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/googleapis/mcp-toolbox/agents-mdgit clone --depth 1 https://github.com/googleapis/mcp-toolboxWhat 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 | $0.00004 | $0.00004 |
| Opus 5 | $0.00002 | $0.00002 |
| Sonnet 5 | $0.00001 | $0.00001 |
| Haiku 4.5 | $0.00000 | $0.00000 |
Grade A, and why
mcp-toolbox 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.
Copies of this mod
7 near-identical copies found in the catalogue:
- mcp-toolbox CLAUDE.md — 100% identical, 0 lines differ
- saruca AGENTS.md — 100% identical, 0 lines differ
- foundry copilot-instructions.md — 100% identical, 2 lines differ
- Clawless AGENTS.md — 100% identical, 0 lines differ
- context CLAUDE.md — 86% identical, 2 lines differ
- neuledge CLAUDE.md — 86% identical, 2 lines differ
- proof-of-work AGENTS.md — 77% identical, 2 lines differ
What it actually says
GEMINI.md
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 · 1 lines · 4 tokens per session scan A 399080f41ccf
mcp-toolbox AGENTS.md is an instructions file published in the GitHub repository googleapis/mcp-toolbox (16,293 stars, last pushed yesterday), licensed Apache-2.0. It adds 4 tokens to every session, about $0.0000 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
agentfield CLAUDE.md
Claude Code instructions for Agent-Field/agentfield, covering claude.md, project overview, development setup, prerequisites and initial setup.
ii-agent CLAUDE.md
Instructions for Intelligent-Internet/ii-agent, covering ii-agent project guide, project overview, architecture, domain structure and orm base & id conventions.
agentfield AGENTS.md
AGENTS.md instructions for Agent-Field/agentfield, covering learned user preferences and learned workspace facts.
optillm CLAUDE.md
Instructions for algorithmicsuperintelligence/optillm, covering claude.md, project overview, core architecture, main components and development commands.
mcp-redis GEMINI.md
Instructions for redis/mcp-redis, covering redis mcp server extension, what this extension provides, available tools, string operations and hash operations.
giselle AGENTS.md
Instructions for giselles-ai/giselle, covering agents.md - giselle development guide, development philosophy, core principle: less is more, guidelines and project overview.