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/corvidlabs/agent-3md/claude-mdgit clone --depth 1 https://github.com/CorvidLabs/agent-3mdWrote 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/corvidlabs/agent-3md/claude-md)<a href="https://agentmods.dev/instructions/corvidlabs/agent-3md/claude-md"><img src="https://agentmods.dev/badge/instructions/corvidlabs/agent-3md/claude-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 | $0.00057 | $0.00057 |
| Opus 5 | $0.00028 | $0.00028 |
| Sonnet 5 | $0.00011 | $0.00011 |
| Haiku 4.5 | $0.00006 | $0.00006 |
Grade A, and why
agent-3md 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 5d 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
CLAUDE.md
This repo is governed by the CorvidLabs trust toolchain. See AGENTS.md for the
standing rules block and follow it before making changes (run fledge lanes run verify; never bypass the augur, attest, or spec gates).
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.
- 5d ago First seen · 6 lines · 57 tokens per session scan A a9b459522c8d
agent-3md CLAUDE.md is an instructions file published in the GitHub repository CorvidLabs/agent-3md (1 stars, last pushed yesterday), licensed MIT. It adds 57 tokens to every session, about $0.0003 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
sixb AGENTS.md
AGENTS.md instructions for sixb-ai/sixb, covering agents.md, scope, repo map, toolchain and core commands.
stoneforge AGENTS.md
Instructions for stoneforge-ai/stoneforge, covering agents.md, how to find documentation, quick start, backend tasks and frontend tasks.
daydreams CLAUDE.md
Instructions for daydreamsai/daydreams, covering claude.md, common development commands, package management, testing and documentation.
agent-framework-js CLAUDE.md
Claude Code instructions for polymind-inc/agent-framework-js, covering notes for ai coding assistants, non-negotiable rules, platform and status.
sixb CLAUDE.md
Claude Code instructions for sixb-ai/sixb, a project described as: Open-source TypeScript framework for building operational software used by humans and AI agents.
pydantic-ai AGENTS.md
AGENTS.md instructions for pydantic/pydantic-ai, covering your primary responsibility is to the project and its users, gathering context on the task, ensuring the task is ready for implementation, philosophy and requirements of all contributions.