Thalia, the assistant dock

A conversation with Thalia, an assistant that has read your project — and, unlike the generator tabs, can change it without asking first.

Opening the dock

Thalia is not a section on the activity bar. She lives in the dock down the right edge of the workspace, so whatever you are talking about stays on screen beside her.

• Open or close it with the ✦ Thalia button in the header, or Ctrl+I. The button’s tooltip reads Thalia (Ctrl+I), and Hide Thalia (Ctrl+I) while her tab is showing. Ctrl+I does nothing while you are typing in a text field or a document, where it is italic.
• The strip across the top of the dock reads Chat · Dialogue board · Definition · Entities · Picture · Variables │ History. The icons carry their names as tooltips. Chat is the conversation on this page; the five after it are the generators; History is the undo history, which the header’s History button also opens.
• Resize it by dragging its inner edge. It always docks on the right.
• A Viewer does not see her. Without the AI permission the Thalia button is not drawn and Ctrl+I does nothing; the header’s History button still opens the dock.
• Hiding the dock does not stop her. A turn that is running when you close the dock keeps running, and its results are still written when it finishes.

What it can do

Fifteen tools. Twelve of them write.

Tool	Effect
create_entity_definition	Writes an entity definition
create_entity_item	Writes an entity item
create_variable	Writes a variable
generate_board	Writes a board, its nodes and its edges
generate_board_from_document	Writes a board from a document
extend_board	Writes new nodes and edges onto the board you have open
generate_portrait	Writes an image, into your media library
create_document	Writes a new document, with content
edit_document	Writes into the document you have open — at your caret, over your selection, or at the end
create_spreadsheet	Writes a new spreadsheet, with typed columns and rows
fill_cells	Writes cell values into the sheet or entity grid you have open
add_rows	Writes rows onto the end of a sheet
search_lore	Reads only
get_resource_details	Reads only
get_asset_details	Reads only

Three of them need a surface open, because they write into the one you are looking at: edit_document, fill_cells and add_rows. The two create_* tools do not — they make a new document or sheet from nothing, wherever you are.

The agent loops at most 12 iterations in one turn.

What it can see

Thalia assembles a context of your project on every turn. The sections it builds, by their own headings:

• Existing definitions in the project
• Existing entity items in the project
• Existing variables in the project
• Existing variable contexts in the project
• Existing tags in the project
• Existing entity definitions, with their full field schemas
• Existing entity items
• Referenced entity items, in full
• Definitions you explicitly mentioned
• Entities you are currently focused on
• Documents you are currently focused on
• Referenced documents, truncated at a character limit
• What you are looking at right now — the surface open in the editor area and what is selected inside it (the board, document, sheet or grid, and the nodes, text or cells you have picked). It is recomputed every turn and carries no memory, and the chips above the composer show exactly what is going; press × on one to send the turn without it.

Reverting a session

A session’s status is committed or reverted.

• Revert conversation assets in the header undoes what a session wrote.
• A reverted session’s card reads Session reverted and offers Apply, which writes it back.

Writes land through the project’s own collaborative document, in transactions — so a board written by the agent arrives as one change rather than a hundred.

Credits

Charged the same way as everything else — metered by the work the turn actually took, not by a fixed price per message. See AI Generation, and the pricing page for the allowance on each plan.

A chat turn is one billed generation, however many tools the agent runs inside it.

Limits

Limit	Value
Rate	10 requests per 60 seconds, per IP address
Agent iterations per turn	12
Credits	Per plan; see pricing

Not plan-gated: every tier including Free can use it, and credits are the meter.

What breaks

Situation	Message
Out of credits	Insufficient AI credits. Please purchase more credits or wait for your monthly reset.
A generation service is unavailable	A message saying AI generation is not configured — contact support
Too many requests	Rate limited
The agent produced something you did not want	It is already in your project. Use Revert conversation assets.