{"version":"2.1.323","anchor":"unusable-schema-mcp-tools-are-listed-in-the-mcp-server-detai","canonical_anchor":"unusable-schema-mcp-tools-are-listed-in-the-mcp-server-detai","heading":"MCP server details now list tools Claude was not given, and why","tier":"notice","area":"MCP","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323\/e\/unusable-schema-mcp-tools-are-listed-in-the-mcp-server-detai","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323","markdown":"### MCP server details now list tools Claude was not given, and why\n\nThe MCP server detail view now names tools withheld from Claude because the Anthropic API would reject their input format\n\n**What**\n\nMCP servers are add-ons that give Claude extra tools. Each tool describes the input it expects, and the Anthropic API rejects some of those descriptions. Tools like that are not given to Claude. The detail view for an MCP server now has a panel for them:\n\n- It says how many tools Claude was not given, and why.\n\n- It names each one.\n\n- It tells you to choose Reconnect once the server is fixed.\n\nIf the list is long, it is cut short to fit your terminal window.\n\n**Why**\n\nBefore, these tools just did not appear and nothing explained why. Now you can see which ones are missing and what to do once the server is fixed.\n\n- Area: MCP\n- Tier: You'll notice\n- Useful: 3\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}