XHIGH

Claude Code xhigh Effort Level Guide — Go Deeper on Agentic Work with Opus 4.7

Claude Code introduced the xhigh effort level in its May 2026 update — an Opus 4.7-exclusive setting that sits between high and max, giving developers finer control over reasoning depth. Combined with PowerShell support for Windows (no Git Bash required), the new ultrareview CI automation command, and MCP auto-retry on failure, this update is a significant upgrade for agentic workflows.