		@@ -1,2 +0,2 @@
		import{CallToolRequestSchema as yQ,CallToolResultSchema as kQ,ListPromptsRequestSchema as fQ,ListPromptsResultSchema as dQ,ListResourcesRequestSchema as bQ,ListResourcesResultSchema as xQ,ListResourceTemplatesRequestSchema as uQ,ListResourceTemplatesResultSchema as hQ,LoggingMessageNotificationSchema as mQ,PingRequestSchema as pQ,PromptListChangedNotificationSchema as cQ,ReadResourceRequestSchema as nQ,ReadResourceResultSchema as iQ,ResourceListChangedNotificationSchema as lQ,ToolListChangedNotificationSchema as rQ}from"@modelcontextprotocol/sdk/types.js";import{Protocol as oQ}from"@modelcontextprotocol/sdk/shared/protocol.js";var G="2026-01-26",s="ui/open-link",e="ui/download-file",QQ="ui/message",XQ="ui/notifications/sandbox-proxy-ready",YQ="ui/notifications/sandbox-resource-ready",ZQ="ui/notifications/size-changed",$Q="ui/notifications/tool-input",_="ui/notifications/tool-input-partial",JQ="ui/notifications/tool-result",KQ="ui/notifications/tool-cancelled",GQ="ui/notifications/host-context-changed",DQ="ui/notifications/request-teardown",NQ="ui/resource-teardown",jQ="ui/initialize",EQ="ui/notifications/initialized",WQ="ui/request-display-mode";import{z as Q}from"zod/v4";import{ContentBlockSchema as h,CallToolResultSchema as zQ,EmbeddedResourceSchema as BQ,ImplementationSchema as m,RequestIdSchema as _Q,ResourceLinkSchema as OQ,ToolSchema as VQ}from"@modelcontextprotocol/sdk/types.js";var p=Q.union([Q.literal("light"),Q.literal("dark")]).describe("Color theme preference for the host environment."),D=Q.union([Q.literal("inline"),Q.literal("fullscreen"),Q.literal("pip")]).describe("Display mode for UI presentation."),IQ=Q.union([Q.literal("--color-background-primary"),Q.literal("--color-background-secondary"),Q.literal("--color-background-tertiary"),Q.literal("--color-background-inverse"),Q.literal("--color-background-ghost"),Q.literal("--color-background-info"),Q.literal("--color-background-danger"),Q.literal("--color-background-success"),Q.literal("--color-background-warning"),Q.literal("--color-background-disabled"),Q.literal("--color-text-primary"),Q.literal("--color-text-secondary"),Q.literal("--color-text-tertiary"),Q.literal("--color-text-inverse"),Q.literal("--color-text-ghost"),Q.literal("--color-text-info"),Q.literal("--color-text-danger"),Q.literal("--color-text-success"),Q.literal("--color-text-warning"),Q.literal("--color-text-disabled"),Q.literal("--color-border-primary"),Q.literal("--color-border-secondary"),Q.literal("--color-border-tertiary"),Q.literal("--color-border-inverse"),Q.literal("--color-border-ghost"),Q.literal("--color-border-info"),Q.literal("--color-border-danger"),Q.literal("--color-border-success"),Q.literal("--color-border-warning"),Q.literal("--color-border-disabled"),Q.literal("--color-ring-primary"),Q.literal("--color-ring-secondary"),Q.literal("--color-ring-inverse"),Q.literal("--color-ring-info"),Q.literal("--color-ring-danger"),Q.literal("--color-ring-success"),Q.literal("--color-ring-warning"),Q.literal("--font-sans"),Q.literal("--font-mono"),Q.literal("--font-weight-normal"),Q.literal("--font-weight-medium"),Q.literal("--font-weight-semibold"),Q.literal("--font-weight-bold"),Q.literal("--font-text-xs-size"),Q.literal("--font-text-sm-size"),Q.literal("--font-text-md-size"),Q.literal("--font-text-lg-size"),Q.literal("--font-heading-xs-size"),Q.literal("--font-heading-sm-size"),Q.literal("--font-heading-md-size"),Q.literal("--font-heading-lg-size"),Q.literal("--font-heading-xl-size"),Q.literal("--font-heading-2xl-size"),Q.literal("--font-heading-3xl-size"),Q.literal("--font-text-xs-line-height"),Q.literal("--font-text-sm-line-height"),Q.literal("--font-text-md-line-height"),Q.literal("--font-text-lg-line-height"),Q.literal("--font-heading-xs-line-height"),Q.literal("--font-heading-sm-line-height"),Q.literal("--font-heading-md-line-height"),Q.literal("--font-heading-lg-line-height"),Q.literal("--font-heading-xl-line-height"),Q.literal("--font-heading-2xl-line-height"),Q.literal("--font-heading-3xl-line-height"),Q.literal("--border-radius-xs"),Q.literal("--border-radius-sm"),Q.literal("--border-radius-md"),Q.literal("--border-radius-lg"),Q.literal("--border-radius-xl"),Q.literal("--border-radius-full"),Q.literal("--border-width-regular"),Q.literal("--shadow-hairline"),Q.literal("--shadow-sm"),Q.literal("--shadow-md"),Q.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),AQ=Q.record(IQ.describe(`Style variables for theming MCP apps.
		import{CallToolRequestSchema as CQ,CallToolResultSchema as SQ,ListPromptsRequestSchema as qQ,ListPromptsResultSchema as yQ,ListResourcesRequestSchema as kQ,ListResourcesResultSchema as fQ,ListResourceTemplatesRequestSchema as dQ,ListResourceTemplatesResultSchema as bQ,LoggingMessageNotificationSchema as xQ,PingRequestSchema as uQ,PromptListChangedNotificationSchema as hQ,ReadResourceRequestSchema as mQ,ReadResourceResultSchema as pQ,ResourceListChangedNotificationSchema as cQ,ToolListChangedNotificationSchema as nQ}from"@modelcontextprotocol/sdk/types.js";import{Protocol as iQ}from"@modelcontextprotocol/sdk/shared/protocol.js";var G="2026-01-26",o="ui/open-link",a="ui/download-file",t="ui/message",s="ui/notifications/sandbox-proxy-ready",e="ui/notifications/sandbox-resource-ready",QQ="ui/notifications/size-changed",XQ="ui/notifications/tool-input",_="ui/notifications/tool-input-partial",YQ="ui/notifications/tool-result",ZQ="ui/notifications/tool-cancelled",$Q="ui/notifications/host-context-changed",JQ="ui/notifications/request-teardown",KQ="ui/resource-teardown",GQ="ui/initialize",WQ="ui/notifications/initialized",DQ="ui/request-display-mode";import{z as Q}from"zod/v4";import{ContentBlockSchema as u,CallToolResultSchema as NQ,EmbeddedResourceSchema as jQ,ImplementationSchema as h,RequestIdSchema as EQ,ResourceLinkSchema as zQ,ToolSchema as BQ}from"@modelcontextprotocol/sdk/types.js";var m=Q.union([Q.literal("light"),Q.literal("dark")]).describe("Color theme preference for the host environment."),W=Q.union([Q.literal("inline"),Q.literal("fullscreen"),Q.literal("pip")]).describe("Display mode for UI presentation."),_Q=Q.union([Q.literal("--color-background-primary"),Q.literal("--color-background-secondary"),Q.literal("--color-background-tertiary"),Q.literal("--color-background-inverse"),Q.literal("--color-background-ghost"),Q.literal("--color-background-info"),Q.literal("--color-background-danger"),Q.literal("--color-background-success"),Q.literal("--color-background-warning"),Q.literal("--color-background-disabled"),Q.literal("--color-text-primary"),Q.literal("--color-text-secondary"),Q.literal("--color-text-tertiary"),Q.literal("--color-text-inverse"),Q.literal("--color-text-ghost"),Q.literal("--color-text-info"),Q.literal("--color-text-danger"),Q.literal("--color-text-success"),Q.literal("--color-text-warning"),Q.literal("--color-text-disabled"),Q.literal("--color-border-primary"),Q.literal("--color-border-secondary"),Q.literal("--color-border-tertiary"),Q.literal("--color-border-inverse"),Q.literal("--color-border-ghost"),Q.literal("--color-border-info"),Q.literal("--color-border-danger"),Q.literal("--color-border-success"),Q.literal("--color-border-warning"),Q.literal("--color-border-disabled"),Q.literal("--color-ring-primary"),Q.literal("--color-ring-secondary"),Q.literal("--color-ring-inverse"),Q.literal("--color-ring-info"),Q.literal("--color-ring-danger"),Q.literal("--color-ring-success"),Q.literal("--color-ring-warning"),Q.literal("--font-sans"),Q.literal("--font-mono"),Q.literal("--font-weight-normal"),Q.literal("--font-weight-medium"),Q.literal("--font-weight-semibold"),Q.literal("--font-weight-bold"),Q.literal("--font-text-xs-size"),Q.literal("--font-text-sm-size"),Q.literal("--font-text-md-size"),Q.literal("--font-text-lg-size"),Q.literal("--font-heading-xs-size"),Q.literal("--font-heading-sm-size"),Q.literal("--font-heading-md-size"),Q.literal("--font-heading-lg-size"),Q.literal("--font-heading-xl-size"),Q.literal("--font-heading-2xl-size"),Q.literal("--font-heading-3xl-size"),Q.literal("--font-text-xs-line-height"),Q.literal("--font-text-sm-line-height"),Q.literal("--font-text-md-line-height"),Q.literal("--font-text-lg-line-height"),Q.literal("--font-heading-xs-line-height"),Q.literal("--font-heading-sm-line-height"),Q.literal("--font-heading-md-line-height"),Q.literal("--font-heading-lg-line-height"),Q.literal("--font-heading-xl-line-height"),Q.literal("--font-heading-2xl-line-height"),Q.literal("--font-heading-3xl-line-height"),Q.literal("--border-radius-xs"),Q.literal("--border-radius-sm"),Q.literal("--border-radius-md"),Q.literal("--border-radius-lg"),Q.literal("--border-radius-xl"),Q.literal("--border-radius-full"),Q.literal("--border-width-regular"),Q.literal("--shadow-hairline"),Q.literal("--shadow-sm"),Q.literal("--shadow-md"),Q.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),OQ=Q.record(_Q.describe(`Style variables for theming MCP apps.

		@@ -19,6 +19,6 @@ Individual style keys are optional - hosts may provide any subset of these values.
		Note: This type uses \`Record<K, string \| undefined>\` rather than \`Partial<Record<K, string>>\`
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),V=Q.object({method:Q.literal("ui/open-link"),params:Q.object({url:Q.string().describe("URL to open in the host's browser")})}),I=Q.object({isError:Q.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),A=Q.object({isError:Q.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),F=Q.object({isError:Q.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),L=Q.object({method:Q.literal("ui/notifications/sandbox-proxy-ready"),params:Q.object({})}),j=Q.object({connectDomains:Q.array(Q.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),V=Q.object({method:Q.literal("ui/open-link"),params:Q.object({url:Q.string().describe("URL to open in the host's browser")})}),I=Q.object({isError:Q.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),A=Q.object({isError:Q.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),F=Q.object({isError:Q.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),L=Q.object({method:Q.literal("ui/notifications/sandbox-proxy-ready"),params:Q.object({})}),N=Q.object({connectDomains:Q.array(Q.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).

