valid-skill

valid-skill is a skill for Claude Code, Codex from tcarac/skill-doctor. It costs 11 tokens per session (35 once invoked), scanned A, original, Apache-2.0.

A valid skill fixture used alongside invalid test cases.

In plain words
What is it for?
Testing mixed valid and invalid skill collections.
Why use it?
It helps check that validation distinguishes acceptable skills from rejected ones.

Skill for Claude CodeCodex

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

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/tcarac/skill-doctor/valid-skill
Any agent
npx skills add tcarac/skill-doctor --skill valid-skill
Clone the repo
git clone --depth 1 https://github.com/tcarac/skill-doctor

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 valid-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/tcarac/skill-doctor/valid-skill.svg)](https://agentmods.dev/skills/tcarac/skill-doctor/valid-skill)
Your own site
<a href="https://agentmods.dev/skills/tcarac/skill-doctor/valid-skill"><img src="https://agentmods.dev/badge/skills/tcarac/skill-doctor/valid-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 35 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00011 $0.00035
Opus 5 $0.00005 $0.00017
Sonnet 5 $0.00002 $0.00007
Haiku 4.5 $0.00001 $0.00003

Measured 6d ago against content hash 90df764f8ddf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

valid-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.

tests/fixtures/multiple-skills/mixed-valid-invalid/valid-skill/SKILL.md · 9 lines

What it actually says

Valid Skill

This is a valid skill among invalid ones for testing mixed validation.

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. 6d ago First seen · 9 lines · 11 tokens per session scan A 90df764f8ddf

Subscribe to this mod's changes

valid-skill is a skill published in the GitHub repository tcarac/skill-doctor (4 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 11 tokens to every session and 35 once invoked, about $0.0001 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.

Related

Other skills, from other repositories

skill-vetter-runtime

Review ClawHub or local Skill packages before installation, classify risk, and return a structured security report.

uvwt/agentdock · 26 tokens

gateway

Start and manage the Kurtosis gateway for Kubernetes. The gateway forwards local ports to the Kurtosis engine and services running in a k8s cluster. Required when using Kurtosis with Kubernetes. Use when kurtosis engine status shows nothing on k8s or services aren't reachable.

kurtosis-tech/kurtosis · 57 tokens

brooks-sweep

Full-sweep mode: runs a unified analysis across all quality dimensions — code decay, architecture, tech debt, and test quality — then applies fixes directly to the codebase. Safe changes are auto-applied; risky changes are confirmed before execution. Drawing on twelve classic engineering books. Triggers when: user…

hyhmrright/brooks-lint · 178 tokens

ring:mapping-feature-relationships

Mapping how features relate and phasing the work: categorizing PRD features, grouping them into domains, charting cross-feature journeys, dependencies, and integration points, and defining the binding Phases that plan.md mirrors one-to-one at Gate 7. Gate 2 of ring:planning-large-features; runs after…

LerianStudio/ring · 104 tokens

bestie-features

Add BestieTemplate features (AGENTS.md, changelog, dependabot, pre-commit, lint workflow, testitem runner) to a Julia package with the bestie CLI — no Julia needed. Use when asked to add one of these files/setups to a package, or to see what BestieTemplate can add.

JuliaBesties/BestieTemplate.jl · 71 tokens

laravel-owasp-security

OWASP Top 10 security audit and secure coding guidelines for Laravel + React/Inertia.js applications. Use when auditing for vulnerabilities ("run OWASP audit", "security review", "check my app security") or writing secure Laravel code involving auth, payments, file uploads, or API design. Triggers on security-related…

AsyrafHussin/agent-skills · 87 tokens