skill-health

skill-health is a command for Claude Code from felvieira/claude-skills-fv. It costs 28 tokens per session (558 once invoked), scanned A, original, Apache-2.0.

A command that generates a health dashboard for a collection of coding-agent skills. It checks description quality, activation triggers, test coverage, detection accuracy, and overlapping skills.

In plain words
What is it for?
Use it before a release or during regular maintenance to review the portfolio, find weak descriptions and triggers, identify missing evaluation fixtures, inspect low accuracy, and detect overlaps.
Why use it?
It reveals why skills may fail to activate, activate too often, or duplicate one another. The report turns those problems into concrete areas for maintenance.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions subagents.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node scripts/skill-health.mjs.

Part of the dev-team-kit-fv plugin — 72 skills, 45 commands, 16 agents, 5 hooks shipped together

Good fit Use it before a release or during regular maintenance to review the portfolio, find weak descriptions and triggers, identify missing evaluation fixtures, inspect low accuracy, and detect overlaps.

Compare 6 commands from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/felvieira/claude-skills-fv
agentmods
npx agentmods add commands/felvieira/claude-skills-fv/skill-health

Made for: Claude Code.

Or install dev-team-kit-fv, the plugin that ships this one along with the rest of its 72 skills, 45 commands, 16 agents, 5 hooks.

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-health

README.md
[![agentmods](https://agentmods.dev/badge/commands/felvieira/claude-skills-fv/skill-health/github.svg)](https://agentmods.dev/commands/felvieira/claude-skills-fv/skill-health)
Your own site
<a href="https://agentmods.dev/commands/felvieira/claude-skills-fv/skill-health"><img src="https://agentmods.dev/badge/commands/felvieira/claude-skills-fv/skill-health/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-health

Your own site · 80×15
<a href="https://agentmods.dev/commands/felvieira/claude-skills-fv/skill-health"><img src="https://agentmods.dev/badge/commands/felvieira/claude-skills-fv/skill-health.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 558 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 $0.00028 $0.00558
Opus 5 $0.00014 $0.00279
Sonnet 5 $0.00006 $0.00112
Haiku 4.5 $0.00003 $0.00056

Measured 12d ago against content hash eb599cd3e3ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

skill-health 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 12d 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.

commands/skill-health.md · 49 lines

What it actually says

/skill-health — Dashboard do Portfolio de Skills

Objetivo: Gerar visão agregada do portfolio (42+ skills, 15+ subagents, 33+ commands) com flags de saúde:

  • description curtas (<80 chars) — provavelmente não disparam bem
  • skills sem "Trigger em:" explícito no description
  • skills sem fixture em evals/triggers/ (cobertura de detecção)
  • skills com eval accuracy <70% (gatilho fraco ou overlap)
  • triggers compartilhados entre skills (overlap → revisar)

Quando usar:

  • antes de release menor (v2.X.0) — checar saúde geral
  • ao notar skills "que não disparam quando deviam" — confirmar via accuracy
  • como input pra skill 35 (skill-author) decidir o que refinar
  • mensalmente como hygiene routine

Quando NÃO usar:

  • portfolio menor que ~10 skills — overhead não compensa
  • após editar 1 skill isoladamente (rode eval-triggers.mjs direto)

Inputs:

  • --out=docs/skill-health.md (default)

Output: docs/skill-health.md regenerado com:

  • sumário (counts)
  • 5 flags (curtas, sem triggers, sem evals, low accuracy, overlaps)
  • top 10 skills por description quality
  • ações sugeridas (links pra /humanize, skill 35, eval-triggers)

Comando real:

node scripts/skill-health.mjs
# saída: docs/skill-health.md

Encaixe:

  • skill 35 (skill-author) consome o report pra priorizar refactors
  • /humanize reescreve descriptions fracas detectadas
  • scripts/eval-triggers.mjs (v2.12.1) gera as fixtures que esta skill consome
  • policies/skill-manifest.md define o formato canônico que a saúde mede

Adaptado de: ECC /skill-health (MIT). Nosso ganho: integração direta com evals/triggers/*.jsonl (já existente desde v2.12.1) e detecção de overlap nativa.

Cross-refs: skill 35 (skill-author), /humanize, scripts/eval-triggers.mjs, policies/skill-manifest.md.

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. 12d ago First seen · 49 lines · 28 tokens per session scan A eb599cd3e3ff

Subscribe to this mod's changes

skill-health is a command published in the GitHub repository felvieira/claude-skills-fv (23 stars, last pushed today), licensed Apache-2.0. It adds 28 tokens to every session and 558 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 2026-08-30.