prompts/ and runs/ move by git mv; zero padding dropped; the arbitration and LLM-merge rows in the cost ledger carry no new name -- their step column reads 已廢棄 with the original name kept in a new last column. Archived meta.json files and past decision-log entries keep the names they were written with. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>