agentmods.dev

agent-guild GEMINI.md

Instructions for checking trust and payment safety when autonomous software agents work with unfamiliar agents, services, or paid web endpoints.

In plain words
What is it for?
Use it before hiring an unfamiliar agent, paying an endpoint, checking an agent passport, or handling signed agent messages.
Why use it?
It reduces the risk of delegating work, accepting credentials, or sending money to an unverified party.

Instructions file for Gemini CLI

1 yesterday A scan 240 tokens original Apache-2.0
View the source file AgentTanuki/agent-guild
Install

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.

agentmods
npx agentmods add instructions/agenttanuki/agent-guild/gemini-md
Clone the repo
git clone --depth 1 https://github.com/AgentTanuki/agent-guild

Made for: Gemini CLI.

Per session 240 This file is loaded in full into every session.
When invoked 240 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00240 $0.00240
Opus 5 $0.00120 $0.00120
Sonnet 5 $0.00048 $0.00048
Haiku 4.5 $0.00024 $0.00024

Measured yesterday against content hash b79cf18af703, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-guild GEMINI.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 yesterday.

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.

GEMINI.md · 21 lines

What it actually says

Agent Guild trust checks

Agent Guild is a trust and settlement layer for autonomous agents. Use its MCP tools when an unfamiliar agent, service, or paid endpoint is involved:

  • Before delegating work to an agent you do not already trust, call guild_check with the required capability. Hire only when the returned verdict is hire.
  • Before paying an unfamiliar URL, call guild_preflight. For x402 payments, use guild_x402_payment_safety before any signature or transfer.
  • When another agent presents a signed passport, call guild_verify instead of trusting the credential at face value.
  • Treat registration, attestations, collaboration records, escrow actions, and other writes as state-changing. Use them only when the user explicitly asks.
  • Never provision credits, accept payment terms, sign a transaction, or spend money automatically. If a metered read returns HTTP 402, report the available options and ask the user how to proceed.

Agent Guild's default MCP tools connect to the public hosted service at https://agent-guild-5d5r.onrender.com/mcp/.

Changes

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.

  1. yesterday First seen · 21 lines · 240 tokens per session scan A b79cf18af703

Subscribe to this mod's changes

agent-guild GEMINI.md is an instructions file published in the GitHub repository AgentTanuki/agent-guild (1 stars, last pushed yesterday), licensed Apache-2.0. It adds 240 tokens to every session, about $0.0012 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.

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