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/ruddercode/rudder/agents-mdgit clone --depth 1 https://github.com/RudderCode/RudderWhat 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 | $0.00260 | $0.00260 |
| Opus 5 | $0.00130 | $0.00130 |
| Sonnet 5 | $0.00052 | $0.00052 |
| Haiku 4.5 | $0.00026 | $0.00026 |
Grade A, and why
Rudder 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 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.
What it actually says
Working in this repo
This is an experimental, pre-release product repo. Do not worry about things like backwards compatibility, migrating functionality for existing users, etc.
Infrastructure
General Guidance
Before editing files, read dangerfile.ts and never modify paths matched by its PROTECTED_PATHS rules.
Source files can also contain comment-only agent-guard:off and agent-guard:on markers.
Agents must not modify content between those markers.
Treat changes to guard rules or markers as explicit policy changes, never as a workaround for a blocked edit.
Run npm run typecheck, npm test, and npm run build before changing shared
infrastructure.
Use gitmoji in commit messages and PR titles.
Every coding agent that writes code for a pull request must identify itself in the pull request's commit history.
Use the agent as the commit author or add a Co-authored-by: Agent Name <agent-email> trailer to at least one commit.
The name must clearly identify the agent (for example, Codex Agent, Claude Agent, or Cursor Agent) because agent-only CI, including Danger agent-guard enforcement, uses this metadata.
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.
- 2d ago First seen · 25 lines · 260 tokens per session scan A 54bdcbf17895
Rudder AGENTS.md is an instructions file published in the GitHub repository RudderCode/Rudder (22 stars, last pushed 13d ago), licensed Apache-2.0. It adds 260 tokens to every session, about $0.0013 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
Monet CLAUDE.md
Instructions for Monet-AI-Editor/Monet, covering monet — claude agent guide, ⚠️ finding editorctl — mandatory (read this first), ⚠️ absolute paths only — mandatory, ⚠️ output file naming — mandatory (read this first) and ⚠️ audio on multi-clip timelines — mandatory.
KLIDE CLAUDE.md
Instructions for pierreprudh/KLIDE, covering claude.md — klide project context, what klide is, vision in one sentence, design philosophy and stack.
memi CLAUDE.md
Claude Code instructions for memi-design/memi, covering mémoire — guidelines for claude, prime directives, what is mémoire, widget v2 operating model and architecture.
memi AGENTS.md
AGENTS.md instructions for memi-design/memi, covering mémoire — guidelines for codex, prime directives, what is mémoire, architecture and atomic design levels.
lunar AGENTS.md
Instructions for gszr/lunar, covering how to work here, our goals, before you type, code and scope.
agents-md-kit AGENTS.md
Linter, validator, and scaffolding tool for AGENTS.md and SKILL.md files.