Opus 4 7 Articles

Claude Code 2.1.142: `claude agents` Gains Session Flags, Fast Mode Defaults to Opus 4.7, MCP Tool Timeout Honored

Claude Code 2.1.142 (May 14, 2026) added eight dispatch flags to `claude agents`, moved fast mode's default from Opus 4.6 to Opus 4.7, and made `MCP_TOOL_TIMEOUT` raise the 60-second per-request cap on remote MCP servers. As of September 2026 the flags and the timeout fix stand, but fast mode has left Opus 4.7: the default moved to Opus 4.8 in 2.1.154 and to Opus 5 in 2.1.219, and the 4.6 override variable is a no-op.