Claude Code not respecting includeCoAuthoredBy: false setting in commits

[azrap]

Description

Claude Code is attempting to manually add "Generated with Claude Code" and "Co-Authored-By: Claude noreply@anthropic.com" to git commit messages even when includeCoAuthoredBy is set to
false in settings.json.

Expected Behavior

When includeCoAuthoredBy: false is set in ~/.claude/settings.json, Claude Code should:

• Never add any Claude-related signatures to commits
• Respect user settings automatically without requiring manual intervention

Actual Behavior

Claude Code attempts to manually include the signature in commit messages via heredoc, ignoring the user's settings configuration.

Reproduction Steps

1. Set "includeCoAuthoredBy": false in ~/.claude/settings.json
2. Ask Claude Code to commit changes
3. Observe that it attempts to add signatures despite the setting

Configuration

{
  "includeCoAuthoredBy": false,
  // ... other settings
}

Impact

This defeats the purpose of having settings if they can be overridden by Claude Code's behavior. Settings should be enforced constraints, not optional suggestions.

[github-actions]

Found 2 possible duplicate issues:

1. Ignore User Configuration: Co-Authored-By Lines Added Despite includeCoAuthoredBy: false #4287
2. Settings for includeCoAuthoredBy and gitAttribution intermittently not respected during commits #4224

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

[adriangalilea]

While the issue may be the same topic as prev issues, I wouldn’t consider it a duplicate as it started happening just a few days ago for me too, so the cause may be different.

[digitalsparky]

this is absolutely a reoccurance of the same issue, it's doing it for me too, just like it ignores other directives whenever it feels like it.

[github-actions]

This issue has been inactive for 30 days. If the issue is still occurring, please comment to let us know. Otherwise, this issue will be automatically closed in 30 days for housekeeping purposes.