What is fleans CLAUDE.md?

A repository instruction file for fleans, a software project maintained by nightBaker. It covers how to maintain the file, build and test the project, use Git, and treat documentation as part of completed work.

Use it when making changes to fleans so agents follow its build, test, workflow, and documentation requirements.

It gives coding agents the project’s working rules, helping them include required tests, Git steps, and documentation in their changes.

How nightBaker/fleans configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to nightBaker/fleans. 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/nightBaker/fleans/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/nightBaker/fleans

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/nightbaker/fleans/claude-md/github.svg)](https://agentmods.dev/instructions/nightbaker/fleans/claude-md)

Your own site

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

Per session 2,153 This file is loaded in full into every session.

When invoked 2,153 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.02153	$0.02153
Opus 5.5	$0.00861	$0.00861
Sonnet 5.5	$0.00431	$0.00431
Haiku 4.5	$0.00215	$0.00215

Measured 6d ago against content hash 2182810bd973, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fleans 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 6d 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.md · 97 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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.

6d ago Changed · -4 tokens per session 2182810bd973
9d ago Changed · +2 lines · +21 tokens per session a883408c2490
11d ago Changed · +1 lines · +19 tokens per session ded07c8b0210
13d ago Changed · +1 lines · +54 tokens per session 7820b9f508ac
20d ago Changed · +59 tokens per session df1d708b4dae
22d ago Changed · +2 lines · +133 tokens per session b6f018bf140e
24d ago Changed · -35 lines · -1,957 tokens per session 579367ee9d07
25d ago Changed · +47 tokens per session c26c1ab39f24
2mo ago First seen · 126 lines · 3,781 tokens per session scan A 3af2c453f934

Subscribe to this mod's changes

fleans CLAUDE.md is an instructions file published in the GitHub repository nightBaker/fleans (10 stars, last pushed yesterday), with no licence file. It adds 2,153 tokens to every session, about $0.0086 per session on Opus 5.5. 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.

fleans CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
fleans CLAUDE.mdnightBaker/fleans	Instructions file	10	yesterday	none	A	2,153	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

fleans: Instructions file for Claude Code