Chorus CLAUDE.md

Chorus CLAUDE.md is an instructions file for Claude Code from Chorus-AIDLC/Chorus. It costs 4,318 tokens per session, scanned A, original, AGPL-3.0.

Project instructions for Claude Code, an AI coding tool, when working on Chorus. They describe the project, its technology, file layout, and important commands.

In plain words
What is it for?
Use them when asking Claude Code to work on Chorus and needing guidance about its architecture, tools, directories, or development commands.
Why use it?
They give the coding agent the project context needed to make changes that fit the existing codebase. This reduces confusion about where code belongs and how the project is run.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

About the project

Chorus is a coordination harness for teams of coding agents and humans, combining agent orchestration, task tracking, permissions, observability, and recovery in one workflow. It is for collaborative software development where agents propose changes and people verify them before delivery, and the catalogue entries provide its skills, hooks, agents, commands, MCP integration, plugin, and configuration.

Chorus-AIDLC/Chorus · 1,158 stars · on GitHub · chorus-ai.dev

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/chorus-aidlc/chorus/claude-md
Clone the repo
git clone --depth 1 https://github.com/Chorus-AIDLC/Chorus

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 Chorus CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/chorus-aidlc/chorus/claude-md.svg)](https://agentmods.dev/instructions/chorus-aidlc/chorus/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/chorus-aidlc/chorus/claude-md"><img src="https://agentmods.dev/badge/instructions/chorus-aidlc/chorus/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 4,318 This file is loaded in full into every session.
When invoked 4,318 The same file — it is already loaded in full.
Security scan A 1 finding. 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 5.1 $0.04318 $0.04318
Opus 5 $0.02159 $0.02159
Sonnet 5 $0.00864 $0.00864
Haiku 4.5 $0.00432 $0.00432

Measured 6d ago against content hash 6ec6a154788f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

Chorus CLAUDE.md scanned grade A with 1 finding 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.

Makes network callslowCapability

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

| `public/skill/` | Standalone skill — served as static assets at `/skill/`, consumed by any agent via curl download |
CLAUDE.md · 238 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 6d ago First seen · 238 lines · 4,318 tokens per session scan A 6ec6a154788f

Subscribe to this mod's changes

Chorus CLAUDE.md is an instructions file published in the GitHub repository Chorus-AIDLC/Chorus (1,158 stars, last pushed yesterday), licensed AGPL-3.0. It adds 4,318 tokens to every session, about $0.0216 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.