{"version":"2.1.248","anchor":"mcp-timeout-and-two-new-connection-batch-size-settings","canonical_anchor":"mcp-timeout-and-two-new-connection-batch-size-settings","heading":"MCP timeout and two new connection batch-size settings","tier":"use","area":"MCP","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248\/e\/mcp-timeout-and-two-new-connection-batch-size-settings","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248","markdown":"### MCP timeout and two new connection batch-size settings\n\nTwo new env vars set how many MCP servers connect at once, local and remote.\n\n**What**\n\n`MCP_TOOL_TIMEOUT` is now read through the central environment reader rather than parsed inline, and two new environment variables control how many MCP servers are connected at once: `MCP_SERVER_CONNECTION_BATCH_SIZE` (default 3) and `MCP_REMOTE_SERVER_CONNECTION_BATCH_SIZE` (default 20).\n\n**Details**\n\n- The old inline parse required a value greater than zero; both tool-timeout helpers now share the one source.\n- Raise the remote batch size if you have many remote MCP servers and startup connection is slow.\n\n**Usage**\n\n`MCP_REMOTE_SERVER_CONNECTION_BATCH_SIZE=40 claude` **Evidence** `MCP_REMOTE_SERVER_CONNECTION_BATCH_SIZE`\n\n- Area: MCP\n- Names: `MCP_SERVER_CONNECTION_BATCH_SIZE`, `MCP_REMOTE_SERVER_CONNECTION_BATCH_SIZE`, `MCP_TOOL_TIMEOUT`\n- Tier: Use it now\n- Useful: 4\/5\n- Signal: 3\/5"}