GitHub Issue Report: Claude Code Attribution Defaults

Repository: anthropics/claude-code
Issue Number: #66504
Status: ~~Open~~ Closed
Date Opened: June 9, 2026
Author: joka-7

📌 Overview

The user joka-7 has raised a feature request regarding the way Claude Code handles attribution in version control. Currently, the tool automatically appends a session URL to every pull request (PR) description and commit message. The core argument is that this behavior should be ~~mandatory~~ opt-in rather than the default.

🛠 Preflight Checklist

Existing requests searched; no duplicate found.
Request is limited to a single feature.

🚨 The Problem Statement

When utilizing Claude Code, the system silently attaches a session link (e.g., https://claude.ai/code/session...) to the end of git metadata.

"Users only discover it after it's already polluting their git history."

Key Pain Points:

Lack of Transparency: No warning is given during the onboarding process.
No Consent: There is no initial prompt asking the user if they want this feature.
Professionalism: In a collaborative or open-source environment, these URLs can appear cluttered and unprofessional to teammates.

📉 Impact Analysis

We can represent the "History Noise" ( $N$ ) as a function of the number of commits ( $c$ ) and the length of the appended URL ( $l$ ):

$N = \sum_{i=1}^{c} (l_i)$

As $c$ increases, the total noise $N$ grows linearly, leading to a degraded developer experience.

💡 Proposed Solutions

The author suggests several paths forward to resolve this UX friction:

Primary Recommendation

Implement a one-time onboarding prompt.

Example: "Would you like to include a link back to this Claude session in commit messages?"

Alternative Approaches

Option	Description	Pros/Cons
Discoverable Opt-out	Show a "Don't add this again" toggle during the first commit.	$\text{Fast to implement} \mid \text{Still adds one bad commit}$
Full Removal	Delete the URL entirely; keep only the `Co-Authored-By: Claude` trailer.	$\text{Cleanest history} \mid \text{Loss of session traceability}$

🔄 Workflow Visualization

🔍 Additional Technical Context

Current Workarounds

While the feature is currently enabled by default, there are two ways to stop it, though both are suboptimal:

Configuration File: Users can modify the .claude/settings.json file by adding: attribution.commit: "" (Note: This setting is largely undiscovered by the general user base).
Git Hooks: A commit-msg hook can be written to strip the URL.
- Issue: These hooks are often unreliable in cloud-based or remote development environments.

Use Case Example

Imagine a developer building a new feature. They commit their work and open a PR. Their colleagues see: Fixed the memory leak in the auth module. https://claude.ai/code/session_xyz123

The developer was unaware the link was being added, and the team now views the commit history as cluttered.

📋 Metadata Summary

Priority: Medium (Would be very helpful)
Category: Other / User-Experience
Labels: enhancement, New feature or request, user-experience
Assignees: None

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