lab Claude Code Releases · 1h ago · agents

Claude Code v2.1.292 adds agent effort parameter and marketplace plugin install

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Anthropic released Claude Code v2.1.292, introducing new capabilities for agent configuration and plugin management alongside numerous bug fixes and security patches.

Added an `effort` parameter to the Agent tool, allowing users to specify the effort level for sub-agents.
Added `--marketplace <source>` support to `claude plugin install` to fetch plugins from specific marketplaces.
Fixed a security vulnerability where PreToolUse hook approvals and auto mode could bypass permission prompts for file reads from network (UNC) paths.
Improved startup performance by removing the wait for HTTP and SSE MCP servers during the first turn of `claude -p` and SDK sessions.
Changed local MCP server connections to negotiate protocol version 2026-07-28 by default, with an option to opt out via environment variable.

Importance 1/3 Trust 2/3 Claude Code Releases Anthropic AI agents Code generation

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