Claude Code v2.1.287 Adds "Claude Mods" for Deeper Plugin Behavior and AI Guardian

Core summary

One sentence to understand this update

Claude Code v2.1.287 introduces "Claude Mods" allowing deeper plugin behavior modification and a "You should know" feature where a side agent flags potential misses.

Impact & opportunity

What this could mean

Builders can create more powerful and integrated tools for Claude Code agents and benefit from an AI "safety net" for task execution.