skill-authoring-review

skill-authoring-review is a skill for Claude Code, Codex from stark-ai-de/agent-skills. It costs 60 tokens per session (752 once invoked), scanned A, original, Apache-2.0.

A guide and review process for creating Agent Skills, which are reusable instructions that tell coding agents when and how to perform a task.

In plain words
What is it for?
Use it to write or review a skill’s metadata, instructions, supporting files, safety rules, and installation checks.
Why use it?
It helps make skills easier for agents to find, understand, install, and use consistently.

Skill for Claude CodeCodex

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

Good fit Use it to write or review a skill’s metadata, instructions, supporting files, safety rules, and installation checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/stark-ai-de/agent-skills/skill-authoring-review
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 stark-ai-de/agent-skills --skill skill-authoring-review
Clone the repo
git clone --depth 1 https://github.com/stark-ai-de/agent-skills

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-review

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/stark-ai-de/agent-skills/skill-authoring-review"><img src="https://agentmods.dev/badge/skills/stark-ai-de/agent-skills/skill-authoring-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 752 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 $0.00060 $0.00752
Opus 5 $0.00030 $0.00376
Sonnet 5 $0.00012 $0.00150
Haiku 4.5 $0.00006 $0.00075

Measured 11d ago against content hash 2a07b1b0831e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

skill-authoring-review 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 11d 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.

incubator/skills/skill-maintenance/skill-authoring-review/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Authoring Review

Goal

Create or review an Agent Skill so another agent can use it reliably with minimal context, clear routing, safe bundled resources, and a concrete output contract.

When to use

  • The user asks to create, rewrite, or review a skill.
  • A public skill repository needs an installability or quality check.
  • A skill has vague triggers, oversized instructions, unsafe scripts, or missing artifacts.

When not to use

  • The user is asking to execute a domain workflow that an existing skill already covers.
  • The task is ordinary repository review with no skill authoring surface.
  • The user only needs installation help; use skill-installation-support.

Inputs to inspect

  • SKILL.md frontmatter and body.
  • references/, scripts/, assets/, and agents/ folders.
  • README catalog entries and install commands when reviewing a repo.
  • Validation output from npm run validate or an equivalent checker.

Review rubric

Check that name matches the folder, uses lowercase hyphen-case, and appears with a clear description. The description must front-load trigger words because it is the routing surface. The body should state goal, scope, workflow, safety rules, output format, completion criteria, and failure modes.

Read references/skill-quality-rubric.md when doing a scored review. Read references/frontmatter-examples.md when rewriting descriptions.

Workflow

  1. Inspect the skill path and identify the intended workflow.
  2. Validate frontmatter syntax, name matching, and description routing quality.
  3. Check progressive disclosure: keep core steps in SKILL.md and move long examples or rubrics into references.
  4. Review scripts for deterministic behavior, clear documentation, and safe defaults.
  5. Verify output artifacts are concrete enough for a future agent to act on.
  6. Run available validation commands when working in a repository.
  7. Return blocking issues first, followed by improvements and a concise rewrite plan.

Read the full file on GitHub · 93 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. 11d ago First seen · 93 lines · 60 tokens per session scan A 2a07b1b0831e

Subscribe to this mod's changes

skill-authoring-review is a skill published in the GitHub repository stark-ai-de/agent-skills (5 stars, last pushed yesterday), licensed Apache-2.0. It adds 60 tokens to every session and 752 once invoked, about $0.0003 per session on Opus 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.