asset_add_file MCP tool (Adobe connector) — file picker doesn't open in Claude Code desktop app (macOS)

Describe the bug

The Adobe Creative Cloud MCP tool asset_add_file is supposed to open a file picker so users can select images from their Lightroom/Creative Cloud library. When called from Claude Code desktop app on macOS, the tool returns a job_id with job_status: pending but no file picker ever appears. Polling asset_add_file_check_status stays permanently in pending state.

Steps to reproduce

1. Connect the Adobe Creative Cloud MCP in Claude Code desktop (macOS)
2. Ask Claude to edit a Lightroom photo
3. Claude calls asset_add_file — job returns pending, no picker opens

Expected behaviour

A file picker opens so the user can select a photo from their Adobe library.

Workaround

Share a specific photo from Lightroom web/mobile → paste the share link into chat → Claude can extract a working image URL and edit it.

Environment

• Claude Code desktop, macOS
• Adobe Creative Cloud MCP connected

Additional context

The editing tools themselves work fine once a valid image URL is provided. The gap is specifically the file selection step — asset_add_file appears to render a web UI widget that doesn't surface in the Claude Code desktop app. A non-picker fallback (e.g. get_presigned_url_by_asset_id) from Adobe's side would also resolve this.