Agent Systems Handbook（智能体系统手册）

import SupportCTA from "/snippets/support-cta.mdx";

Summary

This starter shows the smallest useful graph-shaped agent example in the repo: plan, route, synthesize.

Status

starter

Source code: ecosystem/examples/langgraph-starter

Why It Exists

Framework comparison pages are easier to extend when contributors can point to small repo-owned examples instead of only to external demos. This starter keeps the shape recognizable without turning the repo into a framework tutorial set.

Related Lab Pages

• Agent Frameworks
• Ecosystem Overview

Folder Structure

langgraph-starter/
├── index.mdx
└── src/
    ├── branching.py
    ├── graph.py
    └── run_summary.py

Quick Start

This project is a starter. Read src/graph.py for the minimal graph state and node boundaries, then expand it into a fuller runnable example if needed. For a repo-level smoke check, run python3 scripts/verify_example_projects.py from the repository root.

Included Sample Files

• src/graph.py: a minimal plan, route, synthesize state transition sketch
• src/branching.py: a narrow example of how route choice and retry policy can be made explicit
• src/run_summary.py: a tiny reporting surface for turning graph state into a readable execution summary

Constraints

• No framework dependency is wired.
• The graph is illustrative rather than executable.
• Tool adapters and model calls are placeholders.

Next Steps

• Add a real runtime dependency.
• Add one tool node and one retry path.