Claude Code v2.1.142: Opus 4.7 Fast Mode Default and Expanded Agents Flags
Anthropic
Claude Code v2.1.142 upgrades the fast mode default model from Opus 4.6 to Opus 4.7 and introduces new flags for the `claude agents` command: --add-dir, --settings, --mcp-config, --plugin-dir, --permission-mode, --model, --effort, and --dangerously-skip-permissions. Also fixes MCP_TOOL_TIMEOUT cap, background session worktree recognition, and a Windows network-drive deadlock.
Why it matters
Expanding `claude agents` flags gives power users fine-grained control over headless background sessions, enabling more robust multi-agent pipelines. The Opus 4.7 default in fast mode means higher-quality responses in latency-sensitive flows.
Importance: 2/5
Minor version update with meaningful new flags for agent automation