Chat Interface

The Chat tab is Studio's primary interaction surface. It provides a rich conversation interface with streaming responses, tool call visualization, and artifact rendering.

Streaming Responses

Chat uses Server-Sent Events (SSE) to stream agent responses in real time. Tokens appear as they're generated — no waiting for the full response before seeing output.

Model Selection

The chat toolbar includes a Model control on the left:

• Before the first message — Choose a provider and model for the new session (or leave default — cascade to use Settings defaults). The choice is pinned when the session starts.
• During a session — Open the same control to change or reset the pin. The pin applies to that session only; other users and sessions keep their own selection.

The resolution order for each message is:

Session pin → User default → Team → Org → Platform

Empty pin fields fall through to the next layer. If a pinned provider has no credential, the session still runs on the cascade default and Studio shows a soft warning — the pin is not cleared automatically.

/status reports the effective model for this session (including any pin), not a process-wide singleton.

Team-wide defaults still live in Settings → Providers. Use the chat Model control for per-conversation overrides.

Tool Call Visualization

When the agent invokes tools, the chat displays:

• Tool name and parameters (collapsible)
• Execution status (running, complete, error)
• Output formatted for readability (code blocks, tables)

Tool calls appear inline within the response stream, showing exactly when and how the agent uses its capabilities.

Slash Commands

Type / in the input to access available commands:

Command	Description
/help	Show available commands
/status	Show this session's provider, model (including pin), and tools info
/new	Start a fresh conversation
/compact	Show context window usage
/distill	Distill the current session into a reusable flow
/fleet	Start a fleet-based task with specialized agents
/fleet-plan	Create a reusable fleet plan
/drill	Create a drill suite with guided wizard
/drill-add	Add new drills to an existing suite

Artifact Rendering

When the agent produces artifacts (files, reports, applications), they render inline:

• Markdown reports — Rendered as formatted documents directly in the chat
• Code files — Syntax-highlighted with copy button
• Applications — Embedded preview with live interaction (see Generative UI)

Non-report file writes appear as compact download tiles linking to the Files panel.

Session Management

The sidebar lists previous sessions with timestamps and preview text. Click any session to resume it. Sessions can be:

• Resumed at any time
• Deleted when no longer needed

Input Features

• Multi-line input — Shift+Enter for new lines
• File attachment — Drag and drop files into the input area
• Slash command autocomplete — Type / to see available commands with filtering