Claude Code v2.1.287: Skills Instruct. Mods Decide.

On October 1, 2026, Anthropic officially released Claude Mods for Claude Code v2.1.287 and later. This update allows users to customize their Coding Agent, moving beyond simple permission dialogs to a system where users decide how the agent operates. Previously a community proposal requiring special flags, Claude Mods is now fully available with official documentation, enabling the modification of the engine through interchangeable components to enhance the overall coding experience.