Drag-and-drop image attachment fails when filename contains parentheses #17075

Description

Dragging and dropping an image into the chat fails silently when the filename contains parentheses.

Example filename that fails: image (1).png

Filenames without parentheses (e.g. screenshot.png) attach correctly via drag-and-drop.

Plugins

oh-my-opencode

OpenCode version

1.2.24

Steps to reproduce

1. Download or save any image so that macOS appends a number in parentheses to the filename (e.g. image (1).png)
2. Open OpenCode in Ghostty terminal
3. Drag and drop the file into the chat input
4. Observe: the image is not attached / nothing happens
5. Rename the same file to remove parentheses (e.g. image1.png)
6. Drag and drop again
7. Observe: the image attaches successfully

Screenshot and/or share link

Operating System

macOS 26.2

Terminal

Ghostty