{"version":"2.1.267","anchor":"new-mcp-unavailable-error-message-variant","canonical_anchor":"new-mcp-unavailable-error-message-variant","heading":"New MCP-unavailable error message variant","tier":"notice","area":"MCP","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.267\/e\/new-mcp-unavailable-error-message-variant","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.267","markdown":"### New MCP-unavailable error message variant\n\nA new error message explains when an MCP server's tools can't be used this session\n\n**What**\n\nClaude Code now shows a distinct error message when a tool from an MCP server (a connector that lets Claude use external tools and data) isn't available for the current session: \"[server]'s MCP tools are not available in this session right now; [tool] did not run.\" This is separate from the existing message that suggests the server may have disconnected.\n\n**Why**\n\nThis gives a clearer, more specific explanation for a case where MCP tools simply aren't usable right now, rather than lumping it in with a message that implies a connection problem.\n\n- Area: MCP\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5"}