/avenoxai/avenoxskills/codex-fleet

Made for: 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/avenoxai/avenoxskills/codex-fleet/github.svg)](https://agentmods.dev/skills/avenoxai/avenoxskills/codex-fleet)

Your own site

<a href="https://agentmods.dev/skills/avenoxai/avenoxskills/codex-fleet"><img src="https://agentmods.dev/badge/skills/avenoxai/avenoxskills/codex-fleet/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/avenoxai/avenoxskills/codex-fleet"><img src="https://agentmods.dev/badge/skills/avenoxai/avenoxskills/codex-fleet.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 10,321 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.

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	$0.00000	$0.10321
Opus 5.5	$0.00000	$0.04128
Sonnet 5.5	$0.00000	$0.02064
Haiku 4.5	$0.00000	$0.01032

Measured 1mo ago against content hash 2839ae72c51f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

codex-fleet 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/Invoke-KeepAwake.ps1, scripts/Resize-Image.ps1), 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.

find ~/.codex/generated_images -type f -name '*.png' -mmin -5

skills/codex-fleet/SKILL.md · 640 lines

How it starts

The opening of the file, as written. The whole thing — 640 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex Fleet — Standalone Action Runner

A single self-contained skill for driving the Codex CLI from any agent (Claude Code, Cursor, or your own harness). No external control plane required — everything here runs against a plain local codex install. Drop this file into .claude/skills/codex-fleet/SKILL.md (or your agent's skills dir) and go.

Built and battle-tested by Avenox. Share freely.

This skill does three things and ALWAYS executes them, never describes them:

General Codex CLI tasks — code review, refactor, multi-file edits, analysis, diagnosis, anything you'd hand to a peer-AI for parallel processing.
Image generation — real rendered images via Codex's built-in gpt-image-2 tool: backgrounds, portraits, icons, sigils, banners, UI assets, sprites, mockups, photoreal, infographics.
Fleets — spawning many codex exec delegates in parallel (one lane or twenty), with worktree isolation for concurrent write lanes.

CRITICAL: This is an ACTION skill, not commentary

When invoked you MUST:

Actually invoke codex exec via the Bash tool. Never write instructions for the user to run themselves.
Default to background execution (run_in_background: true) for any task likely to take >10s. This lets the main agent continue other work in parallel while Codex runs. The harness notifies on completion.
For multiple independent jobs, fire them ALL in parallel. Codex sessions don't contend. Compute is not the bottleneck — throughput is. If the user asks for 4 images or 3 codex investigations, that's 4 or 3 simultaneous Bash calls in one message, all run_in_background: true.
Summarize results from logs after each background job completes — don't dump raw stdout unless asked.

If the user's request is "use codex to X" or "run codex on X", run codex exec ... "X". Don't wrap, don't paraphrase, don't ask "should I proceed" — just go.

Prerequisites

Codex CLI installed and authenticated (codex --version). Reasoning tiers low/medium/high/xhigh need 0.128+; max and ultra need gpt-6-astra and a current CLI (0.144+ is known good).
For the image-gen CLI fallback and gpt-image-1.5 transparency path only: OPENAI_API_KEY. The built-in image_gen tool uses your Codex subscription and needs no key.

Read the full file on GitHub · 640 lines

Files

What ships with it

2 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.

1mo ago Changed · +10 lines 2839ae72c51f
1mo ago Changed · +34 lines a15fca3c203a
1mo ago Changed 205ef9bd2be9
2mo ago First seen · 596 lines · 0 tokens per session scan B a2dd35693afc

Subscribe to this mod's changes

codex-fleet is a skill published in the GitHub repository avenoxai/avenoxskills (112 stars, last pushed 19d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 10,321 tokens. 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.

Building agents Claude Code Creative and media agent-skills ai-agents claude codex llm-tools

codex-fleet next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codex-fleetavenoxai/avenoxskills	Skill	112	19d ago	MIT	B	0	Codex
wiki-context-packAr9av/obsidian-wiki	Skill	3.7k	yesterday	MIT	A	63	Claude Code
security-reviewwaybarrios/opencode-power-pack	Skill	551	4d ago	MIT	A	64	Claude Code
feature-devwaybarrios/opencode-power-pack	Skill	551	4d ago	MIT	A	62	Claude Code
huggingface-llm-trainerwaybarrios/opencode-power-pack	Skill	551	4d ago	MIT	A	65	Claude Code
semgrep-rule-variant-creatorwaybarrios/opencode-power-pack	Skill	551	4d ago	MIT	A	50	Claude Code
wordpress-com-webhookshookdeck/webhook-skills	Skill	98	yesterday	MIT	A	160	Claude Code, Codex

codex-fleet