		- Maps to CSP \`connect-src\` directive
		- Empty or omitted → no network connections (secure default)`),resourceDomains:Q.array(Q.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:Q.array(Q.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:Q.array(Q.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),E=Q.object({camera:Q.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:Q.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:Q.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:Q.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),P=Q.object({method:Q.literal("ui/notifications/size-changed"),params:Q.object({width:Q.number().optional().describe("New width in pixels."),height:Q.number().optional().describe("New height in pixels.")})}),T=Q.object({method:Q.literal("ui/notifications/tool-input"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),w=Q.object({method:Q.literal("ui/notifications/tool-input-partial"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),R=Q.object({method:Q.literal("ui/notifications/tool-cancelled"),params:Q.object({reason:Q.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),c=Q.object({fonts:Q.string().optional()}),n=Q.object({variables:AQ.optional().describe("CSS variables for theming the app."),css:c.optional().describe("CSS blocks that apps can inject.")}),U=Q.object({method:Q.literal("ui/resource-teardown"),params:Q.object({})}),H=Q.record(Q.string(),Q.unknown()),O=Q.object({text:Q.object({}).optional().describe("Host supports text content blocks."),image:Q.object({}).optional().describe("Host supports image content blocks."),audio:Q.object({}).optional().describe("Host supports audio content blocks."),resource:Q.object({}).optional().describe("Host supports resource content blocks."),resourceLink:Q.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:Q.object({}).optional().describe("Host supports structured content.")}),M=Q.object({method:Q.literal("ui/notifications/request-teardown"),params:Q.object({}).optional()}),i=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:Q.object({}).optional().describe("Host supports opening external URLs."),downloadFile:Q.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:Q.object({listChanged:Q.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:Q.object({listChanged:Q.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:Q.object({}).optional().describe("Host accepts log messages."),sandbox:Q.object({permissions:E.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:j.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:O.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:O.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),l=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),tools:Q.object({listChanged:Q.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:Q.array(D).optional().describe("Display modes the app supports.")}),v=Q.object({method:Q.literal("ui/notifications/initialized"),params:Q.object({}).optional()}),FQ=Q.object({csp:j.optional().describe("Content Security Policy configuration for UI resources."),permissions:E.optional().describe("Sandbox permissions requested by the UI resource."),domain:Q.string().optional().describe(`Dedicated origin for view sandbox.
		- Empty or omitted → no network connections (secure default)`),resourceDomains:Q.array(Q.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:Q.array(Q.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:Q.array(Q.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),j=Q.object({camera:Q.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:Q.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:Q.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:Q.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),P=Q.object({method:Q.literal("ui/notifications/size-changed"),params:Q.object({width:Q.number().optional().describe("New width in pixels."),height:Q.number().optional().describe("New height in pixels.")})}),T=Q.object({method:Q.literal("ui/notifications/tool-input"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),w=Q.object({method:Q.literal("ui/notifications/tool-input-partial"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),R=Q.object({method:Q.literal("ui/notifications/tool-cancelled"),params:Q.object({reason:Q.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),p=Q.object({fonts:Q.string().optional()}),c=Q.object({variables:OQ.optional().describe("CSS variables for theming the app."),css:p.optional().describe("CSS blocks that apps can inject.")}),U=Q.object({method:Q.literal("ui/resource-teardown"),params:Q.object({})}),H=Q.record(Q.string(),Q.unknown()),O=Q.object({text:Q.object({}).optional().describe("Host supports text content blocks."),image:Q.object({}).optional().describe("Host supports image content blocks."),audio:Q.object({}).optional().describe("Host supports audio content blocks."),resource:Q.object({}).optional().describe("Host supports resource content blocks."),resourceLink:Q.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:Q.object({}).optional().describe("Host supports structured content.")}),M=Q.object({method:Q.literal("ui/notifications/request-teardown"),params:Q.object({}).optional()}),n=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:Q.object({}).optional().describe("Host supports opening external URLs."),downloadFile:Q.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:Q.object({listChanged:Q.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:Q.object({listChanged:Q.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:Q.object({}).optional().describe("Host accepts log messages."),sandbox:Q.object({permissions:j.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:N.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:O.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:O.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),i=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),tools:Q.object({listChanged:Q.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:Q.array(W).optional().describe("Display modes the app supports.")}),v=Q.object({method:Q.literal("ui/notifications/initialized"),params:Q.object({}).optional()}),VQ=Q.object({csp:N.optional().describe("Content Security Policy configuration for UI resources."),permissions:j.optional().describe("Sandbox permissions requested by the UI resource."),domain:Q.string().optional().describe(`Dedicated origin for view sandbox.

