{"version":"2.1.284","anchor":"mcp-step-up-re-auth-tells-the-user-a-browser-is-opening","canonical_anchor":"mcp-step-up-re-auth-tells-the-user-a-browser-is-opening","heading":"Claude Code tells you when an MCP server opens your browser to sign in again","tier":"notice","area":"MCP","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.284\/e\/mcp-step-up-re-auth-tells-the-user-a-browser-is-opening","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.284","markdown":"### Claude Code tells you when an MCP server opens your browser to sign in again\n\nWhen an MCP server asks you to sign in again for more access, a message now says the browser is opening and how to get the link\n\n**What**\n\nAn MCP server is an outside tool or service that Claude Code connects to. Some ask you to sign in again partway through, to grant more access than you gave at first. When that happens, a message in the session now says your browser is opening. It shows the sign-in link when that is safe to display. Otherwise it tells you to run `\/mcp` if the browser does not open, because the sign-in screen there shows the link. The message is not saved with the conversation. Before, the link only went to the debug log.\n\n**Why**\n\nThe browser window used to pop up with no explanation in the session.\n\n- Area: MCP\n- Names: `\/mcp`\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5"}