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Claude Code v2.1.121: Instant MCP Tools and Tool-Output Hooks - The Claude Code Changelog | Wave AI Podcast Notes

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Claude Code v2.1.121: Instant MCP Tools and Tool-Output Hooks - The Claude Code Changelog cover

Claude Code v2.1.121: Instant MCP Tools and Tool-Output Hooks

The Claude Code Changelog

Wed Apr 29 2026

This episode digs into two major v2.1.121 changes in Claude Code: the alwaysLoad flag for loading selected MCP server tools at session start, and a widened PostToolUse hook that can rewrite outputs from built-in tools like bash and file reads. It also cov

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