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 agentmods add instructions/amadeusitgroup/otter/agents-mdgit clone --depth 1 https://github.com/AmadeusITGroup/otterWhat 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 | $0.00808 | $0.00808 |
| Opus 5 | $0.00404 | $0.00404 |
| Sonnet 5 | $0.00162 | $0.00162 |
| Haiku 4.5 | $0.00081 | $0.00081 |
Grade A, and why
otter 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to AI coding agents when working with code in this repository.
Following the agents.md specification for cross-LLM compatibility.
Quick Start
Type: Large Nx-powered monorepo for the Otter Framework - Angular-based framework and tooling
Essential Commands:
yarn install # Install dependencies (always first)
yarn build # Build all packages
yarn lint # Lint (mandatory before PR)
yarn test # Unit tests (mandatory before PR)
Package Manager: Yarn 4.14.1 (Berry) with PnP - NEVER use npm or pnpm Node Version: 22.22.3+ or 24.15.0+ or 26.0.0+
Context Files
Detailed documentation is split into context-specific files in .agents/ to reduce token usage. Load only what you need for your current task:
Always Relevant
- overview.md - Repository structure, tech stack, and package scopes
Task-Specific Context
Building & Development:
- build.md - Build system, commands, and Nx targets
- runtime.md - Runtime requirements and setup
Code Quality:
- testing.md - Unit, integration, and E2E testing guidelines
- linting.md - ESLint configuration and linting commands
- code-style.md - TypeScript conventions, JSDoc, and best practices
Version Control:
- git-workflow.md - Git workflow, commit messages, protected branches, CI/CD rules, and PR creation (read this before opening any PR)
Contributing:
- contributing.md - Contribution rules, PR process, and quality requirements
Advanced Features:
- advanced.md - Otter-specific concepts, metadata extraction, core modules
- tools.md - Verdaccio, documentation generation, VSCode integration
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.
- 3d ago First seen · 101 lines · 808 tokens per session scan A 00e50c881fac
otter AGENTS.md is an instructions file published in the GitHub repository AmadeusITGroup/otter (57 stars, last pushed 5d ago), licensed BSD-3-Clause. It adds 808 tokens to every session, about $0.0040 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.
Other instructions, from other repositories
kilocode AGENTS.md
AGENTS.md instructions for Kilo-Org/kilocode, covering agents.md, build and dev, quality checks, products and package instructions.
spartan CLAUDE.md
Instructions for spartan-ng/spartan, covering working in this repo (notes for claude / ai agents), before pushing: run the ci checks locally and pull requests.
openbridge-webcomponents line-area-charts.instructions.md
Instructions for Ocean-Industries-Concept-Lab/openbridge-webcomponents, covering line/area charts & gauge trend, architecture overview, key principle: logic in base class, subclasses stay thin, base class architecture and line graph (non-filled).
openbridge-webcomponents integration-systems.instructions.md
Instructions for Ocean-Industries-Concept-Lab/openbridge-webcomponents, covering integration system components, obc-integration-button is the shared primitive, conventions and icon-heavy stories.
vscode-gitlens CLAUDE.md
Claude Code instructions for gitkraken/vscode-gitlens, a project described as: Supercharge Git inside VS Code and unlock untapped knowledge within each repository — Visualize code authorship at a glance via Git blame annotations and CodeLens, seamlessly navigate and explore Git repositories, gain valuable insights via…
vscode-winteriscoming AGENTS.md
Instructions for johnpapa/vscode-winteriscoming, covering winter is coming theme — agent guide, repository structure, tech stack, theme variants and build & run.