agentmods.dev

agentguard CLAUDE.md

Maintenance instructions for agentguard, a read-only security review and design skill for applications that use AI agents, tool calls, memory, MCP, or multiple agents.

In plain words
What is it for?
Use it when updating agentguard's OWASP and CWE references, audit behavior, scripts, or design guidance.
Why use it?
It helps maintain the project's security guidance and preserve its required frameworks, language rules, and non-destructive behavior.

Instructions file

2 1mo ago A scan 982 tokens original MIT
View the source file Ethonik/agentguard
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 instructions/ethonik/agentguard/claude-md
Clone the repo
git clone --depth 1 https://github.com/Ethonik/agentguard
Per session 982 This file is loaded in full into every session.
When invoked 982 The same file — it is already loaded in full.
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 $0.00982 $0.00982
Opus 5 $0.00491 $0.00491
Sonnet 5 $0.00196 $0.00196
Haiku 4.5 $0.00098 $0.00098

Measured 2d ago against content hash 9ba9d331673b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agentguard CLAUDE.md 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 2d 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.

CLAUDE.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — Guía de mantenimiento de agentguard

Contexto para cualquier agente (o persona) que edite este repositorio.

Qué es

Skill de Claude Code para seguridad de aplicaciones agénticas (código que usa LLMs, tool-calling, memoria, MCP o multi-agente). Dos modos: auditoría (review) y asesoría de diseño (design). El conocimiento de seguridad vive en skills/agentguard/references/ y se ancla a tres marcos: OWASP Top 10 for Agentic Applications 2026 (ASI01–ASI10), OWASP Top 10 for LLM Applications 2025 (LLM01–LLM10) y CWE (MITRE) — clase de debilidad y mitigaciones por hallazgo, incl. los CWE de IA generativa CWE-1427 y CWE-1426.

Principios de diseño (no romper)

  1. Read-only sobre el proyecto objetivo. El skill nunca modifica el código que audita; solo escribe su archivo de informe.
  2. Scripts = Python 3 stdlib únicamente, cero dependencias. Deben correr con python3 a secas. Nada de pip install. Nunca ejecutan (exec/import) código del target: solo lo leen como texto.
  3. Bilingüe. Explicaciones en español; IDs, términos técnicos y nombres OWASP en inglés (ASI01, prompt injection, human-in-the-loop, ...).
  4. Cada hallazgo se mapea a un ID OWASP (ASI0x y/o LLM0x) y a un CWE cuando exista, y trae remediación accionable, no solo la descripción del riesgo. Si un fallo es puramente agéntico y CWE no tiene categoría nativa (goal hijack, memory poisoning, behavioral drift), se reporta solo con el ID ASI — no forzar un CWE que no aplica.
  5. Uso defensivo/autorizado. El skill sirve para asegurar sistemas propios o con autorización. No produce exploits ni técnicas ofensivas.

Estructura

Motor (agnóstico, fuente de verdad del conocimiento):

  • skills/agentguard/SKILL.md — orquestador enriquecido para Claude Code (modos + pipeline).
  • skills/agentguard/scripts/ — detect_stack.py y scan_agentic_patterns.py.
  • skills/agentguard/references/ — base de conocimiento por dominio + plantillas.

Read the full file on GitHub · 61 lines

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. 2d ago First seen · 61 lines · 982 tokens per session scan A 9ba9d331673b

Subscribe to this mod's changes

agentguard CLAUDE.md is an instructions file published in the GitHub repository Ethonik/agentguard (2 stars, last pushed 1mo ago), licensed MIT. It adds 982 tokens to every session, about $0.0049 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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