[Release] anthropics/claude-code v2.1.146: v2.1.146

Claude Code v2.1.146 introduces a command rename from `/simplify` to `/code-review` with effort levels, fixes critical regressions in Windows PowerShell and MCP pagination, and resolves multiple UI/UX issues including full-screen strobing, permission re-prompting, and auto-updater reliability. The release also improves diff rendering performance and fixes several edge cases in background sessions, theme management, and multi-agent configurations.

Key Points

• •Renamed `/simplify` command to `/code-review` with optional effort level parameter (e.g., `/code-review high`) for better clarity
• •Auto mode now respects explicit `AskUserQuestion` calls from users or skills instead of suppressing them
• •Fixed Windows PowerShell tool regression (v2.1.124) where winget/Microsoft Store installations failed with 'command line is invalid' error
• •Resolved MCP pagination bug where `resources/list`, `resources/templates/list`, and `prompts/list` dropped items beyond page 1
• •Eliminated full-screen strobing in Windows Terminal background sessions during Claude streaming output
• •Fixed auto-updater to display current version when updates fail and improved retry logic for transient network failures
• •Corrected background session behavior: removed NTFS junction following on Windows and fixed permission re-prompting for previously granted tool access
• •Fixed `/background` command rejecting sessions with only skill/custom slash command input
• •Resolved theme editor and dialog responsiveness issues with Escape key handling
• •Fixed `CLAUDE_CODE_SUBAGENT_MODEL` environment variable forwarding in multi-agent sessions and improved diff rendering performance for large edits

Workflow Diagram

Concepts