I spent a morning hunting for a setting that did not exist. A while back I turned off Claude's co-authorship trailer in my commits — a deliberate choice at the time. Last week I decided I wanted it back. So I went looking for the switch I'd flipped. ~/.claude/settings.json : no key. settings.local.json : no key. ~/.claude.json , parsed as JSON, top-level plus all 38 project entries : no key. The 27 .claude/settings*.json files scattered across my two working drives: no key. Every CLA...