{"type": "article", "title": "The MCP Tool List Grew Mid-Session and Your Agent Called a Tool It Had Never Been Told About", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/the-mcp-tool-list-grew-mid-session-and-your-agent-called-a-tool-it-had-never", "original_source": "https://tianpan.co/blog/2026-06-03-mcp-tool-list-grew-mid-session-hallucination", "published": "2026-06-03T00:00:00+00:00", "accessed": "2026-06-28", "id": "the-mcp-tool-list-grew-mid-session-and-your-agent-called-a-tool-it-had-never"}