Reproduction steps

1. Create or open a file with a non-ASCII name
2. Open the Agent panel
3. Mention the file in the input field
4. Send the message

Current vs. Expected behavior

Expected behavior

The file name remains human-readable both:

• while composing the message, and
• after the message is sent and rendered in the thread.

Actual behavior

• In the input field, the filename is displayed correctly
• After sending the message, the filename is displayed URL-encoded in the thread

The input field and the rendered thread are referring to the same file.

Zed version and system specs

Zed: 0.216.1
OS: macOS 26.0.1
Memory: 16 GB
Chip: Apple M1

Attach Zed log file

No response

Relevant Zed settings

No response

Relevant Keymap

No response

(for AI issues) Model provider details

No response

If you are using WSL on Windows, what flavor of Linux are you using?

None