		@@ -37,5 +37,5 @@ Useful when views need stable, dedicated origins for OAuth callbacks, CORS policies, or API key allowlists.
		- \`false\`: request no visible border + background
		- omitted: host decides border`)}),W=Q.object({method:Q.literal("ui/request-display-mode"),params:Q.object({mode:D.describe("The display mode being requested.")})}),g=Q.object({mode:D.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),r=Q.union([Q.literal("model"),Q.literal("app")]).describe("Tool visibility scope - who can access the tool."),LQ=Q.object({resourceUri:Q.string().optional(),visibility:Q.array(r).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- omitted: host decides border`)}),E=Q.object({method:Q.literal("ui/request-display-mode"),params:Q.object({mode:W.describe("The display mode being requested.")})}),g=Q.object({mode:W.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),l=Q.union([Q.literal("model"),Q.literal("app")]).describe("Tool visibility scope - who can access the tool."),IQ=Q.object({resourceUri:Q.string().optional(),visibility:Q.array(l).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- "model": Tool visible to and callable by the agent
		- "app": Tool callable by the app from this server only`)}),YX=Q.object({mimeTypes:Q.array(Q.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),C=Q.object({method:Q.literal("ui/download-file"),params:Q.object({contents:Q.array(Q.union([BQ,OQ])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),S=Q.object({method:Q.literal("ui/message"),params:Q.object({role:Q.literal("user").describe('Message role, currently only "user" is supported.'),content:Q.array(h).describe("Message content blocks (text, image, etc.).")})}),PQ=Q.object({method:Q.literal("ui/notifications/sandbox-resource-ready"),params:Q.object({html:Q.string().describe("HTML content to load into the inner iframe."),sandbox:Q.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:j.optional().describe("CSP configuration from resource metadata."),permissions:E.optional().describe("Sandbox permissions from resource metadata.")})}),q=Q.object({method:Q.literal("ui/notifications/tool-result"),params:zQ.describe("Standard MCP tool execution result.")}),y=Q.object({toolInfo:Q.object({id:_Q.optional().describe("JSON-RPC id of the tools/call request."),tool:VQ.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:p.optional().describe("Current color theme preference."),styles:n.optional().describe("Style configuration for theming the app."),displayMode:D.optional().describe("How the UI is currently displayed."),availableDisplayModes:Q.array(D).optional().describe("Display modes the host supports."),containerDimensions:Q.union([Q.object({height:Q.number().describe("Fixed container height in pixels.")}),Q.object({maxHeight:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(Q.union([Q.object({width:Q.number().describe("Fixed container width in pixels.")}),Q.object({maxWidth:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:Q.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:Q.string().optional().describe("User's timezone in IANA format."),userAgent:Q.string().optional().describe("Host application identifier."),platform:Q.union([Q.literal("web"),Q.literal("desktop"),Q.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:Q.object({touch:Q.boolean().optional().describe("Whether the device supports touch input."),hover:Q.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:Q.object({top:Q.number().describe("Top safe area inset in pixels."),right:Q.number().describe("Right safe area inset in pixels."),bottom:Q.number().describe("Bottom safe area inset in pixels."),left:Q.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),k=Q.object({method:Q.literal("ui/notifications/host-context-changed"),params:y.describe("Partial context update containing only changed fields.")}),f=Q.object({method:Q.literal("ui/update-model-context"),params:Q.object({content:Q.array(h).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:Q.record(Q.string(),Q.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),d=Q.object({method:Q.literal("ui/initialize"),params:Q.object({appInfo:m.describe("App identification (name and version)."),appCapabilities:l.describe("Features and capabilities this app provides."),protocolVersion:Q.string().describe("Protocol version this app supports.")})}),b=Q.object({protocolVersion:Q.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:m.describe("Host application identification and version."),hostCapabilities:i.describe("Features and capabilities provided by the host."),hostContext:y.describe("Rich context about the host environment.")}).passthrough();import{Protocol as wQ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as RQ,CallToolResultSchema as UQ,EmptyResultSchema as HQ,ListResourcesResultSchema as MQ,ListToolsRequestSchema as vQ,PingRequestSchema as gQ,ReadResourceResultSchema as CQ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as TQ}from"@modelcontextprotocol/sdk/types.js";class N{eventTarget;eventSource;messageListener;constructor(X=window.parent,Y){this.eventTarget=X;this.eventSource=Y;this.messageListener=(Z)=>{if(Y&&Z.source!==this.eventSource){console.debug("Ignoring message from unknown source",Z);return}let $=TQ.safeParse(Z.data);if($.success)console.debug("Parsed message",$.data),this.onmessage?.($.data);else if(Z.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",$.error.message,Z);else console.error("Failed to parse message",$.error.message,Z),this.onerror?.(Error("Invalid JSON-RPC message received: "+$.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(X,Y){if(X.method!==_)console.debug("Sending message",X);this.eventTarget.postMessage(X,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}var x="ui/resourceUri",SQ="text/html;profile=mcp-app";class qQ extends wQ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(X,Y={},Z={autoResize:!0}){super(Z);this._appInfo=X;this._capabilities=Y;this.options=Z;this.setRequestHandler(gQ,($)=>{return console.log("Received ping:",$.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(X){this.setNotificationHandler(T,(Y)=>X(Y.params))}set ontoolinputpartial(X){this.setNotificationHandler(w,(Y)=>X(Y.params))}set ontoolresult(X){this.setNotificationHandler(q,(Y)=>X(Y.params))}set ontoolcancelled(X){this.setNotificationHandler(R,(Y)=>X(Y.params))}set onhostcontextchanged(X){this.setNotificationHandler(k,(Y)=>{this._hostContext={...this._hostContext,...Y.params},X(Y.params)})}set onteardown(X){this.setRequestHandler(U,(Y,Z)=>X(Y.params,Z))}set oncalltool(X){this.setRequestHandler(RQ,(Y,Z)=>X(Y.params,Z))}set onlisttools(X){this.setRequestHandler(vQ,(Y,Z)=>X(Y.params,Z))}assertCapabilityForMethod(X){}assertRequestHandlerCapability(X){switch(X){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${X})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${X} registered`)}}assertNotificationCapability(X){}assertTaskCapability(X){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(X){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(X,Y){if(typeof X==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${X}"). Did you mean: callServerTool({ name: "${X}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:X},UQ,Y)}async readServerResource(X,Y){return await this.request({method:"resources/read",params:X},CQ,Y)}async listServerResources(X,Y){return await this.request({method:"resources/list",params:X},MQ,Y)}sendMessage(X,Y){return this.request({method:"ui/message",params:X},F,Y)}sendLog(X){return this.notification({method:"notifications/message",params:X})}updateModelContext(X,Y){return this.request({method:"ui/update-model-context",params:X},HQ,Y)}openLink(X,Y){return this.request({method:"ui/open-link",params:X},I,Y)}sendOpenLink=this.openLink;downloadFile(X,Y){return this.request({method:"ui/download-file",params:X},A,Y)}requestTeardown(X={}){return this.notification({method:"ui/notifications/request-teardown",params:X})}requestDisplayMode(X,Y){return this.request({method:"ui/request-display-mode",params:X},g,Y)}sendSizeChanged(X){return this.notification({method:"ui/notifications/size-changed",params:X})}setupSizeChangedNotifications(){let X=!1,Y=0,Z=0,$=()=>{if(X)return;X=!0,requestAnimationFrame(()=>{X=!1;let J=document.documentElement,o=J.style.width,a=J.style.height;J.style.width="fit-content",J.style.height="max-content";let u=J.getBoundingClientRect();J.style.width=o,J.style.height=a;let t=window.innerWidth-J.clientWidth,z=Math.ceil(u.width+t),B=Math.ceil(u.height);if(z!==Y\|\|B!==Z)Y=z,Z=B,this.sendSizeChanged({width:z,height:B})})};$();let K=new ResizeObserver($);return K.observe(document.documentElement),K.observe(document.body),()=>K.disconnect()}async connect(X=new N(window.parent,window.parent),Y){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(X);try{let Z=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:G}},b,Y);if(Z===void 0)throw Error(`Server sent invalid initialize result: ${Z}`);if(this._hostCapabilities=Z.hostCapabilities,this._hostInfo=Z.hostInfo,this._hostContext=Z.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(Z){throw this.close(),Z}}}function nY(X){let Z=X._meta?.ui?.resourceUri;if(Z===void 0)Z=X._meta?.[x];if(typeof Z==="string"&&Z.startsWith("ui://"))return Z;else if(Z!==void 0)throw Error(`Invalid UI resource URI: ${JSON.stringify(Z)}`);return}function iY(X){let Z=X._meta?.ui?.visibility;if(!Z)return!1;if(Z.length===1&&Z[0]==="model")return!0;return!1}function lY(X){let Z=X._meta?.ui?.visibility;if(!Z)return!1;if(Z.length===1&&Z[0]==="app")return!0;return!1}function rY(X){if(!X)return"";let Y=[];if(X.camera)Y.push("camera");if(X.microphone)Y.push("microphone");if(X.geolocation)Y.push("geolocation");if(X.clipboardWrite)Y.push("clipboard-write");return Y.join("; ")}var aQ=[G];class tQ extends oQ{_client;_hostInfo;_capabilities;_appCapabilities;_hostContext={};_appInfo;constructor(X,Y,Z,$){super($);this._client=X;this._hostInfo=Y;this._capabilities=Z;this._hostContext=$?.hostContext\|\|{},this.setRequestHandler(d,(K)=>this._oninitialize(K)),this.setRequestHandler(pQ,(K,J)=>{return this.onping?.