Project chat canvas links open `source.canvas.tsx` as a file instead of the live canvas

[jburri (Josh)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

The canvas link in the chat opened the canvas source file in a normal editor tab:

User Context/canvases/<uuid>/source.canvas.tsx

I see the source, not the rendered canvas.

Steps to Reproduce

1. Open a Project conversation (cloud coordinator).
2. Ask for a diagram as a canvas (git/rebase walkthrough).
3. Agent writes a canvas under the user store and replies with a markdown link to /cursor/stores/user/canvases/<uuid>/source.canvas.tsx.
4. Click that link in the Project chat.

Expected Behavior

Clicking a canvas link from a Project conversation should open the live canvas beside the chat (the compiled React view).

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 3.20.21
VS Code Extension API: 1.128.0
Commit: f09fca384ceca23f7bf21f9c23655b162641d740
Date: 2026-09-13T19:02:51.781Z
Layout: Agent Window
Build Type: Stable
Release Track: Nightly
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Darwin arm64 27.0.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[Colin]

Hey @jburri, thanks for the report, and for the clear repro.

You’ve found a real gap: Project (cloud) agents can save a canvas into your user context, but the Agents window doesn’t yet render canvases that live there, so the link falls back to opening the source file. The team is aware and it’s tracked; I’ve added your report.

In the meantime, canvases made by a regular (non-Project) agent on your local workspace render normally. If you want to keep the one the Project made, open a normal agent chat in the same workspace and ask it to recreate that diagram as a canvas (you can paste the source it produced). Opening from the + button, then Canvas, then Recent also works for local canvases.

I’ll keep this thread updated!