A valid example skill used by validator tests. It represents the expected successful case for frontmatter validation.

Use it as a fixture when testing the validator's normal success path.

It gives the validator a known-good input so tests can distinguish valid skill files from invalid ones.

good-skill — Skill for Claude Code by meteor: A valid example skill used by validator tests.

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.

agentmods

npx agentmods add skills/meteor/agent-skills/good-skill

Any agent

npx skills add meteor/agent-skills --skill good-skill

Clone the repo

git clone --depth 1 https://github.com/meteor/agent-skills

Made for: Claude Code.

Or install meteor, the plugin that ships this one along with the rest of its 28 skills.

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/meteor/agent-skills/good-skill.svg)](https://agentmods.dev/skills/meteor/agent-skills/good-skill)

Your own site

<a href="https://agentmods.dev/skills/meteor/agent-skills/good-skill"><img src="https://agentmods.dev/badge/skills/meteor/agent-skills/good-skill.svg" alt="Measured on agentmods" height="20"></a>

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 108 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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	$0.00035	$0.00108
Opus 5	$0.00017	$0.00054
Sonnet 5	$0.00007	$0.00022
Haiku 4.5	$0.00003	$0.00011

Measured 6d ago against content hash 408d23daba4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

good-skill 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 6d 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.

test/fixtures/valid/good-skill/SKILL.md · 19 lines

What it actually says

Good skill

This is a valid fixture used by the validator unit tests.

Files

What ships with it

1 file 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.

references/eval-cases.md 115 B

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.

6d ago First seen · 19 lines · 35 tokens per session scan A 408d23daba4a

Subscribe to this mod's changes

good-skill is a skill published in the GitHub repository meteor/agent-skills (7 stars, last pushed 2d ago), licensed MIT. It adds 35 tokens to every session and 108 once invoked, about $0.0002 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.

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