What is arkon CLAUDE.md?

Project instructions for Claude Code in the Arkon codebase, focused on using rtk, a Rust tool that reduces command output sent to the agent.

They guide common command-line work in Arkon, with examples of incorrect and preferred commands.

They help keep command output smaller and show which rtk commands to use instead of less efficient alternatives.

How nduckmink/arkon configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to nduckmink/arkon. 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/nduckmink/arkon/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/nduckmink/arkon

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/nduckmink/arkon/claude-md/github.svg)](https://agentmods.dev/instructions/nduckmink/arkon/claude-md)

Your own site

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

Per session 1,626 This file is loaded in full into every session.

When invoked 1,626 The same file — it is already loaded in full.

Security scan C 2 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	$0.01626	$0.01626
Opus 5.5	$0.00650	$0.00650
Sonnet 5.5	$0.00325	$0.00325
Haiku 4.5	$0.00163	$0.00163

Measured 2mo ago against content hash 5a75ae1c7c5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

arkon CLAUDE.md scanned grade C with 2 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

rtk curl <url> # Compact HTTP responses (70%)

CLAUDE.md · 174 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.

2mo ago First seen · 174 lines · 1,626 tokens per session scan C 5a75ae1c7c5d

Subscribe to this mod's changes

arkon CLAUDE.md is an instructions file published in the GitHub repository nduckmink/arkon (1,519 stars, last pushed 5mo ago), with no licence file. It adds 1,626 tokens to every session, about $0.0065 per session on Opus 5.5. A static security scan graded it C with 2 findings (hidden instructions, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

enterprise-ai knowledge-base-embeddings knowledge-based-systems knowledge-bases llm-wiki-personal-knowledge-base mcp

arkon CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
arkon CLAUDE.mdnduckmink/arkon	Instructions file	1.5k	5mo ago	none	C	1,626	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	today	MIT	A	7,461	Codex, OpenCode
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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

arkon: Instructions file for Claude Code