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skill-authoring

skill-authoring is a skill for Claude Code, Codex from woliveiras/geremmyas. It costs 46 tokens per session (286 once invoked), scanned A, original, MIT.

A guide for creating or revising coding-assistant skills, which are reusable instructions that tell an assistant when and how to handle a type of task.

In plain words
What is it for?
Use it when writing, renaming, reviewing, or documenting a skill and updating the references that point to it.
Why use it?
It helps skills stay easy to find, focused, portable, and consistent with the repository's structure and conventions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 10repo 3mo ago A scan 46 tokens original MIT

Good fit Use it when writing, renaming, reviewing, or documenting a skill and updating the references that point to it.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/woliveiras/geremmyas/skill-authoring
View source ↗ woliveiras/geremmyas
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 woliveiras/geremmyas --skill skill-authoring
Clone the repo
git clone --depth 1 https://github.com/woliveiras/geremmyas

Made for: Claude Code, 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 skill-authoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/woliveiras/geremmyas/skill-authoring/github.svg)](https://agentmods.dev/skills/woliveiras/geremmyas/skill-authoring)
Your own site
<a href="https://agentmods.dev/skills/woliveiras/geremmyas/skill-authoring"><img src="https://agentmods.dev/badge/skills/woliveiras/geremmyas/skill-authoring/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 skill-authoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/woliveiras/geremmyas/skill-authoring"><img src="https://agentmods.dev/badge/skills/woliveiras/geremmyas/skill-authoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 286 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 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00046 $0.00286
Opus 5.5 $0.00018 $0.00114
Sonnet 5.5 $0.00009 $0.00057
Haiku 4.5 $0.00005 $0.00029

Measured 2mo ago against content hash 45546282a000, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-authoring 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.

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.

content/skills/skill-authoring/SKILL.md · 35 lines

What it actually says

Skill Authoring

Create portable skills that are small, discoverable, and usable by the assistants Geremmyas supports.

Process

  1. Define the skill's job and trigger phrases.
  2. Choose an action-oriented name in clear English.
  3. Write SKILL.md with:
    • frontmatter name
    • frontmatter description
    • short process
    • rules
    • output expectations when useful
  4. Move long examples, templates, tables, or rarely needed details to assets/ or references/.
  5. Update README, prompts, agents, instructions, and installer references when a skill is added or renamed.

Checklist

  • The directory name and name: match.
  • The description says what the skill does and when to use it.
  • The skill is a workflow or capability, not a passive document title.
  • SKILL.md is short enough to load into context comfortably.
  • Examples are concrete and reusable.
  • The skill is assistant-neutral unless a target-specific constraint is explicit.
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 · 35 lines · 46 tokens per session scan A 45546282a000

Subscribe to this mod's changes

skill-authoring is a skill published in the GitHub repository woliveiras/geremmyas (10 stars, last pushed 3mo ago), licensed MIT. It adds 46 tokens to every session and 286 once invoked, about $0.0002 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 2026-08-31.

Building agents
Related

skill-authoring compared with skills from other repositories

skill-authoring next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
skill-authoringwoliveiras/geremmyasSkill103mo agoMITA46Claude Code, Codex
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.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code