Claude Code v2.1.290 Release Enhances Tooling and Agent ID Tracking

Core summary

One sentence to understand this update

Claude Code v2.1.290 adds `serverToolUses` to `turn.step` hook results, detailing tool calls, and includes `agentId` in the `tool.check` event for plugin handling.

Impact & opportunity

What this could mean

Developers using Claude can now access more detailed information on tool usage and agent identification, enabling better debugging and fine-tuning of AI agent interactions.