[Bug] Cmd+click file paths not opening in fullscreen TUI on Warp (macOS)

Bug Description
Title: Cmd+click opens URLs but not file paths in fullscreen TUI (Warp, macOS) Environment - Claude Code 2.1.220, tui = fullscreen - Warp v0.2026.07.22, macOS 25.5.0 (Darwin), TERM_PROGRAM=WarpTerminal - No CLAUDE_CODE_NO_FLICKER, CLAUDE_CODE_DISABLE_MOUSE, or CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN set Behaviour Cmd+click on https:// URLs works — they open in the browser. Cmd+click on file paths does nothing. Plain click doesn't open file paths either, despite the docs stating that as of v2.1.198 Claude Code detects Warp on macOS and lets a plain click open a link. Since URLs open correctly, mouse capture and click dispatch are working; the failure is specific to file-path links. Expected: per the fullscreen docs, Cmd+click on a file path in tool output opens it in the default application. Actual: nothing happens. No highlight, no app launch. Ruled out — these were all checked and are not the cause: - Warp's external editor setting (code.editor.open_file_editor = { external_editor = "cursor" }, set and valid; an absolute path is rejected by the enum) - cursor resolvable on PATH — /Applications/Cursor.app/Contents/Resources/app/bin/cursor works from the shell and opens files - Stale Warp process — Warp relaunched after the settings write - Warp's own path detection is irrelevant here, since fullscreen mode captures the mouse --- Add one line before sending: whether Cmd+click worked on the path in that Write tool result. If it did open, the bug is narrower — only prose paths fail, which matches the documented design and is a feature request (#13008 (https://github.com/anthropics/claude-code/issues/13008), #48652 (https://github.com/anthropics/claude-code/issues/48652) both ask for OSC 8 hyperlinks) rather than a bug. Sources: Fullscreen rendering docs (https://code.claude.com/docs/en/fullscreen), claude-code #13008 (https://github.com/anthropics/claude-code/issues/13008), claude-code #48652 (https://github.com/anthropics/claude-code/issues/48652), claude-code #54606 (https://github.com/anthropics/claude-code/issues/54606), warp #14128 (https://github.com/warpdotdev/warp/issues/14128)

Environment Info

• Platform: darwin
• Terminal: WarpTerminal
• Version: 2.1.220
• Feedback ID: 798fe1c2-41af-4266-ad3f-d55f1a03d9b4

Errors

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