(K.params,J),{}}),this.setRequestHandler(W,(K)=>{return{mode:this._hostContext.displayMode??"inline"}})}getAppCapabilities(){return this._appCapabilities}getAppVersion(){return this._appInfo}onping;set onsizechange(X){this.setNotificationHandler(P,(Y)=>X(Y.params))}set onsandboxready(X){this.setNotificationHandler(L,(Y)=>X(Y.params))}set oninitialized(X){this.setNotificationHandler(v,(Y)=>X(Y.params))}set onmessage(X){this.setRequestHandler(S,async(Y,Z)=>{return X(Y.params,Z)})}set onopenlink(X){this.setRequestHandler(V,async(Y,Z)=>{return X(Y.params,Z)})}set ondownloadfile(X){this.setRequestHandler(C,async(Y,Z)=>{return X(Y.params,Z)})}set onrequestteardown(X){this.setNotificationHandler(M,(Y)=>X(Y.params))}set onrequestdisplaymode(X){this.setRequestHandler(W,async(Y,Z)=>{return X(Y.params,Z)})}set onloggingmessage(X){this.setNotificationHandler(mQ,async(Y)=>{X(Y.params)})}set onupdatemodelcontext(X){this.setRequestHandler(f,async(Y,Z)=>{return X(Y.params,Z)})}set oncalltool(X){this.setRequestHandler(yQ,async(Y,Z)=>{return X(Y.params,Z)})}sendToolListChanged(X={}){return this.notification({method:"notifications/tools/list_changed",params:X})}set onlistresources(X){this.setRequestHandler(bQ,async(Y,Z)=>{return X(Y.params,Z)})}set onlistresourcetemplates(X){this.setRequestHandler(uQ,async(Y,Z)=>{return X(Y.params,Z)})}set onreadresource(X){this.setRequestHandler(nQ,async(Y,Z)=>{return X(Y.params,Z)})}sendResourceListChanged(X={}){return this.notification({method:"notifications/resources/list_changed",params:X})}set onlistprompts(X){this.setRequestHandler(fQ,async(Y,Z)=>{return X(Y.params,Z)})}sendPromptListChanged(X={}){return this.notification({method:"notifications/prompts/list_changed",params:X})}assertCapabilityForMethod(X){}assertRequestHandlerCapability(X){}assertNotificationCapability(X){}assertTaskCapability(X){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(X){throw Error("Task handlers are not supported in MCP Apps")}getCapabilities(){return this._capabilities}async _oninitialize(X){let Y=X.params.protocolVersion;return this._appCapabilities=X.params.appCapabilities,this._appInfo=X.params.appInfo,{protocolVersion:aQ.includes(Y)?Y:G,hostCapabilities:this.getCapabilities(),hostInfo:this._hostInfo,hostContext:this._hostContext}}setHostContext(X){let Y={},Z=!1;for(let $ of Object.keys(X)){let K=this._hostContext[$],J=X[$];if(sQ(K,J))continue;Y[$]=J,Z=!0}if(Z)this._hostContext=X,this.sendHostContextChange(Y)}sendHostContextChange(X){return this.notification({method:"ui/notifications/host-context-changed",params:X})}sendToolInput(X){return this.notification({method:"ui/notifications/tool-input",params:X})}sendToolInputPartial(X){return this.notification({method:"ui/notifications/tool-input-partial",params:X})}sendToolResult(X){return this.notification({method:"ui/notifications/tool-result",params:X})}sendToolCancelled(X){return this.notification({method:"ui/notifications/tool-cancelled",params:X})}sendSandboxResourceReady(X){return this.notification({method:"ui/notifications/sandbox-resource-ready",params:X})}teardownResource(X,Y){return this.request({method:"ui/resource-teardown",params:X},H,Y)}sendResourceTeardown=this.teardownResource;async connect(X){if(this.transport)throw Error("AppBridge is already connected. Call close() before connecting again.");if(this._client){let Y=this._client.getServerCapabilities();if(!Y)throw Error("Client server capabilities not available");if(Y.tools){if(this.oncalltool=async(Z,$)=>{return this._client.request({method:"tools/call",params:Z},kQ,{signal:$.signal})},Y.tools.listChanged)this._client.setNotificationHandler(rQ,(Z)=>this.sendToolListChanged(Z.params))}if(Y.resources){if(this.onlistresources=async(Z,$)=>{return this._client.request({method:"resources/list",params:Z},xQ,{signal:$.signal})},this.onlistresourcetemplates=async(Z,$)=>{return this._client.request({method:"resources/templates/list",params:Z},hQ,{signal:$.signal})},this.onreadresource=async(Z,$)=>{return this._client.request({method:"resources/read",params:Z},iQ,{signal:$.signal})},Y.resources.listChanged)this._client.setNotificationHandler(lQ,(Z)=>this.sendResourceListChanged(Z.params))}if(Y.prompts){if(this.onlistprompts=async(Z,$)=>{return this._client.request({method:"prompts/list",params:Z},dQ,{signal:$.signal})},Y.prompts.listChanged)this._client.setNotificationHandler(cQ,(Z)=>this.sendPromptListChanged(Z.params))}}return super.connect(X)}}function sQ(X,Y){return JSON.stringify(X)===JSON.stringify(Y)}export{iY as isToolVisibilityModelOnly,lY as isToolVisibilityAppOnly,nY as getToolUiResourceUri,rY as buildAllowAttribute,JQ as TOOL_RESULT_METHOD,_ as TOOL_INPUT_PARTIAL_METHOD,$Q as TOOL_INPUT_METHOD,KQ as TOOL_CANCELLED_METHOD,aQ as SUPPORTED_PROTOCOL_VERSIONS,ZQ as SIZE_CHANGED_METHOD,YQ as SANDBOX_RESOURCE_READY_METHOD,XQ as SANDBOX_PROXY_READY_METHOD,x as RESOURCE_URI_META_KEY,NQ as RESOURCE_TEARDOWN_METHOD,SQ as RESOURCE_MIME_TYPE,DQ as REQUEST_TEARDOWN_METHOD,WQ as REQUEST_DISPLAY_MODE_METHOD,N as PostMessageTransport,s as OPEN_LINK_METHOD,f as McpUiUpdateModelContextRequestSchema,r as McpUiToolVisibilitySchema,q as McpUiToolResultNotificationSchema,LQ as McpUiToolMetaSchema,w as McpUiToolInputPartialNotificationSchema,T as McpUiToolInputNotificationSchema,R as McpUiToolCancelledNotificationSchema,p as McpUiThemeSchema,O as McpUiSupportedContentBlockModalitiesSchema,P as McpUiSizeChangedNotificationSchema,PQ as McpUiSandboxResourceReadyNotificationSchema,L as McpUiSandboxProxyReadyNotificationSchema,H as McpUiResourceTeardownResultSchema,U as McpUiResourceTeardownRequestSchema,E as McpUiResourcePermissionsSchema,FQ as McpUiResourceMetaSchema,j as McpUiResourceCspSchema,M as McpUiRequestTeardownNotificationSchema,g as McpUiRequestDisplayModeResultSchema,W as McpUiRequestDisplayModeRequestSchema,I as McpUiOpenLinkResultSchema,V as McpUiOpenLinkRequestSchema,F as McpUiMessageResultSchema,S as McpUiMessageRequestSchema,v as McpUiInitializedNotificationSchema,b as McpUiInitializeResultSchema,d as McpUiInitializeRequestSchema,n as McpUiHostStylesSchema,c as McpUiHostCssSchema,y as McpUiHostContextSchema,k as McpUiHostContextChangedNotificationSchema,i as McpUiHostCapabilitiesSchema,A as McpUiDownloadFileResultSchema,C as McpUiDownloadFileRequestSchema,D as McpUiDisplayModeSchema,l as McpUiAppCapabilitiesSchema,QQ as MESSAGE_METHOD,G as LATEST_PROTOCOL_VERSION,jQ as INITIALIZE_METHOD,EQ as INITIALIZED_METHOD,GQ as HOST_CONTEXT_CHANGED_METHOD,e as DOWNLOAD_FILE_METHOD,tQ as AppBridge};
		- "app": Tool callable by the app from this server only`)}),eQ=Q.object({mimeTypes:Q.array(Q.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),C=Q.object({method:Q.literal("ui/download-file"),params:Q.object({contents:Q.array(Q.union([jQ,zQ])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),S=Q.object({method:Q.literal("ui/message"),params:Q.object({role:Q.literal("user").describe('Message role, currently only "user" is supported.'),content:Q.array(u).describe("Message content blocks (text, image, etc.).")})}),AQ=Q.object({method:Q.literal("ui/notifications/sandbox-resource-ready"),params:Q.object({html:Q.string().describe("HTML content to load into the inner iframe."),sandbox:Q.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:N.optional().describe("CSP configuration from resource metadata."),permissions:j.optional().describe("Sandbox permissions from resource metadata.")})}),q=Q.object({method:Q.literal("ui/notifications/tool-result"),params:NQ.describe("Standard MCP tool execution result.")}),y=Q.object({toolInfo:Q.object({id:EQ.optional().describe("JSON-RPC id of the tools/call request."),tool:BQ.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:m.optional().describe("Current color theme preference."),styles:c.optional().describe("Style configuration for theming the app."),displayMode:W.optional().describe("How the UI is currently displayed."),availableDisplayModes:Q.array(W).optional().describe("Display modes the host supports."),containerDimensions:Q.union([Q.object({height:Q.number().describe("Fixed container height in pixels.")}),Q.object({maxHeight:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(Q.union([Q.object({width:Q.number().describe("Fixed container width in pixels.")}),Q.object({maxWidth:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:Q.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:Q.string().optional().describe("User's timezone in IANA format."),userAgent:Q.string().optional().describe("Host application identifier."),platform:Q.union([Q.literal("web"),Q.literal("desktop"),Q.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:Q.object({touch:Q.boolean().optional().describe("Whether the device supports touch input."),hover:Q.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:Q.object({top:Q.number().describe("Top safe area inset in pixels."),right:Q.number().describe("Right safe area inset in pixels."),bottom:Q.number().describe("Bottom safe area inset in pixels."),left:Q.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),k=Q.object({method:Q.literal("ui/notifications/host-context-changed"),params:y.describe("Partial context update containing only changed fields.")}),f=Q.object({method:Q.literal("ui/update-model-context"),params:Q.object({content:Q.array(u).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:Q.record(Q.string(),Q.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),d=Q.object({method:Q.literal("ui/initialize"),params:Q.object({appInfo:h.describe("App identification (name and version)."),appCapabilities:i.describe("Features and capabilities this app provides."),protocolVersion:Q.string().describe("Protocol version this app supports.")})}),b=Q.object({protocolVersion:Q.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:h.describe("Host application identification and version."),hostCapabilities:n.describe("Features and capabilities provided by the host."),hostContext:y.describe("Rich context about the host environment.")}).passthrough();import{Protocol as LQ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as PQ,CallToolResultSchema as TQ,EmptyResultSchema as wQ,ListResourcesResultSchema as RQ,ListToolsRequestSchema as UQ,PingRequestSchema as HQ,ReadResourceResultSchema as MQ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as FQ}from"@modelcontextprotocol/sdk/types.js";class D{eventTarget;eventSource;messageListener;constructor(X=window.parent,Y){this.eventTarget=X;this.eventSource=Y;this.messageListener=(Z)=>{if(Y&&Z.source!==this.eventSource){console.debug("Ignoring message from unknown source",Z);return}let $=FQ.safeParse(Z.data);if($.success)console.debug("Parsed message",$.data),this.onmessage?.($.data);else if(Z.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",$.error.message,Z);else console.error("Failed to parse message",$.error.message,Z),this.onerror?.(Error("Invalid JSON-RPC message received: "+$.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(X,Y){if(X.method!==_)console.debug("Sending message",X);this.eventTarget.postMessage(X,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}var x="ui/resourceUri",vQ="text/html;profile=mcp-app";class gQ extends LQ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(X,Y={},Z={autoResize:!0}){super(Z);this._appInfo=X;this._capabilities=Y;this.options=Z;this.setRequestHandler(HQ,($)=>{return console.log("Received ping:",$.