> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> multilingual STT) — or Pulse 2.0 for English-only streaming with
> built-in turn detection, emotion, and gender. Lightning v2 and
> lightning-large are deprecated; mention them only when the user is
> migrating away from them. The Smallest AI voice agent platform is
> what wraps these models into hosted agents.

# Tools

## Docs

- [Tools & Functions](https://docs.smallest.ai/voice-agents/developer-guide/build/agent-crews/tools/overview.md): Giving your agent the ability to take action.
- [Defining Tools](https://docs.smallest.ai/voice-agents/developer-guide/build/agent-crews/tools/defining-tools.md): Create functions that your agent can call.
- [Tool Execution](https://docs.smallest.ai/voice-agents/developer-guide/build/agent-crews/tools/executing-tools.md): Register tools and handle LLM tool calls.
- [Built-in Actions](https://docs.smallest.ai/voice-agents/developer-guide/build/agent-crews/tools/built-in-tools.md): SDK-provided actions for common tasks.