dormouse AGENTS.md

Project-specific instructions for working on diffplug/dormouse, including its setup, architecture, specifications, and specification lifecycle.

In plain words
What is it for?
Use them when modifying, setting up, or reviewing the dormouse project and its specs.
Why use it?
They give a coding agent the repository context needed to make changes that fit the project's existing practices.

Instructions file for CodexOpenCode

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/diffplug/dormouse/agents-md
Clone the repo
git clone --depth 1 https://github.com/diffplug/dormouse

Made for: Codex, OpenCode.

Per session 4,532 This file is loaded in full into every session.
When invoked 4,532 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.04532 $0.04532
Opus 5 $0.02266 $0.02266
Sonnet 5 $0.00906 $0.00906
Haiku 4.5 $0.00453 $0.00453

Measured yesterday against content hash f2676e05fca7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dormouse 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 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.

AGENTS.md · 121 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 121 lines · 4,532 tokens per session scan A f2676e05fca7

Subscribe to this mod's changes

dormouse AGENTS.md is an instructions file published in the GitHub repository diffplug/dormouse (5 stars, last pushed yesterday), with no licence file. It adds 4,532 tokens to every session, about $0.0227 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.