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Thursday 21 May — v2.1.146
16 changes / 4 actionable / 2 deep dives
Claude Code

TL;DR

  • /simplify is now /code-review with an effort dial. Run /code-review high for a thorough pass or /code-review for the default. Update any muscle memory or skill references that invoke /simplify.
  • Auto mode stopped swallowing AskUserQuestion when your skill needs it. If you have a skill or workflow that explicitly calls AskUserQuestion, auto mode will now surface it instead of silently skipping it.
  • MCP pagination was still broken for resources and prompts. resources/list, resources/templates/list, and prompts/list were dropping items past page 1 on paginating servers (more below).
  • CLAUDE_CODE_SUBAGENT_MODEL now actually propagates to child processes. If you set this env var for multi-agent sessions, children were silently ignoring it. Fixed.

New in 2.1.146

2.1.146 (May 21, 2026)

  • Renamed /simplify to /code-review with an optional effort level (e.g. /code-review high)
  • Auto mode no longer suppresses AskUserQuestion when the user or a skill explicitly relies on it
  • Fixed Windows PowerShell tool failing with "command line is invalid" when pwsh is installed via winget or the Microsoft Store (regression in v2.1.124)
  • Fixed MCP resources/list, resources/templates/list, and prompts/list dropping items past page 1 on paginating servers
  • Fixed full-screen strobing in attached background sessions on Windows Terminal while Claude is streaming
  • Fixed the auto-updater status line not showing your current version when an update fails
  • Fixed on Windows, removing a background-job worktree no longer follows NTFS junctions into the main repo
  • Fixed /background refusing sessions whose only typed input was a skill or custom slash command
  • Fixed backgrounded sessions re-prompting for tool permissions you already granted with "don't ask again"
  • Fixed /theme color editor and "New custom theme" dialogs not responding to Esc
  • Fixed an uncaught exception at the end of streaming sessions when running via the Agent SDK
  • Fixed forceLoginOrgUUID and forceLoginMethod managed-settings policies not being enforced against third-party-provider and API-key sessions
  • Fixed GNOME Terminal right-click and middle-click paste not inserting text
  • Fixed CLAUDE_CODE_SUBAGENT_MODEL not being forwarded to child processes in multi-agent sessions
  • Improved auto-updater reliability: native version checks and downloads now retry transient network failures instead of failing immediately
  • Improved diff rendering performance for large file edits

Notes

MCP pagination: the other half of the 2.1.144 fix

2.1.144 fixed tools/list silently dropping tools past the first page on paginating MCP servers. 2.1.146 patches the same bug in the three remaining paginated MCP endpoints: resources/list, resources/templates/list, and prompts/list. If you noticed resources or prompts missing from a paginating server after 2.1.144, this is the other shoe dropping.

Background session permission amnesia

Two fixes here clean up the /background experience. Sessions started via /bg or the left-arrow detach were re-prompting for tool permissions you had already granted with "don't ask again," and /background flat-out refused to run sessions whose only input was a skill or slash command. Both are fixed. Combined with the 2.1.143 fix for /bg preserving permission mode, background sessions should now behave consistently with their foreground originals.