claude-code - 💡(How to fix) Fix Code blocks in terminal output cause copy/paste issues [1 comments, 2 participants]

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anthropics/claude-code#48247Fetched 2026-04-15 06:29:03
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When Claude Code outputs a command in a code block for the user to copy/paste and run manually (e.g., a sudo command that cannot be run from within the session), the terminal rendering/formatting makes it difficult to cleanly copy the command. The user had to manually fix the copied text before it would run correctly.

Root Cause

When Claude Code outputs a command in a code block for the user to copy/paste and run manually (e.g., a sudo command that cannot be run from within the session), the terminal rendering/formatting makes it difficult to cleanly copy the command. The user had to manually fix the copied text before it would run correctly.

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Description

When Claude Code outputs a command in a code block for the user to copy/paste and run manually (e.g., a sudo command that cannot be run from within the session), the terminal rendering/formatting makes it difficult to cleanly copy the command. The user had to manually fix the copied text before it would run correctly.

Steps to Reproduce

  1. Claude Code outputs a command in a code block that the user needs to run manually
  2. User attempts to copy the command from the terminal output
  3. Pasted command includes formatting artifacts or does not paste cleanly

Expected Behavior

Commands displayed for manual execution should be easily and accurately copy/pasteable from the terminal.

Environment

  • Claude Code 2.1.87 (at time of issue)
  • macOS (Darwin 25.2.0)
  • Shell: bash

extent analysis

TL;DR

Improve the terminal rendering or formatting of code blocks in Claude Code to ensure clean copy/paste of commands.

Guidance

  • Investigate the terminal rendering settings in Claude Code to identify potential formatting issues that may be causing the problem.
  • Consider adding a feature to Claude Code to provide a "copy to clipboard" button for code blocks, allowing users to accurately copy commands without manual formatting issues.
  • Review the output formatting of code blocks in Claude Code to ensure that it is compatible with common terminal emulators and shells, such as bash.
  • Test the copy/paste functionality of code blocks in different environments and shells to identify any inconsistencies.

Example

No specific code snippet is provided as the issue is related to the rendering and formatting of code blocks in Claude Code.

Notes

The issue may be specific to certain terminal emulators or shells, and further investigation is needed to determine the root cause. Additionally, the issue may be resolved in future versions of Claude Code.

Recommendation

Apply workaround: Provide a "copy to clipboard" button for code blocks in Claude Code to ensure accurate copying of commands, as this is a more immediate solution than relying on terminal rendering fixes.

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claude-code - 💡(How to fix) Fix Code blocks in terminal output cause copy/paste issues [1 comments, 2 participants]