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claude-code

v2.1.186 Feature

This release adds 5 notable features for engineering teams evaluating rollout.

✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Affected surfaces

auth breaking_upgrade

Summary

AI summary

Added CLI MCP login/logout commands and multiple UI/UX fixes across agents, workflows, plugins, and theming.

Full changelog

What's changed

  • Added claude mcp login <name> and claude mcp logout <name> to authenticate MCP servers from the CLI without opening the interactive /mcp menu, with --no-browser stdin redirect support for completing over SSH
  • Added status filtering (press f) to the /workflows agent detail view
  • Added a "Skills" section to the /plugin Installed tab
  • Added teammateMode: "iterm2" setting with a warning when auto mode cannot find the it2 CLI
  • Added "Claude Platform on AWS - refresh credentials" option to /login when awsAuthRefresh is configured
  • ! bash commands now trigger Claude to respond to the output automatically; set "respondToBashCommands": false in settings.json to keep the previous context-only behavior
  • Fixed streaming requests failing with "Content block not found" or JSON parse errors after the machine wakes from sleep
  • Fixed subagent transcript scroll position bleeding into the main transcript on exit
  • Fixed background task previews flashing raw tool names before the agent's plan loaded
  • Fixed Chrome tab-group isolation not applying when the in-product permissions gate is off for concurrent CLI sessions
  • Fixed background session recaps being duplicated; the agent's own end-of-turn summary now shows as the recap line
  • Fixed opening a background session from claude agents leaving the previous screen painted behind it
  • Fixed Agent(type) deny rules and Agent(x,y) allowed-types restrictions not being enforced for named subagent spawns
  • Fixed Esc and Ctrl+C not responding while background agents are still running after the main turn ends
  • Fixed misaligned option numbers in permission prompts when the option text overflows
  • Fixed pressing x on a finished subagent in the agent panel not dismissing it
  • Fixed a misleading "MCP server disconnected" notice for intentionally retired tools when resuming older sessions
  • Fixed /plugin Installed showing a "more above" indicator when already scrolled to the top
  • Fixed ~~strikethrough~~ showing literal tildes in assistant messages instead of rendering as strikethrough
  • Fixed --tools allowing feature-gated tools to slip through before flags loaded on a cold first launch
  • Fixed background job status in claude agents showing a stale "needs input" message after replying
  • Fixed a dark-theme flash when opening a background session from claude agents on a light terminal
  • Fixed mouse-selected text staying highlighted after deleting it in claude agents
  • Fixed session cost not showing for usage-based Enterprise and Team subscribers
  • Fixed agent teams: teammates spawned via tmux/pane backends now inherit the leader's --effort level
  • Fixed Workflow agent({schema}) subagents looping forever on repeated schema validation failures instead of aborting after 5 attempts
  • Improved claude mcp get and claude mcp remove to suggest the closest configured server name on a typo and truncate long server lists
  • Improved memory: the agent is now reminded to compact its MEMORY.md index when nearing the size limit
  • Improved skill frontmatter: display-name, default-enabled, fallback, and metadata.* keys now accept kebab-case, snake_case, and camelCase
  • Improved malformed SKILL.md YAML frontmatter handling: loads the skill body with empty metadata instead of failing silently
  • Changed CLAUDE_CODE_MAX_RETRIES to cap at 15; for unattended sessions, use CLAUDE_CODE_RETRY_WATCHDOG instead
  • Changed background subagents to surface permission prompts in the main session instead of auto-denying; the dialog shows which agent is asking, and Esc denies just that tool
  • Changed /review <pr> to use the same review engine as /code-review medium

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Related context

Earlier breaking changes

  • v2.1.215 Claude no longer automatically runs /verify and /code-review skills
  • v2.1.160 Renames dynamic‑workflow trigger keyword from `workflow` to `ultracode`; `workflow` no longer triggers a run
  • v2.1.160 Deprecates and removes the `CLAUDE_CODE_OPUS_4_6_FAST_MODE_OVERRIDE` environment variable; it is now a no‑op
  • v2.1.147 Renames /simplify to /code-review; removes cleanup-and-fix behavior.

Beta — feedback welcome: [email protected]