amicus CLAUDE.md

Project instructions for Amicus, a tool that lets Claude Code ask several AI models to explore a task in parallel.

In plain words
What is it for?
Choosing different AI models for different tasks, running background explorations, preserving sessions, and detecting file conflicts or outdated context.
Why use it?
They explain how to split research or coding work across models and bring back the useful results without cluttering the main conversation.

Instructions file

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/bourbondog/amicus/claude-md
Clone the repo
git clone --depth 1 https://github.com/BourbonDog/amicus
Per session 3,569 This file is loaded in full into every session.
When invoked 3,569 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.03569 $0.03569
Opus 5 $0.01784 $0.01784
Sonnet 5 $0.00714 $0.00714
Haiku 4.5 $0.00357 $0.00357

Measured 2d ago against content hash 02da77f4363e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

amicus 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 2d 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 · 299 lines

How it starts

The opening of the file, as written. The whole thing — 299 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code when working with code in this repository.

Project Overview

Amicus is a multi-model subagent tool that extends Claude Code with the ability to spawn parallel conversations with different LLMs (Gemini, GPT-4, o3, etc.) and fold the results back into the main context.

Core Features

  • Fork & Fold Workflow: Spawn specialized models for deep exploration, fold summaries back
  • Multi-Model Routing: Use the right model for the job (Gemini's large context, o3's reasoning, GPT-4's coding)
  • Clean Context: Isolate deep explorations to parallel sessions, keep main conversation focused
  • Async-Safe Operations: File conflict detection and context drift warnings
  • Session Persistence: Resume, continue, or read previous sessions

Key Value Proposition

  1. Right model for the job - Route tasks to specialized models
  2. Keep context clean - Isolate deep explorations
  3. Work in parallel - Background execution with Ctrl+B
  4. Safe async - Conflict and drift detection

Essential Commands

Development

npm start                    # Run amicus CLI (interactive)
npm run lint                 # Run ESLint

CLI

amicus start --model gemini --prompt "..."  # Start a headless session
amicus fanout --models g4o,gemini --prompt "..." --json  # Multi-model fanout wave
amicus models                              # List available models
amicus models --search gpt                # Filter catalog
amicus read <taskId>                      # Read session output
amicus list                               # List sessions

Testing

npm test                           # Unit tests (excludes *.integration.test.js) -- the pre-push gate
npm run test:integration           # Integration tier, KEYLESS: credentials scrubbed, paid suites skip (free, ~10s)
npm run test:integration:live      # Integration tier with real keys -- SPENDS MONEY (release ritual only)
npm run test:all                   # Unit + integration with real keys -- SPENDS MONEY (not a gate anywhere)
npm test tests/context.test.js     # Single file (preferred during dev)
npm test -- --coverage             # Coverage report

Read the full file on GitHub · 299 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.

  1. 2d ago First seen · 299 lines · 3,569 tokens per session scan A 02da77f4363e

Subscribe to this mod's changes

amicus CLAUDE.md is an instructions file published in the GitHub repository BourbonDog/amicus (2 stars, last pushed 3d ago), licensed MIT. It adds 3,569 tokens to every session, about $0.0178 per session on Opus 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.

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