Overview

End-to-end runnable scripts demonstrating ag2. Each example is self-contained, instantiates a GeminiConfig directly, and exercises one or two specific harness primitives so you can read it top-to-bottom and copy what you need.

Examples

#	Page	Topic	Primitives covered
01	Hello Agent	Minimal Agent — one config, one ask	Agent, GeminiConfig
02	Recipe Builder	Tools + Pydantic structured output	Agent, tools=, response_schema=
03	Travel Planner	Multi-turn chat via chained reply.ask()	agent.ask(), reply.ask()
04	Token Watchdog	Built-in + custom observers, ObserverAlert	BaseObserver, TokenMonitor, LoopDetector, EventWatch
05	Research Squad	Parallel subtasks + sibling delegation	run_subtasks(parallel=True), Agent.as_tool()
06	Journal Companion	Persistent memory across runs	KnowledgeConfig, WorkingMemoryAggregate, WorkingMemoryPolicy
07	Long-Doc Chat	Composing assembly policies + compaction	assembly=[...], SlidingWindowPolicy, TokenBudgetPolicy, TailWindowCompact
08	Safety Guard	FATAL alert → AlertPolicy → HaltEvent	ObserverAlert(FATAL), AlertPolicy, HaltEvent

Set GEMINI_API_KEY (or swap in another provider's ModelConfig — AnthropicConfig, OpenAIConfig, etc.) before running.