Multi-Agent Supervisor and Swarm

Two multi-agent orchestration patterns for customer service built with LangGraph: a supervisor pattern where a central router dispatches to specialist agents, and a swarm pattern where agents hand off directly to each other using Command-based transfers. Both use create_agent with domain-specific tools and LangSmith tracing.

Prerequisites

• Python 3.11+
• Anthropic API key
• LangSmith API key

Setup

python -m venv venv
source venv/bin/activate
pip install -r requirements.txt
cp .env.example .env
# Edit .env with your API keys

Environment Variables

Variable	Required	Description
ANTHROPIC_API_KEY	Yes	Anthropic API key for Claude
LANGSMITH_API_KEY	Yes	LangSmith API key for tracing and evals
LANGSMITH_TRACING	Yes	Set to true to enable tracing

Running

Run the supervisor pattern:

python supervisor.py

Run the swarm pattern:

python swarm.py

Article

[Multi-Agent Orchestration -- Supervisor and Swarm Patterns in LangGraph ](url)