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(X){this.setNotificationHandler(T,(Y)=>X(Y.params))}set ontoolinputpartial(X){this.setNotificationHandler(w,(Y)=>X(Y.params))}set ontoolresult(X){this.setNotificationHandler(q,(Y)=>X(Y.params))}set ontoolcancelled(X){this.setNotificationHandler(R,(Y)=>X(Y.params))}set onhostcontextchanged(X){this.setNotificationHandler(k,(Y)=>{this._hostContext={...this._hostContext,...Y.params},X(Y.params)})}set onteardown(X){this.setRequestHandler(U,(Y,Z)=>X(Y.params,Z))}set oncalltool(X){this.setRequestHandler(PQ,(Y,Z)=>X(Y.params,Z))}set onlisttools(X){this.setRequestHandler(UQ,(Y,Z)=>X(Y.params,Z))}assertCapabilityForMethod(X){}assertRequestHandlerCapability(X){switch(X){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${X})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${X} registered`)}}assertNotificationCapability(X){}assertTaskCapability(X){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(X){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(X,Y){if(typeof X==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${X}"). Did you mean: callServerTool({ name: "${X}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:X},TQ,Y)}async readServerResource(X,Y){return await this.request({method:"resources/read",params:X},MQ,Y)}async listServerResources(X,Y){return await this.request({method:"resources/list",params:X},RQ,Y)}sendMessage(X,Y){return this.request({method:"ui/message",params:X},F,Y)}sendLog(X){return this.notification({method:"notifications/message",params:X})}updateModelContext(X,Y){return this.request({method:"ui/update-model-context",params:X},wQ,Y)}openLink(X,Y){return this.request({method:"ui/open-link",params:X},I,Y)}sendOpenLink=this.openLink;downloadFile(X,Y){return this.request({method:"ui/download-file",params:X},A,Y)}requestTeardown(X={}){return this.notification({method:"ui/notifications/request-teardown",params:X})}requestDisplayMode(X,Y){return this.request({method:"ui/request-display-mode",params:X},g,Y)}sendSizeChanged(X){return this.notification({method:"ui/notifications/size-changed",params:X})}setupSizeChangedNotifications(){let X=!1,Y=0,Z=0,$=()=>{if(X)return;X=!0,requestAnimationFrame(()=>{X=!1;let K=document.documentElement,r=K.style.height;K.style.height="max-content";let z=Math.ceil(K.getBoundingClientRect().height);K.style.height=r;let B=Math.ceil(window.innerWidth);if(B!==Y\|\|z!==Z)Y=B,Z=z,this.sendSizeChanged({width:B,height:z})})};$();let J=new ResizeObserver($);return J.observe(document.documentElement),J.observe(document.body),()=>J.disconnect()}async connect(X=new D(window.parent,window.parent),Y){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(X);try{let Z=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:G}},b,Y);if(Z===void 0)throw Error(`Server sent invalid initialize result: ${Z}`);if(this._hostCapabilities=Z.hostCapabilities,this._hostInfo=Z.hostInfo,this._hostContext=Z.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(Z){throw this.close(),Z}}}function mY(X){let Z=X._meta?.ui?.resourceUri;if(Z===void 0)Z=X._meta?.[x];if(typeof Z==="string"&&Z.startsWith("ui://"))return Z;else if(Z!==void 0)throw Error(`Invalid UI resource URI: ${JSON.stringify(Z)}`);return}function pY(X){let Z=X._meta?.ui?.visibility;if(!Z)return!1;if(Z.length===1&&Z[0]==="model")return!0;return!1}function cY(X){let Z=X._meta?.ui?.visibility;if(!Z)return!1;if(Z.length===1&&Z[0]==="app")return!0;return!1}function nY(X){if(!X)return"";let Y=[];if(X.camera)Y.push("camera");if(X.microphone)Y.push("microphone");if(X.geolocation)Y.push("geolocation");if(X.clipboardWrite)Y.push("clipboard-write");return Y.join("; ")}var lQ=[G];class rQ extends iQ{_client;_hostInfo;_capabilities;_appCapabilities;_hostContext={};_appInfo;constructor(X,Y,Z,$){super($);this._client=X;this._hostInfo=Y;this._capabilities=Z;this._hostContext=$?.hostContext\|\|{},this.setRequestHandler(d,(J)=>this._oninitialize(J)),this.setRequestHandler(uQ,(J,K)=>{return this.onping?.(J.params,K),{}}),this.setRequestHandler(E,(J)=>{return{mode:this._hostContext.displayMode??"inline"}})}getAppCapabilities(){return this._appCapabilities}getAppVersion(){return this._appInfo}onping;set onsizechange(X){this.setNotificationHandler(P,(Y)=>X(Y.params))}set onsandboxready(X){this.setNotificationHandler(L,(Y)=>X(Y.params))}set oninitialized(X){this.setNotificationHandler(v,(Y)=>X(Y.params))}set onmessage(X){this.setRequestHandler(S,async(Y,Z)=>{return X(Y.params,Z)})}set onopenlink(X){this.setRequestHandler(V,async(Y,Z)=>{return X(Y.params,Z)})}set ondownloadfile(X){this.setRequestHandler(C,async(Y,Z)=>{return X(Y.params,Z)})}set onrequestteardown(X){this.setNotificationHandler(M,(Y)=>X(Y.params))}set onrequestdisplaymode(X){this.setRequestHandler(E,async(Y,Z)=>{return X(Y.params,Z)})}set onloggingmessage(X){this.setNotificationHandler(xQ,async(Y)=>{X(Y.params)})}set onupdatemodelcontext(X){this.setRequestHandler(f,async(Y,Z)=>{return X(Y.params,Z)})}set oncalltool(X){this.setRequestHandler(CQ,async(Y,Z)=>{return X(Y.params,Z)})}sendToolListChanged(X={}){return this.notification({method:"notifications/tools/list_changed",params:X})}set onlistresources(X){this.setRequestHandler(kQ,async(Y,Z)=>{return X(Y.params,Z)})}set onlistresourcetemplates(X){this.setRequestHandler(dQ,async(Y,Z)=>{return X(Y.params,Z)})}set onreadresource(X){this.setRequestHandler(mQ,async(Y,Z)=>{return X(Y.params,Z)})}sendResourceListChanged(X={}){return this.notification({method:"notifications/resources/list_changed",params:X})}set onlistprompts(X){this.setRequestHandler(qQ,async(Y,Z)=>{return X(Y.params,Z)})}sendPromptListChanged(X={}){return this.notification({method:"notifications/prompts/list_changed",params:X})}assertCapabilityForMethod(X){}assertRequestHandlerCapability(X){}assertNotificationCapability(X){}assertTaskCapability(X){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(X){throw Error("Task handlers are not supported in MCP Apps")}getCapabilities(){return this._capabilities}async _oninitialize(X){let Y=X.params.protocolVersion;return this._appCapabilities=X.params.appCapabilities,this._appInfo=X.params.appInfo,{protocolVersion:lQ.includes(Y)?Y:G,hostCapabilities:this.getCapabilities(),hostInfo:this._hostInfo,hostContext:this._hostContext}}setHostContext(X){let Y={},Z=!1;for(let $ of Object.keys(X)){let J=this._hostContext[$],K=X[$];if(oQ(J,K))continue;Y[$]=K,Z=!0}if(Z)this._hostContext=X,this.sendHostContextChange(Y)}sendHostContextChange(X){return this.notification({method:"ui/notifications/host-context-changed",params:X})}sendToolInput(X){return this.notification({method:"ui/notifications/tool-input",params:X})}sendToolInputPartial(X){return this.notification({method:"ui/notifications/tool-input-partial",params:X})}sendToolResult(X){return this.notification({method:"ui/notifications/tool-result",params:X})}sendToolCancelled(X){return this.notification({method:"ui/notifications/tool-cancelled",params:X})}sendSandboxResourceReady(X){return this.notification({method:"ui/notifications/sandbox-resource-ready",params:X})}teardownResource(X,Y){return this.request({method:"ui/resource-teardown",params:X},H,Y)}sendResourceTeardown=this.teardownResource;async connect(X){if(this.transport)throw Error("AppBridge is already connected. Call close() before connecting again.");if(this._client){let Y=this._client.getServerCapabilities();if(!Y)throw Error("Client server capabilities not available");if(Y.tools){if(this.oncalltool=async(Z,$)=>{return this._client.request({method:"tools/call",params:Z},SQ,{signal:$.signal})},Y.tools.listChanged)this._client.setNotificationHandler(nQ,(Z)=>this.sendToolListChanged(Z.params))}if(Y.resources){if(this.onlistresources=async(Z,$)=>{return this._client.request({method:"resources/list",params:Z},fQ,{signal:$.signal})},this.onlistresourcetemplates=async(Z,$)=>{return this._client.request({method:"resources/templates/list",params:Z},bQ,{signal:$.signal})},this.onreadresource=async(Z,$)=>{return this._client.request({method:"resources/read",params:Z},pQ,{signal:$.signal})},Y.resources.listChanged)this._client.setNotificationHandler(cQ,(Z)=>this.sendResourceListChanged(Z.params))}if(Y.prompts){if(this.onlistprompts=async(Z,$)=>{return this._client.request({method:"prompts/list",params:Z},yQ,{signal:$.signal})},Y.prompts.listChanged)this._client.setNotificationHandler(hQ,(Z)=>this.sendPromptListChanged(Z.params))}}return super.connect(X)}}function oQ(X,Y){return JSON.stringify(X)===JSON.stringify(Y)}export{pY as isToolVisibilityModelOnly,cY as isToolVisibilityAppOnly,mY as getToolUiResourceUri,nY as buildAllowAttribute,YQ as TOOL_RESULT_METHOD,_ as TOOL_INPUT_PARTIAL_METHOD,XQ as TOOL_INPUT_METHOD,ZQ as TOOL_CANCELLED_METHOD,lQ as SUPPORTED_PROTOCOL_VERSIONS,QQ as SIZE_CHANGED_METHOD,e as SANDBOX_RESOURCE_READY_METHOD,s as SANDBOX_PROXY_READY_METHOD,x as RESOURCE_URI_META_KEY,KQ as RESOURCE_TEARDOWN_METHOD,vQ as RESOURCE_MIME_TYPE,JQ as REQUEST_TEARDOWN_METHOD,DQ as REQUEST_DISPLAY_MODE_METHOD,D as PostMessageTransport,o as OPEN_LINK_METHOD,f as McpUiUpdateModelContextRequestSchema,l as McpUiToolVisibilitySchema,q as McpUiToolResultNotificationSchema,IQ as McpUiToolMetaSchema,w as McpUiToolInputPartialNotificationSchema,T as McpUiToolInputNotificationSchema,R as McpUiToolCancelledNotificationSchema,m as McpUiThemeSchema,O as McpUiSupportedContentBlockModalitiesSchema,P as McpUiSizeChangedNotificationSchema,AQ as McpUiSandboxResourceReadyNotificationSchema,L as McpUiSandboxProxyReadyNotificationSchema,H as McpUiResourceTeardownResultSchema,U as McpUiResourceTeardownRequestSchema,j as McpUiResourcePermissionsSchema,VQ as McpUiResourceMetaSchema,N as McpUiResourceCspSchema,M as McpUiRequestTeardownNotificationSchema,g as McpUiRequestDisplayModeResultSchema,E as McpUiRequestDisplayModeRequestSchema,I as McpUiOpenLinkResultSchema,V as McpUiOpenLinkRequestSchema,F as McpUiMessageResultSchema,S as McpUiMessageRequestSchema,v as McpUiInitializedNotificationSchema,b as McpUiInitializeResultSchema,d as McpUiInitializeRequestSchema,c as McpUiHostStylesSchema,p as McpUiHostCssSchema,y as McpUiHostContextSchema,k as McpUiHostContextChangedNotificationSchema,n as McpUiHostCapabilitiesSchema,A as McpUiDownloadFileResultSchema,C as McpUiDownloadFileRequestSchema,W as McpUiDisplayModeSchema,i as McpUiAppCapabilitiesSchema,t as MESSAGE_METHOD,G as LATEST_PROTOCOL_VERSION,GQ as INITIALIZE_METHOD,WQ as INITIALIZED_METHOD,$Q as HOST_CONTEXT_CHANGED_METHOD,a as DOWNLOAD_FILE_METHOD,rQ as AppBridge};

