# Behavior

How your agent talks, streams, and remembers.

## Pages

- [Prompt Strategies](prompt-strategies.md) — System prompt templates, role composition, example injection.
- [Output Parsing](output-parsing.md) — Structured output with `chatWithFormat`, retries, validation.
- [Streaming](streaming.md) — `streamChatWithTools`, chunk types, event flow.
- [Variants](variants.md) — Quality, speed, cost tiers on a single agent.
- [Memory](memory.md) — Conversation history, window management, summarization.