What is beanz CLAUDE.md?

A set of instructions for coding agents working on beanz, a Rust program that measures cognitive debt in AI coding sessions. It defines coding practices, communication rules, and required checks.

Use it when adding features, fixing bugs, improving test coverage, or making architecture changes in the beanz Cargo project.

It keeps the agent focused on the requested work and makes the project's expectations clear. It also helps catch problems with Rust checks and tests before work is considered complete.

How daveepope/beanz configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to daveepope/beanz. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/daveepope/beanz/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/daveepope/beanz

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/daveepope/beanz/claude-md/github.svg)](https://agentmods.dev/instructions/daveepope/beanz/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/daveepope/beanz/claude-md"><img src="https://agentmods.dev/badge/instructions/daveepope/beanz/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/daveepope/beanz/claude-md"><img src="https://agentmods.dev/badge/instructions/daveepope/beanz/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,259 This file is loaded in full into every session.

When invoked 1,259 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 100% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.01259	$0.01259
Opus 5.5	$0.00504	$0.00504
Sonnet 5.5	$0.00252	$0.00252
Haiku 4.5	$0.00126	$0.00126

Measured 2mo ago against content hash 8124671a02eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

beanz 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 2mo 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.

Origin

This is a copy

100% identical to beanz AGENTS.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

beanz — agent instructions

General programming workflows

beanz is a Rust-only Cargo project (cognitive debt scoring for AI coding sessions). Use idiomatic Rust unless stated otherwise.
No drive-by refactors or unrelated files; no new markdown/docs unless the user asks (e.g. READMEs).
Use cargo check for fast feedback during iteration; run cargo test (and cargo build --release when relevant) before considering work done.
Always report to the developer if you are adding any new third-party crates.
Never stray away from the plan set out by the developer.
Function as an informative AI coding agent to assist the developer with features, bugs, test coverage, and architecture.
Stay within the bounds of the task set out to you.
If you are not confident in your answers, say so — honesty is critical.
Do not commit unless the developer explicitly asks. Ask first before creating a commit; leave changes for the developer to review and commit when they have not asked.

AI communication

Keep replies concise and consistent in tone and structure.
Be clear; ask direct questions when something is ambiguous. Do not waffle, hedge with filler, or pad with generic advice.
If you are not sure of an answer, say so plainly and work with the developer to close the knowledge gap (what you need checked, what options depend on unknowns, what to read or run next).

Naming conventions (strict)

Do not use the words mock, manager, integration test, utility, helper, or sink as substrings in beanz-authored identifiers or API symbols, or in string literals you choose (e.g. not SessionManager, build_helper). Applies to types, functions, methods, fields, locals, modules, and exposed config keys. Prefer neutral names such as setup_*, build_*, with_*, prepare_*.
This applies to the entire codebase, not only pub items.

Public API and abstractions

Read the full file on GitHub · 63 lines

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.

2mo ago First seen · 63 lines · 1,259 tokens per session scan A 8124671a02eb

Subscribe to this mod's changes

beanz CLAUDE.md is an instructions file published in the GitHub repository daveepope/beanz (6 stars, last pushed 10d ago), licensed MIT. It adds 1,259 tokens to every session, about $0.0050 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to beanz AGENTS.md, differing in 0 lines, and is treated as a copy.

beanz CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
beanz CLAUDE.mddaveepope/beanz	Instructions file	6	10d ago	MIT	A	1,259	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,649	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	1,907	GitHub Copilot

beanz: Instructions file for Claude Code