Borrowing it
Nothing to install: this file belongs to mentu-ai/mentu-navigator. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mentu-ai/mentu-navigator/main/AGENTS.mdgit clone --depth 1 https://github.com/mentu-ai/mentu-navigatorWrote 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/instructions/mentu-ai/mentu-navigator/agents-md)<a href="https://agentmods.dev/instructions/mentu-ai/mentu-navigator/agents-md"><img src="https://agentmods.dev/badge/instructions/mentu-ai/mentu-navigator/agents-md.svg" alt="Measured on agentmods" 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 | $0.00439 | $0.00439 |
| Opus 5 | $0.00219 | $0.00219 |
| Sonnet 5 | $0.00088 | $0.00088 |
| Haiku 4.5 | $0.00044 | $0.00044 |
Grade A, and why
mentu-navigator 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 7d 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.
What it actually says
AGENTS
Durable operating contract for mentu-navigator.
Purpose
mentu-navigator turns a repository into a small, evidence-backed navigation surface for humans and agents. It helps answer:
- What is here?
- Where is the relevant implementation or contract?
- What surrounds a symbol?
- What may be affected by a change?
Safety contract
- Navigation is read-only. Do not mutate a target repository.
- Treat every result as a candidate backed by source evidence, not as authority.
- Respect the target repository's nearest
AGENTS.mdandCLAUDE.md. - Never read or return known secret-bearing paths such as
.env*, private keys, credential files, secret folders, or historical.mentuevidence. - Do not follow symlinks while walking a target repository.
- Bound file counts, file sizes, result counts, subprocess time, and output snippets.
- Preserve provenance: repository root, Git head, strategy, path, line, category, score, and reason.
- An explicit future indexing command may write only to an external cache. Automatic or hidden indexing is out of scope.
Product surfaces
- CLI:
mentu-nav - MCP server:
mentu-navigator-mcp - Library:
src/index.js - Agent skill:
skills/mentu-navigator/SKILL.md - Preferred front door: automatic
navigate - Specialist capabilities:
map,query,handles,symbol,impact
Frontmatter handles are a pointer layer only. They may rank documents and expose typed relationships, but agents must read the document body before making a consequential claim. Preserve the target repository's schema; normalization is read-only and must not become an implicit migration.
Change discipline
- Read
docs/README.mdand the relevant design note. - Keep the deterministic, read-only path working without embeddings.
- Add or update tests for routing, exclusions, provenance, and result shape.
- Validate the bundled skill and run
npm run verify. - Do not stage or commit without explicit user authorization.
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.
- 7d ago First seen · 46 lines · 439 tokens per session scan A be71944ecf23
mentu-navigator AGENTS.md is an instructions file published in the GitHub repository mentu-ai/mentu-navigator (0 stars, last pushed 16d ago), licensed Apache-2.0. It adds 439 tokens to every session, about $0.0022 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.
Other instructions, from other repositories
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.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.