agcluster-container: Instructions file for Claude Code

CLAUDE.md

agcluster-container CLAUDE.md is an instructions file for Claude Code from whiteboardmonk/agcluster-container. It costs 4,703 tokens per session, scanned A, original, MIT.

Repository instructions describing AgCluster Container, a service that runs Claude agents inside isolated Docker containers and exposes them through a web interface and HTTP API.

In plain words
What is it for?
Use it as project guidance when changing or troubleshooting AgCluster Container's API, web UI, agent sessions, Docker setup, or preset configurations.
Why use it?
It gives coding agents the project's architecture, session flow, components, and key assumptions such as user-provided API keys and persistent conversation containers.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions subagents; names the NotebookEdit tool.

This is whiteboardmonk/agcluster-container's own configuration. It tells Claude Code how to work on agcluster-container 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 agcluster-container configures →

Reuse

Borrowing it

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

Made for: Claude Code.

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/whiteboardmonk/agcluster-container/claude-md.svg)](https://agentmods.dev/instructions/whiteboardmonk/agcluster-container/claude-md)
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Per session 4,703 This file is loaded in full into every session.
When invoked 4,703 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.04703 $0.04703
Opus 5 $0.02351 $0.02351
Sonnet 5 $0.00941 $0.00941
Haiku 4.5 $0.00470 $0.00470

Measured 7d ago against content hash dad4b8ad317b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agcluster-container 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 7d 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.

curl http://localhost:8000/health
CLAUDE.md · 547 lines

How it starts

The opening of the file, as written. The whole thing — 547 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 (claude.ai/code) when working with code in this repository.

Project Overview

AgCluster Container is a containerized runtime for Claude Agent SDK instances with a REST API for managing agent sessions. It allows Claude agents to run in isolated Docker containers with configurable tools and resources, accessible via Web UI and HTTP API.

Key Concept: Users bring their own Anthropic API keys (BYOK), and AgCluster creates persistent Docker containers per conversation running Claude SDK agents with configurable tools and resources. The system supports preset agent configurations (code-assistant, research-agent, data-analysis, fullstack-team) and custom inline configs. Containers are reused across messages in the same conversation thread, maintaining context.

Architecture

Web UI / API Client
  ↓ POST /api/agents/launch (create session with config)
  ↓ POST /api/agents/{session_id}/chat (send messages)
AgCluster API (FastAPI)
  ↓ Creates Docker container with session
  ↓ HTTP communication (http://{container_ip}:3000)
Agent Container (Claude SDK)
  ↓ ClaudeSDKClient initialized with session ID
  ↓ Executes tools in /workspace
  ↓ Streams responses via HTTP
AgCluster API
  ↓ Streams Claude SDK events as JSON
  ↓ Returns to client

Session Management Flow

Container Startup
  ↓
AgentServer.__init__()
  ↓
AgentServer.initialize_sdk()
  ↓ Creates ClaudeSDKClient(options)
  ↓ Enters context manager (session created)
  ↓ Session ID: e.g., "b28c5a6a-0f94-4840-8eb9-34f5e69c0641"
  ↓
WebSocket Server Ready
  ↓
[Query 1] client.query() → client.receive_messages()
[Query 2] client.query() → client.receive_messages() [same session]
[Query N] client.query() → client.receive_messages() [same session]
  ↓
Container Shutdown
  ↓
SDK context manager cleanup

Core Components

  1. FastAPI API Layer (src/agcluster/container/api/)
    • Claude-native chat endpoint (/api/agents/{session_id}/chat)
    • Agent configuration endpoints (/api/configs, /api/agents/launch)
    • Session management endpoints (/api/agents/sessions)
    • File operations API (/api/files)
    • Manages container lifecycle
    • Streams Claude SDK events as JSON

Read the full file on GitHub · 547 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. 7d ago First seen · 547 lines · 4,703 tokens per session scan A dad4b8ad317b

Subscribe to this mod's changes

agcluster-container CLAUDE.md is an instructions file published in the GitHub repository whiteboardmonk/agcluster-container (77 stars, last pushed 9mo ago), licensed MIT. It adds 4,703 tokens to every session, about $0.0235 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.

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