plugins: Skill for Codex

.agents/skills/plugin-creator/SKILL.md

plugin-creator is a skill for Codex from openai/plugins. It costs 79 tokens per session (1,715 once invoked), scanned A, original, no licence file.

A tool for creating the folder and starter files required for a Codex plugin, including its plugin manifest.

In plain words
What is it for?
It helps scaffold personal plugins, add optional folders and placeholder files, and prepare plugins for testing or publishing.
Why use it?
It removes the need to remember the required plugin structure when starting or updating a plugin.

Skill for Codex ✓ vendor

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is openai/plugins's own configuration. It tells Codex how to work on plugins 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 plugins configures →

Reuse

Borrowing it

Nothing to install: this file belongs to openai/plugins. 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/openai/plugins/main/.agents/skills/plugin-creator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/openai/plugins

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.

agentmods badge for plugin-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/openai/plugins/plugin-creator/github.svg)](https://agentmods.dev/skills/openai/plugins/plugin-creator)
Your own site
<a href="https://agentmods.dev/skills/openai/plugins/plugin-creator"><img src="https://agentmods.dev/badge/skills/openai/plugins/plugin-creator/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 plugin-creator

Your own site · 80×15
<a href="https://agentmods.dev/skills/openai/plugins/plugin-creator"><img src="https://agentmods.dev/badge/skills/openai/plugins/plugin-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,715 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 medium

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 →

  • medium Rogue Agent · line 3
    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 $0.00079 $0.01715
Opus 5.5 $0.00032 $0.00686
Sonnet 5.5 $0.00016 $0.00343
Haiku 4.5 $0.00008 $0.00171

Measured 2mo ago against content hash d08b48a7ba8a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

plugin-creator 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/create_basic_plugin.py), 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.

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.

.agents/skills/plugin-creator/SKILL.md · 179 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 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.

  1. 2mo ago First seen · 179 lines · 79 tokens per session scan A d08b48a7ba8a

Subscribe to this mod's changes

plugin-creator is a skill published in the GitHub repository openai/plugins (7,777 stars, last pushed 3d ago), with no licence file. It adds 79 tokens to every session and 1,715 once invoked, about $0.0003 per session on Opus 5.5. 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.

Related

plugin-creator compared with skills from other repositories

plugin-creator next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
plugin-creatoropenai/pluginsSkill7.8k3d agononeA79Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143ktodayMITA103Claude Code