{"version":"2.1.305","anchor":"mcp-startup-skips-eager-tool-listing-for-some-plain-http-ser","canonical_anchor":"mcp-startup-skips-eager-tool-listing-for-some-plain-http-ser","heading":"Some HTTP MCP servers no longer have their tools listed at startup","tier":"notice","area":"MCP","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.305\/e\/mcp-startup-skips-eager-tool-listing-for-some-plain-http-ser","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.305","markdown":"### Some HTTP MCP servers no longer have their tools listed at startup\n\nClaude Code now skips listing tools and prompts up front for some plain HTTP MCP servers, as it already did for claude.ai proxy servers\n\n**Unclear.** It is not clear which HTTP servers are affected or whether this is active for ordinary users.\n\n**What**\n\nMCP servers are outside programs that give Claude Code extra tools and prompts. When it connects to one, Claude Code can ask straight away for the full list of what the server offers, or put that off until later. It used to skip the up-front listing only for claude.ai proxy servers that said they had tools or prompts. It now also skips it for some servers that connect over plain HTTP, depending on checks of the server's address and settings.\n\n**Why**\n\nThis changes which MCP servers have their tools and prompts fetched at startup, which could change how soon those tools appear.\n\n- Area: MCP\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}