oma-skill-creator

oma-skill-creator is a skill for Codex from gracefullight/docusaurus-plugins. It costs 72 tokens per session (2,199 once invoked), scanned A, a copy of oma-skill-creator, MIT.

A skill-authoring tool for creating or updating OMA skills, which are instructions that guide coding agents through specific tasks.

In plain words
What is it for?
It helps create skill files, convert existing skills to the SSL-lite format, and check whether a skill has enough workflow detail.
Why use it?
It helps keep these agent instructions consistent, complete, and usable for routing, execution, validation, and recovery.

Skill for Codex

Written for Codex: reads $CODEX_HOME. Also seen: installed under .agents/ (shared by several agents); mentions Codex.

Good fit It helps create skill files, convert existing skills to the SSL-lite format, and check whether a skill has enough workflow detail.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gracefullight/docusaurus-plugins/oma-skill-creator
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 gracefullight/docusaurus-plugins --skill oma-skill-creator
Clone the repo
git clone --depth 1 https://github.com/gracefullight/docusaurus-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 oma-skill-creator

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/gracefullight/docusaurus-plugins/oma-skill-creator"><img src="https://agentmods.dev/badge/skills/gracefullight/docusaurus-plugins/oma-skill-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,199 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.
Origin 91% copy Near-identical to another mod 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 $0.00072 $0.02199
Opus 5.5 $0.00029 $0.00880
Sonnet 5.5 $0.00014 $0.00440
Haiku 4.5 $0.00007 $0.00220

Measured 1mo ago against content hash 0d6e68855867, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

oma-skill-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 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.

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.

Origin

This is a copy

91% identical to oma-skill-creator — 9 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/oma-skill-creator/SKILL.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Creator - SSL-lite Skill Authoring Specialist

Scheduling

Goal

Create, revise, and validate OMA skills using the SSL-lite Markdown structure derived from Scheduling-Structural-Logical skill representation while keeping the result readable, executable, and maintainable.

Intent signature

  • User asks to create a new OMA skill, agent skill, specialist skill, or .agents/skills/*/SKILL.md.
  • User asks to convert or normalize a skill into the project skill format.
  • User asks whether a skill has enough scheduling, structural, logical, reference, or canonical execution detail.
  • User mentions SSL-lite, Scheduling / Structural / Logical, skill format, skill template, or skill creator.

When to use

  • Creating a new skill under .agents/skills/{name}/SKILL.md
  • Updating an existing OMA skill to the SSL-lite format
  • Adding Canonical command path or Canonical workflow path to an execution-heavy skill
  • Auditing whether a skill is usable by routing, execution, validation, and recovery logic
  • Deciding whether detailed examples belong inline or in resources/

When NOT to use

  • Installing third-party skills into $CODEX_HOME/skills -> use Codex's built-in skill installer (external; not an OMA skill)
  • Creating a Codex plugin bundle -> use Codex's plugin tooling (external; not an OMA skill)
  • Writing a general project plan unrelated to skill authoring -> use PM Agent
  • Editing product code, infrastructure, frontend, backend, or mobile implementation directly -> use the matching specialist skill

Expected inputs

  • skill_name: target directory name, preferably oma-{domain}
  • skill_goal: capability the skill should add
  • trigger_intents: user prompts or domains that should activate the skill
  • boundaries: when the skill should not be used and which skill should handle those cases
  • execution_model: whether the skill is command-heavy, workflow-heavy, judgment-heavy, or reference-heavy
  • Existing files, tools, commands, resources, or standards the skill must preserve

Read the full file on GitHub · 165 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.

  1. 1mo ago First seen · 165 lines · 72 tokens per session scan A 0d6e68855867

Subscribe to this mod's changes

oma-skill-creator is a skill published in the GitHub repository gracefullight/docusaurus-plugins (23 stars, last pushed 27d ago), licensed MIT. It adds 72 tokens to every session and 2,199 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 91% identical to oma-skill-creator, differing in 9 lines, and is treated as a copy.

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