Claude Code v2.1.146: /simplify Renamed to /code-review with Configurable Effort Levels for On-Demand Code Quality Audits
Claude Code Docs·medium signal
Claude Code's /simplify slash command was renamed to /code-review and now accepts an effort parameter (e.g., /code-review high) to control review depth. This transforms ad-hoc code simplification into a structured quality gate developers can invoke at any granularity before committing, directly inside the terminal without switching tools.