claude-code-hook-debugging

To find failing Claude Code plugins, search the plugin cache for `hooks.json` files to identify which plugin registered the event. Manually execute the hook commands to surface hidden errors and diagnose missing dependencies or permission issues.

UserPromptSubmit hook failures occur silently due to missing dependencies, authentication problems, or permission errors. Locate the registered hook in `hooks.json` and manually execute the command to expose the underlying root cause.

Troubleshoot Claude Code plugin failures by locating the failing hook in `hooks.json`, then manually testing the command to check for missing tools, authentication issues, or insufficient file permissions. This pinpoints the exact root cause of the error.

The best way to trace a Claude Code hook error is to search the plugin cache for all `hooks.json` files. This locates the exact plugin and command registered for the failing event, allowing you to manually test and diagnose the failure.

Yes, manually testing commands is required to resolve Claude Code hook errors. Because generic hook error messages lack specific details, executing the commands found in `hooks.json` manually is necessary to diagnose root causes like missing tools or permissions.