2 pages for claude_code_max_mcp_description_length.
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Environment variables
Claude Code CLI · in the page
env-vars
…| | `CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH` | Maximum length in characters of each MCP tool description and each MCP se…
Connect Claude Code to tools via MCP
Claude Code CLI · in the page
mcp
…,096 and 16,384 characters for the MCP servers in your session, set [`CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH`](https://code.claude.com/docs/en/env-vars#variables) to a number of characters. Claude Cod…