AI Chat

ChatML's AI chat provides real-time interaction with Claude, giving it direct access to your codebase.

Real-Time Streaming

When Claude works, you see everything as it happens:

• Text streaming — Response text appears as it's generated, rendered as Markdown with syntax highlighting
• Tool execution — Each tool call shows its name, parameters, status (running/success/failure), and duration
• Extended thinking — When enabled, Claude's reasoning process is displayed in a collapsible section (see Extended Thinking)
• Sub-agent tracking — When Claude spawns sub-agents for parallel tasks, each is tracked independently (see Sub-Agents)
• Elapsed time — A running timer shows how long the current response has been generating

Sending Messages

Type your message in the input area and press Enter to send. Claude receives your message along with the full conversation context and begins working.

Message Features

• Markdown formatting — Messages support full Markdown
• File @ mentions — Type @ to reference files from your worktree (see File @ Mentions)
• Multi-line input — Use Shift+Enter for new lines
• Message recall — Press Up Arrow in an empty input to recall your last message
• Draft persistence — Your unsent message is automatically saved when you switch sessions and restored when you return

Attachments

Attach files and images to give Claude additional context:

• Drag and drop — Drop files directly onto the chat input
• Paste from clipboard — Paste images or screenshots with Cmd+V
• Long text auto-conversion — Very long pasted text is automatically converted to an attachment
• File type support — Code files, images, and common document formats

Slash Commands

Type / in the message input to access slash commands — quick actions for common tasks like starting a code review, creating a PR, or invoking specific skills. Commands are filtered and scored as you type.

Stopping the Agent

• Cmd+Shift+S — Stop the current agent
• Cmd+. — Interrupt the agent (softer stop)
• Click the Stop button in the UI

Model Selection

Choose your Claude model in Settings > AI > Model:

You can also set a fallback model that activates when the primary model fails.

Recently Closed Conversations

Accidentally closed a conversation? ChatML keeps a history of recently closed conversations (within 24 hours). Look for the recently closed popover in the conversation tabs area to restore them with one click.