claudekit / updates / claude-code-2-1-183
[ PATCH · ]

Claude Code 2.1.183

Auto mode safety is tightened: destructive git commands (`git reset --hard`, `git clean -fd`, and more) and `terraform destroy`/`pulumi destroy`/`cdk destroy` are now blocked unless you asked to discard work or named the specific stack. A warning now flags deprecated or auto-updated models, an `attribution.sessionUrl` setting omits the claude.ai session link from commits and PRs, and `/config --help` lists the shorthand keys. Fixes land for `thinking.disabled.display` 400 errors on subagent spawns, WebSearch returning empty results in subagents, fullscreen TUI corruption in Windows Terminal, and background tasks being killed when a teammate finishes a turn.

Claude Code
Official announcement →

This article is a summary based on official documentation.

What changed

Claude Code 2.1.183 shipped on June 19, 2026. Auto mode gains safety guards that block destructive commands you didn’t ask for, alongside new settings for model deprecation warnings, attribution.sessionUrl, and /config --help. On top of that, a batch of bugs across subagents, teammates, MCP, and terminal rendering gets cleaned up.

New features

  • Warning for deprecated or auto-updated models

    There was no notice when the requested model was deprecated or automatically updated to a newer one. A warning is now shown on stderr in print mode (-p) and now also covers models set in agent frontmatter.

  • attribution.sessionUrl setting

    Commits and PRs from web and Remote Control sessions always carried the claude.ai session link. The new attribution.sessionUrl setting lets you omit that link.

  • /config --help

    It was hard to see which shorthand keys /config key=value accepts. /config --help lists all available shorthand keys.

Key improvements

  • Improved auto mode safety

    Auto mode could run operations you hadn’t asked for, risking the loss of local work. Destructive git commands (git reset --hard, git checkout -- ., git clean -fd, git stash drop) are now blocked when you didn’t ask to discard local work, git commit --amend is blocked when the commit wasn’t made by the agent this session, and terraform destroy/pulumi destroy/cdk destroy are blocked unless you asked for the specific stack.

  • Changed /config toggle behavior

    The keys for changing a setting in /config weren’t intuitive. Enter and Space both change the selected setting now, and Esc saves and closes instead of reverting.

  • Removed the startup “setup issues” line

    The “setup issues” line under the logo always showed and cluttered startup. It’s gone — run /doctor to see configuration issues or use --debug.

Bug fixes

Sessions & output

  • thinking.disabled.display 400 errors on subagent spawns — affected configurations failed subagent spawns and session-title generation with thinking.disabled.display: Extra inputs are not permitted. Fixed.
  • Turns silently completing with no visible output — when the model returned only a thinking block. Claude now re-prompts once.
  • WebSearch returning empty results in subagents — Fixed.

Subagents & teammates

  • tmux teammate panes failing to launch — when the shell has slow rc-file initialization, and keystrokes typed during agent spawn leaking into the new tmux pane instead of the leader prompt. Fixed.
  • Background tasks started by a teammate being killed — when the teammate finishes a turn. Fixed.
  • Scheduled task and webhook trigger deliveries being treated as keyboard input — they now classify as task notifications and can no longer approve a pending action or set the session title in auto mode.

MCP

  • MCP servers requiring authentication exposing auth-stub tools to the model — in headless/SDK mode. Fixed.

Display & rendering

  • Terminal cursor stranded above the prompt — after navigating history in vim mode with the native cursor enabled. Fixed.
  • Fullscreen TUI corruption in Windows Terminal — statusline mid-screen, duplicated spinner rows, merged text under heavy nested-subagent load. Fixed.
  • User-level skills appearing multiple times in slash-command autocomplete — when multiple plugins are enabled. Fixed.
  • Focus mode showing “Ran N PostToolUse hooks” timing lines — under each response. Fixed.

Notes

  • Auto mode blocks destructive commands — destructive git commands and terraform destroy/pulumi destroy/cdk destroy you didn’t explicitly ask for are blocked in auto mode. git commit --amend is allowed only for commits the agent made this session.
  • Model warnings show on stderr in print mode — deprecation and auto-update warnings appear on stderr in print mode (-p), and now cover models set in agent frontmatter.
  • Omit the session link from commits and PRs — the attribution.sessionUrl setting drops the claude.ai session link from commits and PRs in web and Remote Control sessions.
  • Check /config shorthand keys — run /config --help to list all shorthand keys for /config key=value.