Allow reloading permissions/settings in a running session

Feature Request

After editing ~/.claude/settings.json (or project-level settings), there is no way to reload the updated permissions in an already-running Claude Code session. The only option is to exit and restart the session.

Desired Behavior

A command like /reload or /refresh that re-reads settings files from disk and applies updated permission rules to the current session without requiring a restart.

Why This Matters

When iterating on permission configurations (e.g., adding allowed/denied Bash commands), having to restart every open session is disruptive — especially when running multiple sessions simultaneously.

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