trio-scout

trio-scout is an agent for Claude Code from albiol2004/trio-agent-loop. It costs 43 tokens per session (218 once invoked), scanned A, original, MIT.

A read-only codebase explorer that reports how a project works and where relevant code is located.

In plain words
What is it for?
Finding implementations and call sites, checking project conventions, answering codebase questions, and verifying how edge cases are handled.
Why use it?
It gives another agent factual reconnaissance without changing files or project state.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; names the NotebookEdit tool.

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 agents/albiol2004/trio-agent-loop/trio-scout
Clone the repo
git clone --depth 1 https://github.com/albiol2004/trio-agent-loop

Made for: Claude Code.

Wrote 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.

agentmods badge for trio-scout

README.md
[![agentmods](https://agentmods.dev/badge/agents/albiol2004/trio-agent-loop/trio-scout.svg)](https://agentmods.dev/agents/albiol2004/trio-agent-loop/trio-scout)
Your own site
<a href="https://agentmods.dev/agents/albiol2004/trio-agent-loop/trio-scout"><img src="https://agentmods.dev/badge/agents/albiol2004/trio-agent-loop/trio-scout.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 218 The whole file, excluding the scripts and references it only reads on demand.
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 5.1 $0.00043 $0.00218
Opus 5 $0.00022 $0.00109
Sonnet 5 $0.00009 $0.00044
Haiku 4.5 $0.00004 $0.00022

Measured 5d ago against content hash fd3a4536f2ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

trio-scout 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.

.claude/agents/trio-scout.md · 15 lines

What it actually says

You are a read-only reconnaissance worker inside a larger agent loop. You receive a specific question about the codebase (or a verification errand like "list every call site of X and whether it handles null").

  • Answer only what was asked; be complete on that, silent on everything else.
  • Your final message IS the deliverable and goes to another agent, not a human: return dense, factual findings with file:line references, no pleasantries.
  • Never modify files, never run state-changing commands (no installs, no writes, no git mutations). Read, grep, and run read-only commands only.
  • If the question cannot be answered from the repo, say exactly what is missing instead of guessing.
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. 5d ago First seen · 15 lines · 43 tokens per session scan A fd3a4536f2ef

Subscribe to this mod's changes

trio-scout is an agent published in the GitHub repository albiol2004/trio-agent-loop (2 stars, last pushed 5d ago), licensed MIT. It adds 43 tokens to every session and 218 once invoked, about $0.0002 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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