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.
npx skills add andregusman-raiz/a-gusman-claude --skill ag-auditar-harnessgit clone --depth 1 https://github.com/andregusman-raiz/a-gusman-claudeWrote 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.
[](https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-auditar-harness)<a href="https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-auditar-harness"><img src="https://agentmods.dev/badge/skills/andregusman-raiz/a-gusman-claude/ag-auditar-harness/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.
<a href="https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-auditar-harness"><img src="https://agentmods.dev/badge/skills/andregusman-raiz/a-gusman-claude/ag-auditar-harness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00056 | $0.01995 |
| Opus 5.5 | $0.00022 | $0.00798 |
| Sonnet 5.5 | $0.00011 | $0.00399 |
| Haiku 4.5 | $0.00006 | $0.00199 |
Grade B, and why
ag-auditar-harness scanned grade B with 2 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.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
| Hook que `curl | sh` URLs nao-fixas | P0 | `curl $URL | sh` | Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| Hook que `curl | sh` URLs nao-fixas | P0 | `curl $URL | sh` | How it starts
The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ag-auditar-harness — Auditor do harness
Equivalente local ao AgentShield do ECC, focado nos pontos fracos especificos do sistema rAIz: drift de skills, hooks bloqueantes sem bypass documentado, redundancia semantica entre skills, machines sem score, MCPs com baixo ROI.
Quando invocar
- Trimestral via
ag-curador-skills - Sob demanda:
/ag-auditar-harness - Como dimensao HARNESS de
/ag-9-auditar --include-harness - Apos qualquer adicao de >3 skills novas (gate manual)
Output
Relatorio em ~/Claude/docs/diagnosticos/harness-audit-YYYY-MM-DD.md com:
- HCS total (0-100) — media ponderada dos 5 sub-scores
- Sub-scores (cada um 0-100) — drift, injection, redundancy, dod_violation, mcp_cost
- Findings P0/P1/P2 — path + linha + fix sugerido
- Quick wins (se
--apply-quick-wins) — PR atomico com fixes triviais
HCS — formula
HCS = (
HCS_drift * 0.25 +
HCS_injection * 0.30 + # peso maior — security first
HCS_redundancy * 0.15 +
HCS_dod * 0.20 +
HCS_mcp_cost * 0.10
)
Convergencia: HCS >= 80 = passa. HCS < 60 = bloqueio P0.
Sub-auditores
1. HCS.drift — Skills cujo description nao bate com conteudo
Detecta: descricao de skill (frontmatter description:) divergente do corpo do SKILL.md.
Metodo:
- Para cada
~/Claude/.claude/skills/*/SKILL.md:- Extrai frontmatter
description - Extrai primeiro paragrafo de prosa (apos
# titulo) - Compara via:
- Levenshtein normalizado (rapido, primeiro filtro)
- Embedding cosine (sentence-transformers/all-MiniLM-L6-v2) se disponivel localmente
- Extrai frontmatter
- Score por skill = max(0, 100 - 100 * (1 - similaridade))
- HCS.drift = mean(scores) onde score < 70 conta como finding P1
Heuristica fallback (sem embedding): keywords sobreposicao tf-idf simples via stdlib Python.
Fix sugerido: reescrever description OU atualizar corpo para refletir capacidade real.
2. HCS.injection — Hooks/skills com risco de injection
Detecta:
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.
- 2mo ago First seen · 199 lines · 56 tokens per session scan B 39405eaf6ded
ag-auditar-harness is a skill published in the GitHub repository andregusman-raiz/a-gusman-claude (18 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 1,995 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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