holon: Instructions file for Claude Code

CLAUDE.md

holon CLAUDE.md is an instructions file for Claude Code from holon-run/holon. It costs 167 tokens per session, scanned A, original, Apache-2.0.

A short guide telling coding agents how to work in the Holon repository. It says to read AGENTS.md for the real project rules and to check more specific instructions in subdirectories.

In plain words
What is it for?
Use it before editing Holon code, especially when checking repository conventions, development commands, or deeper contributor documentation.
Why use it?
It gives agents a reliable starting point and helps them find the rules that apply to the files they will change.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is holon-run/holon's own configuration. It tells Claude Code how to work on holon itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything holon configures →

Reuse

Borrowing it

Nothing to install: this file belongs to holon-run/holon. 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/holon-run/holon/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/holon-run/holon

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 holon CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/holon-run/holon/claude-md/github.svg)](https://agentmods.dev/instructions/holon-run/holon/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/holon-run/holon/claude-md"><img src="https://agentmods.dev/badge/instructions/holon-run/holon/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.

agentmods 80×15 button for holon CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/holon-run/holon/claude-md"><img src="https://agentmods.dev/badge/instructions/holon-run/holon/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 167 This file is loaded in full into every session.
When invoked 167 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 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 $0.00167 $0.00167
Opus 5.5 $0.00067 $0.00067
Sonnet 5.5 $0.00033 $0.00033
Haiku 4.5 $0.00017 $0.00017

Measured 2mo ago against content hash ccc0e7634bad, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

holon 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.

CLAUDE.md · 17 lines

What it actually says

CLAUDE.md

This file is read by Claude Code and other agent tooling.

Repository-specific guidance (layout, commands, coding conventions, constraints) is maintained in AGENTS.md and should be treated as the source of truth.

  • Read AGENTS.md before making changes.
  • If you discover outdated guidance, update AGENTS.md (not this file).
  • If you work in a subdirectory, also check for nested AGENTS.md files with more specific rules.

For deeper contributor references (debugging, contracts), see docs/development.md.

Additional docs (non-authoritative, deeper dives):

  • CONTRIBUTING.md
  • docs/ (architecture, modes, skills, GitHub/CI integrations)
  • rfc/ (design notes and proposals)
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. 2mo ago First seen · 17 lines · 167 tokens per session scan A ccc0e7634bad

Subscribe to this mod's changes

holon CLAUDE.md is an instructions file published in the GitHub repository holon-run/holon (194 stars, last pushed yesterday), licensed Apache-2.0. It adds 167 tokens to every session, about $0.0007 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 2026-08-30.

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holon CLAUDE.md next to 6 instructions from other repositories
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