{"version":"2.1.280","anchor":"ui-uri-scheme-constant-introduced","canonical_anchor":"ui-uri-scheme-constant-introduced","heading":"'ui:\/\/' URI scheme constant introduced","tier":"internal","area":"MCP","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/ui-uri-scheme-constant-introduced","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### 'ui:\/\/' URI scheme constant introduced\n\nA new 'ui:\/\/' URI scheme constant appeared, likely for MCP UI resources\n\n**Unclear.** What the 'ui:\/\/' scheme is used for and what feature it belongs to is not established by the evidence.\n\n**What**\n\nA constant that previously held the version string \"0.4.10\" now holds the string \"ui:\/\/\", alongside a new companion constant \"ui\/resourceUri\". This suggests a new URI scheme for referencing UI-related resources in MCP (Model Context Protocol, the standard Claude Code uses to talk to external tool servers).\n\n**Why**\n\nThe evidence does not say what feature this scheme supports, only that the constant now exists.\n\n- Area: MCP\n- Names: `ui:\/\/`\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 3\/5"}