+6

-6

dist/src/app.js

		@@ -1,2 +0,2 @@
		import{Protocol as UQ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as HQ,CallToolResultSchema as MQ,EmptyResultSchema as vQ,ListResourcesResultSchema as bQ,ListToolsRequestSchema as kQ,PingRequestSchema as CQ,ReadResourceResultSchema as xQ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as XQ}from"@modelcontextprotocol/sdk/types.js";var W="2026-01-26",d="ui/open-link",h="ui/download-file",m="ui/message",i="ui/notifications/sandbox-proxy-ready",l="ui/notifications/sandbox-resource-ready",r="ui/notifications/size-changed",p="ui/notifications/tool-input",z="ui/notifications/tool-input-partial",c="ui/notifications/tool-result",n="ui/notifications/tool-cancelled",a="ui/notifications/host-context-changed",o="ui/notifications/request-teardown",s="ui/resource-teardown",t="ui/initialize",e="ui/notifications/initialized",QQ="ui/request-display-mode";class K{eventTarget;eventSource;messageListener;constructor(X=window.parent,Y){this.eventTarget=X;this.eventSource=Y;this.messageListener=(Z)=>{if(Y&&Z.source!==this.eventSource){console.debug("Ignoring message from unknown source",Z);return}let $=XQ.safeParse(Z.data);if($.success)console.debug("Parsed message",$.data),this.onmessage?.($.data);else if(Z.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",$.error.message,Z);else console.error("Failed to parse message",$.error.message,Z),this.onerror?.(Error("Invalid JSON-RPC message received: "+$.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(X,Y){if(X.method!==z)console.debug("Sending message",X);this.eventTarget.postMessage(X,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}import{z as Q}from"zod/v4";import{ContentBlockSchema as M,CallToolResultSchema as YQ,EmbeddedResourceSchema as ZQ,ImplementationSchema as v,RequestIdSchema as $Q,ResourceLinkSchema as DQ,ToolSchema as JQ}from"@modelcontextprotocol/sdk/types.js";var b=Q.union([Q.literal("light"),Q.literal("dark")]).describe("Color theme preference for the host environment."),J=Q.union([Q.literal("inline"),Q.literal("fullscreen"),Q.literal("pip")]).describe("Display mode for UI presentation."),KQ=Q.union([Q.literal("--color-background-primary"),Q.literal("--color-background-secondary"),Q.literal("--color-background-tertiary"),Q.literal("--color-background-inverse"),Q.literal("--color-background-ghost"),Q.literal("--color-background-info"),Q.literal("--color-background-danger"),Q.literal("--color-background-success"),Q.literal("--color-background-warning"),Q.literal("--color-background-disabled"),Q.literal("--color-text-primary"),Q.literal("--color-text-secondary"),Q.literal("--color-text-tertiary"),Q.literal("--color-text-inverse"),Q.literal("--color-text-ghost"),Q.literal("--color-text-info"),Q.literal("--color-text-danger"),Q.literal("--color-text-success"),Q.literal("--color-text-warning"),Q.literal("--color-text-disabled"),Q.literal("--color-border-primary"),Q.literal("--color-border-secondary"),Q.literal("--color-border-tertiary"),Q.literal("--color-border-inverse"),Q.literal("--color-border-ghost"),Q.literal("--color-border-info"),Q.literal("--color-border-danger"),Q.literal("--color-border-success"),Q.literal("--color-border-warning"),Q.literal("--color-border-disabled"),Q.literal("--color-ring-primary"),Q.literal("--color-ring-secondary"),Q.literal("--color-ring-inverse"),Q.literal("--color-ring-info"),Q.literal("--color-ring-danger"),Q.literal("--color-ring-success"),Q.literal("--color-ring-warning"),Q.literal("--font-sans"),Q.literal("--font-mono"),Q.literal("--font-weight-normal"),Q.literal("--font-weight-medium"),Q.literal("--font-weight-semibold"),Q.literal("--font-weight-bold"),Q.literal("--font-text-xs-size"),Q.literal("--font-text-sm-size"),Q.literal("--font-text-md-size"),Q.literal("--font-text-lg-size"),Q.literal("--font-heading-xs-size"),Q.literal("--font-heading-sm-size"),Q.literal("--font-heading-md-size"),Q.literal("--font-heading-lg-size"),Q.literal("--font-heading-xl-size"),Q.literal("--font-heading-2xl-size"),Q.literal("--font-heading-3xl-size"),Q.literal("--font-text-xs-line-height"),Q.literal("--font-text-sm-line-height"),Q.literal("--font-text-md-line-height"),Q.literal("--font-text-lg-line-height"),Q.literal("--font-heading-xs-line-height"),Q.literal("--font-heading-sm-line-height"),Q.literal("--font-heading-md-line-height"),Q.literal("--font-heading-lg-line-height"),Q.literal("--font-heading-xl-line-height"),Q.literal("--font-heading-2xl-line-height"),Q.literal("--font-heading-3xl-line-height"),Q.literal("--border-radius-xs"),Q.literal("--border-radius-sm"),Q.literal("--border-radius-md"),Q.literal("--border-radius-lg"),Q.literal("--border-radius-xl"),Q.literal("--border-radius-full"),Q.literal("--border-width-regular"),Q.literal("--shadow-hairline"),Q.literal("--shadow-sm"),Q.literal("--shadow-md"),Q.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),GQ=Q.record(KQ.describe(`Style variables for theming MCP apps.
		import{Protocol as qQ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as TQ,CallToolResultSchema as RQ,EmptyResultSchema as UQ,ListResourcesResultSchema as HQ,ListToolsRequestSchema as MQ,PingRequestSchema as vQ,ReadResourceResultSchema as bQ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as t}from"@modelcontextprotocol/sdk/types.js";var E="2026-01-26",y="ui/open-link",u="ui/download-file",f="ui/message",d="ui/notifications/sandbox-proxy-ready",h="ui/notifications/sandbox-resource-ready",m="ui/notifications/size-changed",i="ui/notifications/tool-input",z="ui/notifications/tool-input-partial",l="ui/notifications/tool-result",r="ui/notifications/tool-cancelled",c="ui/notifications/host-context-changed",p="ui/notifications/request-teardown",n="ui/resource-teardown",a="ui/initialize",o="ui/notifications/initialized",s="ui/request-display-mode";class K{eventTarget;eventSource;messageListener;constructor(X=window.parent,Y){this.eventTarget=X;this.eventSource=Y;this.messageListener=(Z)=>{if(Y&&Z.source!==this.eventSource){console.debug("Ignoring message from unknown source",Z);return}let $=t.safeParse(Z.data);if($.success)console.debug("Parsed message",$.data),this.onmessage?.($.data);else if(Z.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",$.error.message,Z);else console.error("Failed to parse message",$.error.message,Z),this.onerror?.(Error("Invalid JSON-RPC message received: "+$.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(X,Y){if(X.method!==z)console.debug("Sending message",X);this.eventTarget.postMessage(X,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}import{z as Q}from"zod/v4";import{ContentBlockSchema as H,CallToolResultSchema as e,EmbeddedResourceSchema as QQ,ImplementationSchema as M,RequestIdSchema as XQ,ResourceLinkSchema as YQ,ToolSchema as ZQ}from"@modelcontextprotocol/sdk/types.js";var v=Q.union([Q.literal("light"),Q.literal("dark")]).describe("Color theme preference for the host environment."),D=Q.union([Q.literal("inline"),Q.literal("fullscreen"),Q.literal("pip")]).describe("Display mode for UI presentation."),$Q=Q.union([Q.literal("--color-background-primary"),Q.literal("--color-background-secondary"),Q.literal("--color-background-tertiary"),Q.literal("--color-background-inverse"),Q.literal("--color-background-ghost"),Q.literal("--color-background-info"),Q.literal("--color-background-danger"),Q.literal("--color-background-success"),Q.literal("--color-background-warning"),Q.literal("--color-background-disabled"),Q.literal("--color-text-primary"),Q.literal("--color-text-secondary"),Q.literal("--color-text-tertiary"),Q.literal("--color-text-inverse"),Q.literal("--color-text-ghost"),Q.literal("--color-text-info"),Q.literal("--color-text-danger"),Q.literal("--color-text-success"),Q.literal("--color-text-warning"),Q.literal("--color-text-disabled"),Q.literal("--color-border-primary"),Q.literal("--color-border-secondary"),Q.literal("--color-border-tertiary"),Q.literal("--color-border-inverse"),Q.literal("--color-border-ghost"),Q.literal("--color-border-info"),Q.literal("--color-border-danger"),Q.literal("--color-border-success"),Q.literal("--color-border-warning"),Q.literal("--color-border-disabled"),Q.literal("--color-ring-primary"),Q.literal("--color-ring-secondary"),Q.literal("--color-ring-inverse"),Q.literal("--color-ring-info"),Q.literal("--color-ring-danger"),Q.literal("--color-ring-success"),Q.literal("--color-ring-warning"),Q.literal("--font-sans"),Q.literal("--font-mono"),Q.literal("--font-weight-normal"),Q.literal("--font-weight-medium"),Q.literal("--font-weight-semibold"),Q.literal("--font-weight-bold"),Q.literal("--font-text-xs-size"),Q.literal("--font-text-sm-size"),Q.literal("--font-text-md-size"),Q.literal("--font-text-lg-size"),Q.literal("--font-heading-xs-size"),Q.literal("--font-heading-sm-size"),Q.literal("--font-heading-md-size"),Q.literal("--font-heading-lg-size"),Q.literal("--font-heading-xl-size"),Q.literal("--font-heading-2xl-size"),Q.literal("--font-heading-3xl-size"),Q.literal("--font-text-xs-line-height"),Q.literal("--font-text-sm-line-height"),Q.literal("--font-text-md-line-height"),Q.literal("--font-text-lg-line-height"),Q.literal("--font-heading-xs-line-height"),Q.literal("--font-heading-sm-line-height"),Q.literal("--font-heading-md-line-height"),Q.literal("--font-heading-lg-line-height"),Q.literal("--font-heading-xl-line-height"),Q.literal("--font-heading-2xl-line-height"),Q.literal("--font-heading-3xl-line-height"),Q.literal("--border-radius-xs"),Q.literal("--border-radius-sm"),Q.literal("--border-radius-md"),Q.literal("--border-radius-lg"),Q.literal("--border-radius-xl"),Q.literal("--border-radius-full"),Q.literal("--border-width-regular"),Q.literal("--shadow-hairline"),Q.literal("--shadow-sm"),Q.literal("--shadow-md"),Q.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),DQ=Q.record($Q.describe(`Style variables for theming MCP apps.

		@@ -19,6 +19,6 @@ Individual style keys are optional - hosts may provide any subset of these values.
		Note: This type uses \`Record<K, string \| undefined>\` rather than \`Partial<Record<K, string>>\`
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),VQ=Q.object({method:Q.literal("ui/open-link"),params:Q.object({url:Q.string().describe("URL to open in the host's browser")})}),B=Q.object({isError:Q.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),_=Q.object({isError:Q.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),O=Q.object({isError:Q.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),NQ=Q.object({method:Q.literal("ui/notifications/sandbox-proxy-ready"),params:Q.object({})}),G=Q.object({connectDomains:Q.array(Q.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),JQ=Q.object({method:Q.literal("ui/open-link"),params:Q.object({url:Q.string().describe("URL to open in the host's browser")})}),B=Q.object({isError:Q.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),_=Q.object({isError:Q.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),O=Q.object({isError:Q.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),KQ=Q.object({method:Q.literal("ui/notifications/sandbox-proxy-ready"),params:Q.object({})}),G=Q.object({connectDomains:Q.array(Q.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).

		- Maps to CSP \`connect-src\` directive
		- Empty or omitted → no network connections (secure default)`),resourceDomains:Q.array(Q.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:Q.array(Q.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:Q.array(Q.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),V=Q.object({camera:Q.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:Q.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:Q.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:Q.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),jQ=Q.object({method:Q.literal("ui/notifications/size-changed"),params:Q.object({width:Q.number().optional().describe("New width in pixels."),height:Q.number().optional().describe("New height in pixels.")})}),I=Q.object({method:Q.literal("ui/notifications/tool-input"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),w=Q.object({method:Q.literal("ui/notifications/tool-input-partial"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),A=Q.object({method:Q.literal("ui/notifications/tool-cancelled"),params:Q.object({reason:Q.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),k=Q.object({fonts:Q.string().optional()}),C=Q.object({variables:GQ.optional().describe("CSS variables for theming the app."),css:k.optional().describe("CSS blocks that apps can inject.")}),F=Q.object({method:Q.literal("ui/resource-teardown"),params:Q.object({})}),EQ=Q.record(Q.string(),Q.unknown()),L=Q.object({text:Q.object({}).optional().describe("Host supports text content blocks."),image:Q.object({}).optional().describe("Host supports image content blocks."),audio:Q.object({}).optional().describe("Host supports audio content blocks."),resource:Q.object({}).optional().describe("Host supports resource content blocks."),resourceLink:Q.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:Q.object({}).optional().describe("Host supports structured content.")}),WQ=Q.object({method:Q.literal("ui/notifications/request-teardown"),params:Q.object({}).optional()}),x=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:Q.object({}).optional().describe("Host supports opening external URLs."),downloadFile:Q.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:Q.object({listChanged:Q.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:Q.object({listChanged:Q.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:Q.object({}).optional().describe("Host accepts log messages."),sandbox:Q.object({permissions:V.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:G.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:L.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:L.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),g=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),tools:Q.object({listChanged:Q.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:Q.array(J).optional().describe("Display modes the app supports.")}),zQ=Q.object({method:Q.literal("ui/notifications/initialized"),params:Q.object({}).optional()}),LQ=Q.object({csp:G.optional().describe("Content Security Policy configuration for UI resources."),permissions:V.optional().describe("Sandbox permissions requested by the UI resource."),domain:Q.string().optional().describe(`Dedicated origin for view sandbox.
		- Empty or omitted → no network connections (secure default)`),resourceDomains:Q.array(Q.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:Q.array(Q.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:Q.array(Q.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),V=Q.object({camera:Q.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:Q.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:Q.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:Q.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),GQ=Q.object({method:Q.literal("ui/notifications/size-changed"),params:Q.object({width:Q.number().optional().describe("New width in pixels."),height:Q.number().optional().describe("New height in pixels.")})}),I=Q.object({method:Q.literal("ui/notifications/tool-input"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),w=Q.object({method:Q.literal("ui/notifications/tool-input-partial"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),A=Q.object({method:Q.literal("ui/notifications/tool-cancelled"),params:Q.object({reason:Q.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),b=Q.object({fonts:Q.string().optional()}),k=Q.object({variables:DQ.optional().describe("CSS variables for theming the app."),css:b.optional().describe("CSS blocks that apps can inject.")}),F=Q.object({method:Q.literal("ui/resource-teardown"),params:Q.object({})}),VQ=Q.record(Q.string(),Q.unknown()),L=Q.object({text:Q.object({}).optional().describe("Host supports text content blocks."),image:Q.object({}).optional().describe("Host supports image content blocks."),audio:Q.object({}).optional().describe("Host supports audio content blocks."),resource:Q.object({}).optional().describe("Host supports resource content blocks."),resourceLink:Q.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:Q.object({}).optional().describe("Host supports structured content.")}),WQ=Q.object({method:Q.literal("ui/notifications/request-teardown"),params:Q.object({}).optional()}),C=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:Q.object({}).optional().describe("Host supports opening external URLs."),downloadFile:Q.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:Q.object({listChanged:Q.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:Q.object({listChanged:Q.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:Q.object({}).optional().describe("Host accepts log messages."),sandbox:Q.object({permissions:V.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:G.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:L.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:L.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),x=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),tools:Q.object({listChanged:Q.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:Q.array(D).optional().describe("Display modes the app supports.")}),NQ=Q.object({method:Q.literal("ui/notifications/initialized"),params:Q.object({}).optional()}),jQ=Q.object({csp:G.optional().describe("Content Security Policy configuration for UI resources."),permissions:V.optional().describe("Sandbox permissions requested by the UI resource."),domain:Q.string().optional().describe(`Dedicated origin for view sandbox.

