UI feedback for Cursor, without the essay

Cursor Design Mode and in-editor context help for web surfaces. Native apps, dense dashboards, and multi-monitor layouts still turn into long chat descriptions. You need a system-wide way to point at pixels.

1. Open Casso over the broken UI (browser, Electron app, design preview, or production).
2. Box the misaligned control, bad spacing, or wrong state. Numbering is automatic.
3. Send to capture the annotated overview and prompt.
4. Paste into Cursor chat or your CLI agent with the image reference.

• Works outside the IDE - annotate anything on screen, not only the editor canvas.
• Same workflow if you switch between Cursor, Claude Code, and Codex.
• Local sessions under a temp path; no cloud model in the middle.
• One license covers Mac now and Windows when that build ships.
• 7-day free trial, then $29 one-time personal license - not a subscription.

Use Casso when the bug lives outside a tidy embedded preview: Electron shells, multi-monitor design reviews, staging on a second display, or native settings panes. Mark every distinct issue, then constrain the agent: "Fix only the numbered regions. No refactors."

If you already use Cursor chat with images, Casso improves the handoff quality, not the model. Numbers and notes reduce wrong-element edits on dense dashboards with look-alike controls.