release aidev BREAKING SIG 4/5

Claude Code 2.1.186: CLI MCP auth, `!` bash output now answered by default, retry cap

MCP servers can now be authenticated from the CLI without the interactive menu, including over SSH. Two default-behavior changes to watch: ! bash commands now automatically trigger a model response, and CLAUDE_CODE_MAX_RETRIES is capped at 15. Also fixes Agent deny rules and allowed-types restrictions not being enforced on named subagent spawns.

PUBLISHED2026-06-22
OBSERVED2026-08-11
AGE1mo
SOURCES1
  • claude mcp login <name> / claude mcp logout <name> authenticate MCP servers from the CLI; --no-browser stdin redirect supports completing over SSH
  • Behavior change: ! bash commands now trigger a model response to the output — set "respondToBashCommands": false for the previous context-only behavior
  • Changed: CLAUDE_CODE_MAX_RETRIES capped at 15; use CLAUDE_CODE_RETRY_WATCHDOG for unattended sessions
  • Changed: background subagents surface permission prompts in the main session instead of auto-denying; the dialog names the asking agent, Esc denies that tool only
  • Changed: /review <pr> uses the same engine as /code-review medium
  • Fix: Agent(type) deny rules and Agent(x,y) allowed-types restrictions not enforced for named subagent spawns
  • Fix: streaming requests failing with "Content block not found" or JSON parse errors after wake from sleep
  • Fix: Workflow agent({schema}) subagents looping forever on repeated schema validation failures — now aborts after 5 attempts
  • Fix: --tools letting feature-gated tools through on a cold first launch
  • Fix: session cost not showing for usage-based Enterprise and Team subscribers
  • Fix: tmux/pane teammates not inheriting the leader's --effort
  • New: status filtering (f) in /workflows agent detail; "Skills" section in /plugin Installed; teammateMode: "iterm2"; AWS credential refresh option in /login
  • Improved: skill frontmatter accepts kebab-case, snake_case, and camelCase for display-name, default-enabled, fallback, metadata.*; malformed SKILL.md YAML loads the body with empty metadata instead of failing silently
  • Improved: memory compaction reminder when MEMORY.md nears the size limit
  • Numerous claude agents and agent-panel fixes
featurebreakingfixsecurity

COMMUNITY

No curated reactions recorded for this event. Facts and takes are kept in separate layers — community context is added by hand, never blended into the record above.