{"version":"2.1.248","anchor":"mcp-authentication-tools-are-flagged-as-stubs","canonical_anchor":"mcp-authentication-tools-are-flagged-as-stubs","heading":"MCP authentication tools are flagged as stubs","tier":"notice","area":"MCP","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248\/e\/mcp-authentication-tools-are-flagged-as-stubs","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248","markdown":"### MCP authentication tools are flagged as stubs\n\nMCP auth tools are marked as stubs and confirm with the tools actually available.\n\n**What**\n\nThe per-server `complete_authentication` tool generated for MCP servers is now tagged `isAuthStub` in its metadata, so callers can tell it apart from the server's real tools. On success it now builds its confirmation message from the server name plus the tools actually available, instead of the old fixed line claiming the server's tools should now be available.\n\n**Evidence**\n\n`isAuthStub`\n\n- Area: MCP\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5"}