		@@ -37,5 +37,5 @@ Useful when views need stable, dedicated origins for OAuth callbacks, CORS policies, or API key allowlists.
		- \`false\`: request no visible border + background
		- omitted: host decides border`)}),BQ=Q.object({method:Q.literal("ui/request-display-mode"),params:Q.object({mode:J.describe("The display mode being requested.")})}),P=Q.object({mode:J.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),S=Q.union([Q.literal("model"),Q.literal("app")]).describe("Tool visibility scope - who can access the tool."),_Q=Q.object({resourceUri:Q.string().optional(),visibility:Q.array(S).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- omitted: host decides border`)}),EQ=Q.object({method:Q.literal("ui/request-display-mode"),params:Q.object({mode:D.describe("The display mode being requested.")})}),P=Q.object({mode:D.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),g=Q.union([Q.literal("model"),Q.literal("app")]).describe("Tool visibility scope - who can access the tool."),zQ=Q.object({resourceUri:Q.string().optional(),visibility:Q.array(g).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- "model": Tool visible to and callable by the agent
		- "app": Tool callable by the app from this server only`)}),lQ=Q.object({mimeTypes:Q.array(Q.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),OQ=Q.object({method:Q.literal("ui/download-file"),params:Q.object({contents:Q.array(Q.union([ZQ,DQ])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),IQ=Q.object({method:Q.literal("ui/message"),params:Q.object({role:Q.literal("user").describe('Message role, currently only "user" is supported.'),content:Q.array(M).describe("Message content blocks (text, image, etc.).")})}),wQ=Q.object({method:Q.literal("ui/notifications/sandbox-resource-ready"),params:Q.object({html:Q.string().describe("HTML content to load into the inner iframe."),sandbox:Q.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:G.optional().describe("CSP configuration from resource metadata."),permissions:V.optional().describe("Sandbox permissions from resource metadata.")})}),q=Q.object({method:Q.literal("ui/notifications/tool-result"),params:YQ.describe("Standard MCP tool execution result.")}),T=Q.object({toolInfo:Q.object({id:$Q.optional().describe("JSON-RPC id of the tools/call request."),tool:JQ.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:b.optional().describe("Current color theme preference."),styles:C.optional().describe("Style configuration for theming the app."),displayMode:J.optional().describe("How the UI is currently displayed."),availableDisplayModes:Q.array(J).optional().describe("Display modes the host supports."),containerDimensions:Q.union([Q.object({height:Q.number().describe("Fixed container height in pixels.")}),Q.object({maxHeight:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(Q.union([Q.object({width:Q.number().describe("Fixed container width in pixels.")}),Q.object({maxWidth:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:Q.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:Q.string().optional().describe("User's timezone in IANA format."),userAgent:Q.string().optional().describe("Host application identifier."),platform:Q.union([Q.literal("web"),Q.literal("desktop"),Q.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:Q.object({touch:Q.boolean().optional().describe("Whether the device supports touch input."),hover:Q.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:Q.object({top:Q.number().describe("Top safe area inset in pixels."),right:Q.number().describe("Right safe area inset in pixels."),bottom:Q.number().describe("Bottom safe area inset in pixels."),left:Q.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),R=Q.object({method:Q.literal("ui/notifications/host-context-changed"),params:T.describe("Partial context update containing only changed fields.")}),AQ=Q.object({method:Q.literal("ui/update-model-context"),params:Q.object({content:Q.array(M).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:Q.record(Q.string(),Q.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),FQ=Q.object({method:Q.literal("ui/initialize"),params:Q.object({appInfo:v.describe("App identification (name and version)."),appCapabilities:g.describe("Features and capabilities this app provides."),protocolVersion:Q.string().describe("Protocol version this app supports.")})}),U=Q.object({protocolVersion:Q.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:v.describe("Host application identification and version."),hostCapabilities:x.describe("Features and capabilities provided by the host."),hostContext:T.describe("Rich context about the host environment.")}).passthrough();function PQ(){let X=document.documentElement.getAttribute("data-theme");if(X==="dark"\|\|X==="light")return X;return document.documentElement.classList.contains("dark")?"dark":"light"}function qQ(X){let Y=document.documentElement;Y.setAttribute("data-theme",X),Y.style.colorScheme=X}function TQ(X,Y=document.documentElement){for(let[Z,$]of Object.entries(X))if($!==void 0)Y.style.setProperty(Z,$)}function RQ(X){if(document.getElementById("__mcp-host-fonts"))return;let Z=document.createElement("style");Z.id="__mcp-host-fonts",Z.textContent=X,document.head.appendChild(Z)}var MX="ui/resourceUri",vX="text/html;profile=mcp-app";class gQ extends UQ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(X,Y={},Z={autoResize:!0}){super(Z);this._appInfo=X;this._capabilities=Y;this.options=Z;this.setRequestHandler(CQ,($)=>{return console.log("Received ping:",$.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(X){this.setNotificationHandler(I,(Y)=>X(Y.params))}set ontoolinputpartial(X){this.setNotificationHandler(w,(Y)=>X(Y.params))}set ontoolresult(X){this.setNotificationHandler(q,(Y)=>X(Y.params))}set ontoolcancelled(X){this.setNotificationHandler(A,(Y)=>X(Y.params))}set onhostcontextchanged(X){this.setNotificationHandler(R,(Y)=>{this._hostContext={...this._hostContext,...Y.params},X(Y.params)})}set onteardown(X){this.setRequestHandler(F,(Y,Z)=>X(Y.params,Z))}set oncalltool(X){this.setRequestHandler(HQ,(Y,Z)=>X(Y.params,Z))}set onlisttools(X){this.setRequestHandler(kQ,(Y,Z)=>X(Y.params,Z))}assertCapabilityForMethod(X){}assertRequestHandlerCapability(X){switch(X){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${X})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${X} registered`)}}assertNotificationCapability(X){}assertTaskCapability(X){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(X){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(X,Y){if(typeof X==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${X}"). Did you mean: callServerTool({ name: "${X}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:X},MQ,Y)}async readServerResource(X,Y){return await this.request({method:"resources/read",params:X},xQ,Y)}async listServerResources(X,Y){return await this.request({method:"resources/list",params:X},bQ,Y)}sendMessage(X,Y){return this.request({method:"ui/message",params:X},O,Y)}sendLog(X){return this.notification({method:"notifications/message",params:X})}updateModelContext(X,Y){return this.request({method:"ui/update-model-context",params:X},vQ,Y)}openLink(X,Y){return this.request({method:"ui/open-link",params:X},B,Y)}sendOpenLink=this.openLink;downloadFile(X,Y){return this.request({method:"ui/download-file",params:X},_,Y)}requestTeardown(X={}){return this.notification({method:"ui/notifications/request-teardown",params:X})}requestDisplayMode(X,Y){return this.request({method:"ui/request-display-mode",params:X},P,Y)}sendSizeChanged(X){return this.notification({method:"ui/notifications/size-changed",params:X})}setupSizeChangedNotifications(){let X=!1,Y=0,Z=0,$=()=>{if(X)return;X=!0,requestAnimationFrame(()=>{X=!1;let D=document.documentElement,y=D.style.width,u=D.style.height;D.style.width="fit-content",D.style.height="max-content";let H=D.getBoundingClientRect();D.style.width=y,D.style.height=u;let f=window.innerWidth-D.clientWidth,j=Math.ceil(H.width+f),E=Math.ceil(H.height);if(j!==Y\|\|E!==Z)Y=j,Z=E,this.sendSizeChanged({width:j,height:E})})};$();let N=new ResizeObserver($);return N.observe(document.documentElement),N.observe(document.body),()=>N.disconnect()}async connect(X=new K(window.parent,window.parent),Y){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(X);try{let Z=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:W}},U,Y);if(Z===void 0)throw Error(`Server sent invalid initialize result: ${Z}`);if(this._hostCapabilities=Z.hostCapabilities,this._hostInfo=Z.hostInfo,this._hostContext=Z.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(Z){throw this.close(),Z}}}export{PQ as getDocumentTheme,TQ as applyHostStyleVariables,RQ as applyHostFonts,qQ as applyDocumentTheme,c as TOOL_RESULT_METHOD,z as TOOL_INPUT_PARTIAL_METHOD,p as TOOL_INPUT_METHOD,n as TOOL_CANCELLED_METHOD,r as SIZE_CHANGED_METHOD,l as SANDBOX_RESOURCE_READY_METHOD,i as SANDBOX_PROXY_READY_METHOD,MX as RESOURCE_URI_META_KEY,s as RESOURCE_TEARDOWN_METHOD,vX as RESOURCE_MIME_TYPE,o as REQUEST_TEARDOWN_METHOD,QQ as REQUEST_DISPLAY_MODE_METHOD,K as PostMessageTransport,d as OPEN_LINK_METHOD,AQ as McpUiUpdateModelContextRequestSchema,S as McpUiToolVisibilitySchema,q as McpUiToolResultNotificationSchema,_Q as McpUiToolMetaSchema,w as McpUiToolInputPartialNotificationSchema,I as McpUiToolInputNotificationSchema,A as McpUiToolCancelledNotificationSchema,b as McpUiThemeSchema,L as McpUiSupportedContentBlockModalitiesSchema,jQ as McpUiSizeChangedNotificationSchema,wQ as McpUiSandboxResourceReadyNotificationSchema,NQ as McpUiSandboxProxyReadyNotificationSchema,EQ as McpUiResourceTeardownResultSchema,F as McpUiResourceTeardownRequestSchema,V as McpUiResourcePermissionsSchema,LQ as McpUiResourceMetaSchema,G as McpUiResourceCspSchema,WQ as McpUiRequestTeardownNotificationSchema,P as McpUiRequestDisplayModeResultSchema,BQ as McpUiRequestDisplayModeRequestSchema,B as McpUiOpenLinkResultSchema,VQ as McpUiOpenLinkRequestSchema,O as McpUiMessageResultSchema,IQ as McpUiMessageRequestSchema,zQ as McpUiInitializedNotificationSchema,U as McpUiInitializeResultSchema,FQ as McpUiInitializeRequestSchema,C as McpUiHostStylesSchema,k as McpUiHostCssSchema,T as McpUiHostContextSchema,R as McpUiHostContextChangedNotificationSchema,x as McpUiHostCapabilitiesSchema,_ as McpUiDownloadFileResultSchema,OQ as McpUiDownloadFileRequestSchema,J as McpUiDisplayModeSchema,g as McpUiAppCapabilitiesSchema,m as MESSAGE_METHOD,W as LATEST_PROTOCOL_VERSION,t as INITIALIZE_METHOD,e as INITIALIZED_METHOD,a as HOST_CONTEXT_CHANGED_METHOD,h as DOWNLOAD_FILE_METHOD,gQ as App};
		- "app": Tool callable by the app from this server only`)}),hQ=Q.object({mimeTypes:Q.array(Q.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),LQ=Q.object({method:Q.literal("ui/download-file"),params:Q.object({contents:Q.array(Q.union([QQ,YQ])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),BQ=Q.object({method:Q.literal("ui/message"),params:Q.object({role:Q.literal("user").describe('Message role, currently only "user" is supported.'),content:Q.array(H).describe("Message content blocks (text, image, etc.).")})}),_Q=Q.object({method:Q.literal("ui/notifications/sandbox-resource-ready"),params:Q.object({html:Q.string().describe("HTML content to load into the inner iframe."),sandbox:Q.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:G.optional().describe("CSP configuration from resource metadata."),permissions:V.optional().describe("Sandbox permissions from resource metadata.")})}),q=Q.object({method:Q.literal("ui/notifications/tool-result"),params:e.describe("Standard MCP tool execution result.")}),T=Q.object({toolInfo:Q.object({id:XQ.optional().describe("JSON-RPC id of the tools/call request."),tool:ZQ.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:v.optional().describe("Current color theme preference."),styles:k.optional().describe("Style configuration for theming the app."),displayMode:D.optional().describe("How the UI is currently displayed."),availableDisplayModes:Q.array(D).optional().describe("Display modes the host supports."),containerDimensions:Q.union([Q.object({height:Q.number().describe("Fixed container height in pixels.")}),Q.object({maxHeight:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(Q.union([Q.object({width:Q.number().describe("Fixed container width in pixels.")}),Q.object({maxWidth:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:Q.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:Q.string().optional().describe("User's timezone in IANA format."),userAgent:Q.string().optional().describe("Host application identifier."),platform:Q.union([Q.literal("web"),Q.literal("desktop"),Q.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:Q.object({touch:Q.boolean().optional().describe("Whether the device supports touch input."),hover:Q.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:Q.object({top:Q.number().describe("Top safe area inset in pixels."),right:Q.number().describe("Right safe area inset in pixels."),bottom:Q.number().describe("Bottom safe area inset in pixels."),left:Q.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),R=Q.object({method:Q.literal("ui/notifications/host-context-changed"),params:T.describe("Partial context update containing only changed fields.")}),OQ=Q.object({method:Q.literal("ui/update-model-context"),params:Q.object({content:Q.array(H).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:Q.record(Q.string(),Q.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),IQ=Q.object({method:Q.literal("ui/initialize"),params:Q.object({appInfo:M.describe("App identification (name and version)."),appCapabilities:x.describe("Features and capabilities this app provides."),protocolVersion:Q.string().describe("Protocol version this app supports.")})}),U=Q.object({protocolVersion:Q.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:M.describe("Host application identification and version."),hostCapabilities:C.describe("Features and capabilities provided by the host."),hostContext:T.describe("Rich context about the host environment.")}).passthrough();function wQ(){let X=document.documentElement.getAttribute("data-theme");if(X==="dark"\|\|X==="light")return X;return document.documentElement.classList.contains("dark")?"dark":"light"}function AQ(X){let Y=document.documentElement;Y.setAttribute("data-theme",X),Y.style.colorScheme=X}function FQ(X,Y=document.documentElement){for(let[Z,$]of Object.entries(X))if($!==void 0)Y.style.setProperty(Z,$)}function PQ(X){if(document.getElementById("__mcp-host-fonts"))return;let Z=document.createElement("style");Z.id="__mcp-host-fonts",Z.textContent=X,document.head.appendChild(Z)}var RX="ui/resourceUri",UX="text/html;profile=mcp-app";class kQ extends qQ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(X,Y={},Z={autoResize:!0}){super(Z);this._appInfo=X;this._capabilities=Y;this.options=Z;this.setRequestHandler(vQ,($)=>{return console.log("Received ping:",$.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(X){this.setNotificationHandler(I,(Y)=>X(Y.params))}set ontoolinputpartial(X){this.setNotificationHandler(w,(Y)=>X(Y.params))}set ontoolresult(X){this.setNotificationHandler(q,(Y)=>X(Y.params))}set ontoolcancelled(X){this.setNotificationHandler(A,(Y)=>X(Y.params))}set onhostcontextchanged(X){this.setNotificationHandler(R,(Y)=>{this._hostContext={...this._hostContext,...Y.params},X(Y.params)})}set onteardown(X){this.setRequestHandler(F,(Y,Z)=>X(Y.params,Z))}set oncalltool(X){this.setRequestHandler(TQ,(Y,Z)=>X(Y.params,Z))}set onlisttools(X){this.setRequestHandler(MQ,(Y,Z)=>X(Y.params,Z))}assertCapabilityForMethod(X){}assertRequestHandlerCapability(X){switch(X){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${X})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${X} registered`)}}assertNotificationCapability(X){}assertTaskCapability(X){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(X){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(X,Y){if(typeof X==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${X}"). Did you mean: callServerTool({ name: "${X}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:X},RQ,Y)}async readServerResource(X,Y){return await this.request({method:"resources/read",params:X},bQ,Y)}async listServerResources(X,Y){return await this.request({method:"resources/list",params:X},HQ,Y)}sendMessage(X,Y){return this.request({method:"ui/message",params:X},O,Y)}sendLog(X){return this.notification({method:"notifications/message",params:X})}updateModelContext(X,Y){return this.request({method:"ui/update-model-context",params:X},UQ,Y)}openLink(X,Y){return this.request({method:"ui/open-link",params:X},B,Y)}sendOpenLink=this.openLink;downloadFile(X,Y){return this.request({method:"ui/download-file",params:X},_,Y)}requestTeardown(X={}){return this.notification({method:"ui/notifications/request-teardown",params:X})}requestDisplayMode(X,Y){return this.request({method:"ui/request-display-mode",params:X},P,Y)}sendSizeChanged(X){return this.notification({method:"ui/notifications/size-changed",params:X})}setupSizeChangedNotifications(){let X=!1,Y=0,Z=0,$=()=>{if(X)return;X=!0,requestAnimationFrame(()=>{X=!1;let J=document.documentElement,S=J.style.height;J.style.height="max-content";let N=Math.ceil(J.getBoundingClientRect().height);J.style.height=S;let j=Math.ceil(window.innerWidth);if(j!==Y\|\|N!==Z)Y=j,Z=N,this.sendSizeChanged({width:j,height:N})})};$();let W=new ResizeObserver($);return W.observe(document.documentElement),W.observe(document.body),()=>W.disconnect()}async connect(X=new K(window.parent,window.parent),Y){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(X);try{let Z=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:E}},U,Y);if(Z===void 0)throw Error(`Server sent invalid initialize result: ${Z}`);if(this._hostCapabilities=Z.hostCapabilities,this._hostInfo=Z.hostInfo,this._hostContext=Z.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(Z){throw this.close(),Z}}}export{wQ as getDocumentTheme,FQ as applyHostStyleVariables,PQ as applyHostFonts,AQ as applyDocumentTheme,l as TOOL_RESULT_METHOD,z as TOOL_INPUT_PARTIAL_METHOD,i as TOOL_INPUT_METHOD,r as TOOL_CANCELLED_METHOD,m as SIZE_CHANGED_METHOD,h as SANDBOX_RESOURCE_READY_METHOD,d as SANDBOX_PROXY_READY_METHOD,RX as RESOURCE_URI_META_KEY,n as RESOURCE_TEARDOWN_METHOD,UX as RESOURCE_MIME_TYPE,p as REQUEST_TEARDOWN_METHOD,s as REQUEST_DISPLAY_MODE_METHOD,K as PostMessageTransport,y as OPEN_LINK_METHOD,OQ as McpUiUpdateModelContextRequestSchema,g as McpUiToolVisibilitySchema,q as McpUiToolResultNotificationSchema,zQ as McpUiToolMetaSchema,w as McpUiToolInputPartialNotificationSchema,I as McpUiToolInputNotificationSchema,A as McpUiToolCancelledNotificationSchema,v as McpUiThemeSchema,L as McpUiSupportedContentBlockModalitiesSchema,GQ as McpUiSizeChangedNotificationSchema,_Q as McpUiSandboxResourceReadyNotificationSchema,KQ as McpUiSandboxProxyReadyNotificationSchema,VQ as McpUiResourceTeardownResultSchema,F as McpUiResourceTeardownRequestSchema,V as McpUiResourcePermissionsSchema,jQ as McpUiResourceMetaSchema,G as McpUiResourceCspSchema,WQ as McpUiRequestTeardownNotificationSchema,P as McpUiRequestDisplayModeResultSchema,EQ as McpUiRequestDisplayModeRequestSchema,B as McpUiOpenLinkResultSchema,JQ as McpUiOpenLinkRequestSchema,O as McpUiMessageResultSchema,BQ as McpUiMessageRequestSchema,NQ as McpUiInitializedNotificationSchema,U as McpUiInitializeResultSchema,IQ as McpUiInitializeRequestSchema,k as McpUiHostStylesSchema,b as McpUiHostCssSchema,T as McpUiHostContextSchema,R as McpUiHostContextChangedNotificationSchema,C as McpUiHostCapabilitiesSchema,_ as McpUiDownloadFileResultSchema,LQ as McpUiDownloadFileRequestSchema,D as McpUiDisplayModeSchema,x as McpUiAppCapabilitiesSchema,f as MESSAGE_METHOD,E as LATEST_PROTOCOL_VERSION,a as INITIALIZE_METHOD,o as INITIALIZED_METHOD,c as HOST_CONTEXT_CHANGED_METHOD,u as DOWNLOAD_FILE_METHOD,kQ as App};

