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Claude Code 2.1.290

UpdateyesterdayUnverifiedAdded Oct 6, 2026

- Added serverToolUses to the result of a mod's turn.step hook: the tool calls the API ran itself (the advisor), each with its id, name, input, start and end Added agentId to the tool.check event of plugin hooks, so a hook can tell a subagent's permission check from the main session's Added ceiling to the question and verdict a mod's tool.check hook reads...

Topics: AI agents, LLMs, Security, Observability, Developer tools

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Also shipped on Oct 5, 2026

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