> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> STT). 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.

# Agent Settings

> Every setting for your agent, in plain terms.

<img src="https://fdr-prod-docs-files-public.s3.us-east-1.amazonaws.com/smallest-ai.docs.buildwithfern.com/d417d7aa52bec145cdc65a5ccb685ca09dcf1d9fc076891cac82c0f3a95541e6/products/atoms/pages/platform/building-agents/images/agent-settings.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6KXJSKKNFOCF7G4B%2F20260725%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260725T060224Z&X-Amz-Expires=604800&X-Amz-Signature=7ce5d3c98ff81fb879c0b7fab6ce41de9eb3ad051cc65912a3065397de86ccd7&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject" alt="Agent Settings dashboard showing the Configure Behavior, Connect External Services, and Monitor & Improve panels" />

Once your agent's prompt is in place, these settings control how it behaves, connects to your systems, and gets monitored over time. Jump to any section below.

## Configure Behavior

#### [Prompt](/voice-agents/platform/create-agent/prompt)

The core instructions that define your agent's role, behavior, and guardrails.

#### [Variables](/voice-agents/platform/create-agent/agent-settings/variables)

Insert dynamic values into your prompt using `{{variable_name}}`.

#### [API Calls](/voice-agents/platform/create-agent/agent-settings/api-calls)

Fetch or send data mid-call, like looking up an order or booking a slot.

#### [Widget](/voice-agents/platform/create-agent/agent-settings/widget)

Embed a voice or chat widget directly on your website.

#### [Versioning](/voice-agents/platform/create-agent/agent-settings/versioning)

Save and restore previous versions of your agent configuration.

## Monitor & Improve

#### [Prompt Scoring](/voice-agents/platform/create-agent/agent-settings/prompt-scoring)

Automatically evaluate how well your agent follows its prompt.

#### [Post-Call Metrics](/voice-agents/platform/create-agent/agent-settings/post-call-metrics)

Review summaries, transcripts, and performance data after each call.

#### [Conversation Logs](/voice-agents/platform/create-agent/agent-settings/conversation-logs)

Review transcripts and debug agent behavior after a call.