Drag-and-drop of a file with '?' in its name inserts a percent-encoded path that the Read tool cannot resolve (Desktop)

Description

In OpenCode Desktop, dragging a file whose name contains URL-reserved characters (e.g. ?) into the prompt inserts a mention with a percent-encoded path (%3F). The resolution never decodes it: the Read tool receives the encoded path and fails with "File not found" even though the file exists.

Likely root cause: encodeFilePath in packages/app/src/context/file/path.ts (introduced by #12424) percent-encodes path segments, but mention resolution does not decode them back before calling tools.

Plugins

none

OpenCode version

1.18.13

Steps to reproduce

1. Create a file named ???.png on the Desktop (/home/carole/Bureau/???.png).
2. In OpenCode Desktop, drag the file from the file manager into the prompt input.
3. The inserted mention is @///home/carole/Bureau/%3F%3F%3F.png (percent-encoded, with an extra leading slash).
4. Send a prompt such as "describe this image".
5. The Read tool is invoked with filePath: "///home/carole/Bureau/%3F%3F%3F.png" and fails: File not found.

Expected

The mention should resolve to the real filesystem path /home/carole/Bureau/???.png (percent-decoded, without the extra slash) so the file can be read.

Operating System

Debian (Linux)

Terminal

OpenCode Desktop

Related

• #12424 (origin of the encoding)
• #17488 (drag-dropped images lose their absolute path)
• #18410 (percent-encoded names resolve to the wrong file)
• #15561 (percent-encoded file URIs shown encoded)
• #31939 (feature: drag-and-drop should reference files by path)