aguara: Instructions file for Codex

AGENTS.md

aguara AGENTS.md is an instructions file for Codex, OpenCode from garagon/aguara. It costs 1,683 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for Aguara, an offline static security scanner for AI-agent skills and MCP configurations. A static scanner checks files without running them; MCP is a standard way for tools and agents to exchange requests and results.

In plain words
What is it for?
Use them to scan files or directories, run security checks in continuous integration, produce JSON results, list rules, or call the scanner from Go code.
Why use it?
They help contributors scan agent-related files for risks such as prompt injection, data exfiltration, or credential problems before use or release.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is garagon/aguara's own configuration. It tells Codex and OpenCode how to work on aguara itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything aguara configures →

Reuse

Borrowing it

Nothing to install: this file belongs to garagon/aguara. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/garagon/aguara/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/garagon/aguara

Made for: Codex, OpenCode.

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 aguara AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/garagon/aguara/agents-md/github.svg)](https://agentmods.dev/instructions/garagon/aguara/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/garagon/aguara/agents-md"><img src="https://agentmods.dev/badge/instructions/garagon/aguara/agents-md/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 aguara AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/garagon/aguara/agents-md"><img src="https://agentmods.dev/badge/instructions/garagon/aguara/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,683 This file is loaded in full into every session.
When invoked 1,683 The same file — it is already loaded in full.
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 $0.01683 $0.01683
Opus 5.5 $0.00673 $0.00673
Sonnet 5.5 $0.00337 $0.00337
Haiku 4.5 $0.00168 $0.00168

Measured 1mo ago against content hash 85b2e7db9c47, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

aguara AGENTS.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 1mo 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.

AGENTS.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Aguara: Reference for Contributors and AI Agents

Aguara is an open-source security engine for AI agent and supply-chain trust. It inspects skills, agent configuration, code, automation and dependencies before they are trusted or executed. Scans are static and deterministic: they do not execute inspected packages, call an LLM, or send telemetry.

This file describes the source checkout, not necessarily the published release. Check aguara version, development coverage and unreleased changes before claiming a feature ships. The installed binary's catalog is authoritative for that binary.

Choose the Entry Point

Task Command
Inspect skills, code or agent configuration aguara scan ./skills/ --project-policy ignore
Check dependencies against malicious-package intelligence aguara check .
Combine content and dependency checks aguara audit .
Produce machine-readable audit results aguara audit . --format json
Gate a change in CI aguara audit . --ci
Inspect the installed catalog aguara list-rules --format json
Understand a detection aguara explain SC-EX-007
Refresh signed advisory data aguara update

Default scans use embedded or available local intelligence offline. update and explicit freshness options fetch data; those operations are not offline. check detects known malicious packages, not comprehensive CVE/SCA coverage. See package coverage for evidence and version-matching limits.

Trust Boundary

From v0.28.0, audit and CI scans ignore target-owned policy by default. A local scan can still trust it. Use --project-policy ignore when inspecting unfamiliar content. The public Go scanning APIs ignore target-owned .aguaraignore and inline suppression directives by default. WithTrustedTargetPolicy() opts in when the caller owns that policy.

Older binaries may honor repository-owned exclusions. Check the version before relying on this boundary. Caller-supplied exclusions, overrides and custom rules also affect coverage.

Read the full file on GitHub · 163 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. 1mo ago Changed · -140 lines · -1,086 tokens per session scan B → A 85b2e7db9c47
  2. 1mo ago First seen · 303 lines · 2,769 tokens per session scan B 24e867ef7b42

Subscribe to this mod's changes

aguara AGENTS.md is an instructions file published in the GitHub repository garagon/aguara (94 stars, last pushed 8d ago), licensed Apache-2.0. It adds 1,683 tokens to every session, about $0.0067 per session on Opus 5.5. 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.

Related

Other instructions, from other repositories

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,786 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,731 tokens

deno copilot-instructions.md

Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.

denoland/deno · 3,077 tokens