claude-code - 💡(How to fix) Fix EACCES on /tmp/claude-settings-<hash>.json when another user created it first [1 participants]

Error processing settings: EACCES: permission denied, open '/tmp/claude-settings-<hash>.json'

TL;DR

The most likely fix is to modify Claude Code to use a per-user temporary directory, such as $TMPDIR, instead of the hardcoded /tmp path.

Guidance

• Investigate using the $TMPDIR environment variable, which is already per-user on macOS, to store the claude-settings-<hash>.json file.
• Consider including the user's UID in the filename to prevent collisions between users.
• Verify that the issue is resolved by running claude as multiple users in the same working directory and checking for the presence of the settings file in the expected location.
• To mitigate the issue in the short term, users can manually delete the conflicting file using sudo rm /tmp/claude-settings-<hash>.json, but this is not a scalable solution.

Example

No code snippet is provided as the issue does not contain sufficient information about the Claude Code implementation.

Notes

The hardcoded /tmp path is the primary cause of the issue, and modifying it to use a per-user directory will likely resolve the problem. However, the exact implementation details of Claude Code are not provided, so the solution may require additional modifications.

Recommendation

Apply a workaround by modifying the Claude Code to use a per-user temporary directory, such as $TMPDIR, to store the settings file. This will prevent collisions between users and resolve the permission denied error.