| name | cowart-open-canvas |
| description | Open the Cowart infinite canvas (tldraw) in Vetta Desktop. Use when the user asks to open, launch, view, or work in the Cowart canvas or wants an infinite canvas for visual planning/image work. |
Cowart Open Canvas (Vetta 1:1)
Host mapping
| Codex | Vetta |
|---|
MCP App widget (ui://widget/...) | Activity panel tab with full tldraw App |
window.cowartMcp bridge | Plugin installs the same bridge via ctx.fs + conversation.sendPrompt |
| Canvas files under project | <projectDir>/canvas/ (shared with MCP tools) |
Workflow
- Call plugin tool
open_cowart_canvas (opens the Cowart activity tab at max width).
- Optionally call MCP
render_cowart_canvas_widget with projectDir = user workspace to confirm storage paths.
- Canvas data:
canvas/cowart-canvas.json
canvas/pages/<page-id>/cowart-canvas.json
canvas/pages/<page-id>/assets/
canvas/cowart-selection.json
canvas/cowart-view-state.json
- User draws/annotates in the panel. Agent uses MCP tools (
get_cowart_*, insert_cowart_image, …) for programmatic canvas IO. UI AI actions send follow-up prompts into the active conversation.
Image tools (when UI / user asks for bitmaps)
| Intent | Tool |
|---|
| New image | generate_image |
| Edit / annotation revise | edit_image |
Then place with MCP insert_cowart_image. Do not use an imagegen skill.
Constraints
- Never pass the plugin install directory as
projectDir.
- Prefer
open_cowart_canvas for the interactive UI; MCP tools remain available for agent-side canvas edits.