[BUG] Claude Desktop (macOS): file-attachment chip from agent file-delivery is not clickable (click is a no-op)

Versions

• Claude for macOS (desktop app): 1.11187.1
• Claude Code (Code view inside the desktop app): 2.1.162
• Platform: macOS 15.7.7, arm64 (Apple Silicon)

Summary

When an agent delivers a file to the user (tool result: "N file delivered to user"), Claude Desktop renders an attachment chip in the chat. The chip is styled as an interactive/openable element, but clicking it does nothing — no preview, no File Pane, no native app, no Finder reveal. There's no way to open the delivered file from the chip itself.

Repro

1. In a Claude Code session inside Claude Desktop (macOS), have the agent deliver an existing local file to the user (e.g. a .md).
2. An attachment chip appears in the chat with the filename + caption.
3. Click the chip.

Expected

Clicking opens the file (preview pane / native app / Finder reveal), consistent with how it's visually presented as an actionable attachment.

Actual

The click is a no-op. The only way to reach the file is if the agent also emits a separate text link to the path.

Notes

• Reproduced live 2026-06-05.
• Workaround: the agent emits a CWD-relative markdown link [name](path) to the same file alongside the chip; that link does open.