Right-click context menu missing 'Copy' for highlighted text selection

Summary

In the Claude Code CLI's chat UI, right-clicking on highlighted/selected text in the conversation history no longer shows a basic Copy option. The context menu only offers Claude-Code-specific actions, leaving no obvious way to copy a subset of a message via the right-click menu.

This appears to be a regression — previously selecting text and right-clicking would surface the OS-level Copy alongside (or instead of) the Claude-specific actions.

Steps to reproduce

1. In an active Claude Code chat session, highlight a portion of text in a message (assistant's output, ideally — but applies to user messages too).
2. Right-click on the highlighted text.

Actual behavior

Context menu shows only:

• Copy message
• Copy as Markdown
• Attach selection as context
• Pin as chapter

No plain "Copy" / "Copy selection" / "Copy highlighted text" option.

Result: to copy a subset of a message, the user must either copy the entire message and paste-then-trim elsewhere, or use Cmd-C after a manual selection (which works, but contradicts the affordance the right-click menu implies — selecting text + right-clicking is a near-universal copy gesture).

Expected behavior

Selecting text + right-clicking should surface a basic Copy option that copies only the highlighted selection to the clipboard — alongside the Claude-Code-specific actions (which are useful and should remain).

This matches behavior in essentially every other macOS app and was, per user report, previously present in Claude Code itself.

Environment

• Claude Code: 2.1.141
• OS: macOS 26.5 (build 25F71)
• Apple Silicon Mac

Workarounds

• Triple-click to select a full line, then Cmd-C
• Highlight + Cmd-C (works but contradicts the right-click affordance)