+6

-6

dist/src/react/index.js

		@@ -1,2 +0,2 @@
		import{useEffect as uJ,useState as d}from"react";import{Protocol as bJ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as SJ,CallToolResultSchema as CJ,EmptyResultSchema as gJ,ListResourcesResultSchema as xJ,ListToolsRequestSchema as yJ,PingRequestSchema as fJ,ReadResourceResultSchema as dJ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as LJ}from"@modelcontextprotocol/sdk/types.js";var z="2026-01-26",o="ui/open-link",a="ui/download-file",s="ui/message",t="ui/notifications/sandbox-proxy-ready",e="ui/notifications/sandbox-resource-ready",JJ="ui/notifications/size-changed",KJ="ui/notifications/tool-input",U="ui/notifications/tool-input-partial",QJ="ui/notifications/tool-result",XJ="ui/notifications/tool-cancelled",YJ="ui/notifications/host-context-changed",ZJ="ui/notifications/request-teardown",$J="ui/resource-teardown",GJ="ui/initialize",jJ="ui/notifications/initialized",WJ="ui/request-display-mode";class j{eventTarget;eventSource;messageListener;constructor(K=window.parent,Q){this.eventTarget=K;this.eventSource=Q;this.messageListener=(X)=>{if(Q&&X.source!==this.eventSource){console.debug("Ignoring message from unknown source",X);return}let Y=LJ.safeParse(X.data);if(Y.success)console.debug("Parsed message",Y.data),this.onmessage?.(Y.data);else if(X.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",Y.error.message,X);else console.error("Failed to parse message",Y.error.message,X),this.onerror?.(Error("Invalid JSON-RPC message received: "+Y.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(K,Q){if(K.method!==U)console.debug("Sending message",K);this.eventTarget.postMessage(K,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}import{z as J}from"zod/v4";import{ContentBlockSchema as u,CallToolResultSchema as NJ,EmbeddedResourceSchema as BJ,ImplementationSchema as h,RequestIdSchema as VJ,ResourceLinkSchema as PJ,ToolSchema as _J}from"@modelcontextprotocol/sdk/types.js";var m=J.union([J.literal("light"),J.literal("dark")]).describe("Color theme preference for the host environment."),W=J.union([J.literal("inline"),J.literal("fullscreen"),J.literal("pip")]).describe("Display mode for UI presentation."),OJ=J.union([J.literal("--color-background-primary"),J.literal("--color-background-secondary"),J.literal("--color-background-tertiary"),J.literal("--color-background-inverse"),J.literal("--color-background-ghost"),J.literal("--color-background-info"),J.literal("--color-background-danger"),J.literal("--color-background-success"),J.literal("--color-background-warning"),J.literal("--color-background-disabled"),J.literal("--color-text-primary"),J.literal("--color-text-secondary"),J.literal("--color-text-tertiary"),J.literal("--color-text-inverse"),J.literal("--color-text-ghost"),J.literal("--color-text-info"),J.literal("--color-text-danger"),J.literal("--color-text-success"),J.literal("--color-text-warning"),J.literal("--color-text-disabled"),J.literal("--color-border-primary"),J.literal("--color-border-secondary"),J.literal("--color-border-tertiary"),J.literal("--color-border-inverse"),J.literal("--color-border-ghost"),J.literal("--color-border-info"),J.literal("--color-border-danger"),J.literal("--color-border-success"),J.literal("--color-border-warning"),J.literal("--color-border-disabled"),J.literal("--color-ring-primary"),J.literal("--color-ring-secondary"),J.literal("--color-ring-inverse"),J.literal("--color-ring-info"),J.literal("--color-ring-danger"),J.literal("--color-ring-success"),J.literal("--color-ring-warning"),J.literal("--font-sans"),J.literal("--font-mono"),J.literal("--font-weight-normal"),J.literal("--font-weight-medium"),J.literal("--font-weight-semibold"),J.literal("--font-weight-bold"),J.literal("--font-text-xs-size"),J.literal("--font-text-sm-size"),J.literal("--font-text-md-size"),J.literal("--font-text-lg-size"),J.literal("--font-heading-xs-size"),J.literal("--font-heading-sm-size"),J.literal("--font-heading-md-size"),J.literal("--font-heading-lg-size"),J.literal("--font-heading-xl-size"),J.literal("--font-heading-2xl-size"),J.literal("--font-heading-3xl-size"),J.literal("--font-text-xs-line-height"),J.literal("--font-text-sm-line-height"),J.literal("--font-text-md-line-height"),J.literal("--font-text-lg-line-height"),J.literal("--font-heading-xs-line-height"),J.literal("--font-heading-sm-line-height"),J.literal("--font-heading-md-line-height"),J.literal("--font-heading-lg-line-height"),J.literal("--font-heading-xl-line-height"),J.literal("--font-heading-2xl-line-height"),J.literal("--font-heading-3xl-line-height"),J.literal("--border-radius-xs"),J.literal("--border-radius-sm"),J.literal("--border-radius-md"),J.literal("--border-radius-lg"),J.literal("--border-radius-xl"),J.literal("--border-radius-full"),J.literal("--border-width-regular"),J.literal("--shadow-hairline"),J.literal("--shadow-sm"),J.literal("--shadow-md"),J.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),qJ=J.record(OJ.describe(`Style variables for theming MCP apps.
		import{useEffect as uJ,useState as f}from"react";import{Protocol as bJ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as SJ,CallToolResultSchema as CJ,EmptyResultSchema as gJ,ListResourcesResultSchema as xJ,ListToolsRequestSchema as yJ,PingRequestSchema as fJ,ReadResourceResultSchema as dJ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as LJ}from"@modelcontextprotocol/sdk/types.js";var R="2026-01-26",o="ui/open-link",a="ui/download-file",s="ui/message",t="ui/notifications/sandbox-proxy-ready",e="ui/notifications/sandbox-resource-ready",JJ="ui/notifications/size-changed",KJ="ui/notifications/tool-input",z="ui/notifications/tool-input-partial",QJ="ui/notifications/tool-result",XJ="ui/notifications/tool-cancelled",YJ="ui/notifications/host-context-changed",ZJ="ui/notifications/request-teardown",$J="ui/resource-teardown",GJ="ui/initialize",WJ="ui/notifications/initialized",jJ="ui/request-display-mode";class W{eventTarget;eventSource;messageListener;constructor(K=window.parent,Q){this.eventTarget=K;this.eventSource=Q;this.messageListener=(X)=>{if(Q&&X.source!==this.eventSource){console.debug("Ignoring message from unknown source",X);return}let Y=LJ.safeParse(X.data);if(Y.success)console.debug("Parsed message",Y.data),this.onmessage?.(Y.data);else if(X.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",Y.error.message,X);else console.error("Failed to parse message",Y.error.message,X),this.onerror?.(Error("Invalid JSON-RPC message received: "+Y.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(K,Q){if(K.method!==z)console.debug("Sending message",K);this.eventTarget.postMessage(K,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}import{z as J}from"zod/v4";import{ContentBlockSchema as d,CallToolResultSchema as NJ,EmbeddedResourceSchema as BJ,ImplementationSchema as u,RequestIdSchema as VJ,ResourceLinkSchema as PJ,ToolSchema as _J}from"@modelcontextprotocol/sdk/types.js";var h=J.union([J.literal("light"),J.literal("dark")]).describe("Color theme preference for the host environment."),j=J.union([J.literal("inline"),J.literal("fullscreen"),J.literal("pip")]).describe("Display mode for UI presentation."),OJ=J.union([J.literal("--color-background-primary"),J.literal("--color-background-secondary"),J.literal("--color-background-tertiary"),J.literal("--color-background-inverse"),J.literal("--color-background-ghost"),J.literal("--color-background-info"),J.literal("--color-background-danger"),J.literal("--color-background-success"),J.literal("--color-background-warning"),J.literal("--color-background-disabled"),J.literal("--color-text-primary"),J.literal("--color-text-secondary"),J.literal("--color-text-tertiary"),J.literal("--color-text-inverse"),J.literal("--color-text-ghost"),J.literal("--color-text-info"),J.literal("--color-text-danger"),J.literal("--color-text-success"),J.literal("--color-text-warning"),J.literal("--color-text-disabled"),J.literal("--color-border-primary"),J.literal("--color-border-secondary"),J.literal("--color-border-tertiary"),J.literal("--color-border-inverse"),J.literal("--color-border-ghost"),J.literal("--color-border-info"),J.literal("--color-border-danger"),J.literal("--color-border-success"),J.literal("--color-border-warning"),J.literal("--color-border-disabled"),J.literal("--color-ring-primary"),J.literal("--color-ring-secondary"),J.literal("--color-ring-inverse"),J.literal("--color-ring-info"),J.literal("--color-ring-danger"),J.literal("--color-ring-success"),J.literal("--color-ring-warning"),J.literal("--font-sans"),J.literal("--font-mono"),J.literal("--font-weight-normal"),J.literal("--font-weight-medium"),J.literal("--font-weight-semibold"),J.literal("--font-weight-bold"),J.literal("--font-text-xs-size"),J.literal("--font-text-sm-size"),J.literal("--font-text-md-size"),J.literal("--font-text-lg-size"),J.literal("--font-heading-xs-size"),J.literal("--font-heading-sm-size"),J.literal("--font-heading-md-size"),J.literal("--font-heading-lg-size"),J.literal("--font-heading-xl-size"),J.literal("--font-heading-2xl-size"),J.literal("--font-heading-3xl-size"),J.literal("--font-text-xs-line-height"),J.literal("--font-text-sm-line-height"),J.literal("--font-text-md-line-height"),J.literal("--font-text-lg-line-height"),J.literal("--font-heading-xs-line-height"),J.literal("--font-heading-sm-line-height"),J.literal("--font-heading-md-line-height"),J.literal("--font-heading-lg-line-height"),J.literal("--font-heading-xl-line-height"),J.literal("--font-heading-2xl-line-height"),J.literal("--font-heading-3xl-line-height"),J.literal("--border-radius-xs"),J.literal("--border-radius-sm"),J.literal("--border-radius-md"),J.literal("--border-radius-lg"),J.literal("--border-radius-xl"),J.literal("--border-radius-full"),J.literal("--border-width-regular"),J.literal("--shadow-hairline"),J.literal("--shadow-sm"),J.literal("--shadow-md"),J.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),qJ=J.record(OJ.describe(`Style variables for theming MCP apps.

		@@ -19,6 +19,6 @@ Individual style keys are optional - hosts may provide any subset of these values.
		Note: This type uses \`Record<K, string \| undefined>\` rather than \`Partial<Record<K, string>>\`
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),DJ=J.object({method:J.literal("ui/open-link"),params:J.object({url:J.string().describe("URL to open in the host's browser")})}),M=J.object({isError:J.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),T=J.object({isError:J.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),H=J.object({isError:J.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),IJ=J.object({method:J.literal("ui/notifications/sandbox-proxy-ready"),params:J.object({})}),P=J.object({connectDomains:J.array(J.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),DJ=J.object({method:J.literal("ui/open-link"),params:J.object({url:J.string().describe("URL to open in the host's browser")})}),w=J.object({isError:J.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),M=J.object({isError:J.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),T=J.object({isError:J.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),IJ=J.object({method:J.literal("ui/notifications/sandbox-proxy-ready"),params:J.object({})}),V=J.object({connectDomains:J.array(J.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).

		- Maps to CSP \`connect-src\` directive
		- Empty or omitted → no network connections (secure default)`),resourceDomains:J.array(J.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:J.array(J.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:J.array(J.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),_=J.object({camera:J.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:J.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:J.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:J.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),FJ=J.object({method:J.literal("ui/notifications/size-changed"),params:J.object({width:J.number().optional().describe("New width in pixels."),height:J.number().optional().describe("New height in pixels.")})}),v=J.object({method:J.literal("ui/notifications/tool-input"),params:J.object({arguments:J.record(J.string(),J.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),A=J.object({method:J.literal("ui/notifications/tool-input-partial"),params:J.object({arguments:J.record(J.string(),J.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),k=J.object({method:J.literal("ui/notifications/tool-cancelled"),params:J.object({reason:J.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),c=J.object({fonts:J.string().optional()}),r=J.object({variables:qJ.optional().describe("CSS variables for theming the app."),css:c.optional().describe("CSS blocks that apps can inject.")}),b=J.object({method:J.literal("ui/resource-teardown"),params:J.object({})}),EJ=J.record(J.string(),J.unknown()),w=J.object({text:J.object({}).optional().describe("Host supports text content blocks."),image:J.object({}).optional().describe("Host supports image content blocks."),audio:J.object({}).optional().describe("Host supports audio content blocks."),resource:J.object({}).optional().describe("Host supports resource content blocks."),resourceLink:J.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:J.object({}).optional().describe("Host supports structured content.")}),RJ=J.object({method:J.literal("ui/notifications/request-teardown"),params:J.object({}).optional()}),l=J.object({experimental:J.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:J.object({}).optional().describe("Host supports opening external URLs."),downloadFile:J.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:J.object({listChanged:J.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:J.object({listChanged:J.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:J.object({}).optional().describe("Host accepts log messages."),sandbox:J.object({permissions:_.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:P.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:w.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:w.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),i=J.object({experimental:J.object({}).optional().describe("Experimental features (structure TBD)."),tools:J.object({listChanged:J.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:J.array(W).optional().describe("Display modes the app supports.")}),zJ=J.object({method:J.literal("ui/notifications/initialized"),params:J.object({}).optional()}),UJ=J.object({csp:P.optional().describe("Content Security Policy configuration for UI resources."),permissions:_.optional().describe("Sandbox permissions requested by the UI resource."),domain:J.string().optional().describe(`Dedicated origin for view sandbox.
		- Empty or omitted → no network connections (secure default)`),resourceDomains:J.array(J.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:J.array(J.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:J.array(J.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),P=J.object({camera:J.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:J.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:J.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:J.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),FJ=J.object({method:J.literal("ui/notifications/size-changed"),params:J.object({width:J.number().optional().describe("New width in pixels."),height:J.number().optional().describe("New height in pixels.")})}),H=J.object({method:J.literal("ui/notifications/tool-input"),params:J.object({arguments:J.record(J.string(),J.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),v=J.object({method:J.literal("ui/notifications/tool-input-partial"),params:J.object({arguments:J.record(J.string(),J.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),A=J.object({method:J.literal("ui/notifications/tool-cancelled"),params:J.object({reason:J.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),m=J.object({fonts:J.string().optional()}),c=J.object({variables:qJ.optional().describe("CSS variables for theming the app."),css:m.optional().describe("CSS blocks that apps can inject.")}),k=J.object({method:J.literal("ui/resource-teardown"),params:J.object({})}),EJ=J.record(J.string(),J.unknown()),U=J.object({text:J.object({}).optional().describe("Host supports text content blocks."),image:J.object({}).optional().describe("Host supports image content blocks."),audio:J.object({}).optional().describe("Host supports audio content blocks."),resource:J.object({}).optional().describe("Host supports resource content blocks."),resourceLink:J.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:J.object({}).optional().describe("Host supports structured content.")}),RJ=J.object({method:J.literal("ui/notifications/request-teardown"),params:J.object({}).optional()}),r=J.object({experimental:J.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:J.object({}).optional().describe("Host supports opening external URLs."),downloadFile:J.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:J.object({listChanged:J.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:J.object({listChanged:J.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:J.object({}).optional().describe("Host accepts log messages."),sandbox:J.object({permissions:P.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:V.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:U.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:U.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),l=J.object({experimental:J.object({}).optional().describe("Experimental features (structure TBD)."),tools:J.object({listChanged:J.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:J.array(j).optional().describe("Display modes the app supports.")}),zJ=J.object({method:J.literal("ui/notifications/initialized"),params:J.object({}).optional()}),UJ=J.object({csp:V.optional().describe("Content Security Policy configuration for UI resources."),permissions:P.optional().describe("Sandbox permissions requested by the UI resource."),domain:J.string().optional().describe(`Dedicated origin for view sandbox.

		@@ -37,5 +37,5 @@ Useful when views need stable, dedicated origins for OAuth callbacks, CORS policies, or API key allowlists.
		- \`false\`: request no visible border + background
		- omitted: host decides border`)}),wJ=J.object({method:J.literal("ui/request-display-mode"),params:J.object({mode:W.describe("The display mode being requested.")})}),S=J.object({mode:W.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),p=J.union([J.literal("model"),J.literal("app")]).describe("Tool visibility scope - who can access the tool."),MJ=J.object({resourceUri:J.string().optional(),visibility:J.array(p).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- omitted: host decides border`)}),wJ=J.object({method:J.literal("ui/request-display-mode"),params:J.object({mode:j.describe("The display mode being requested.")})}),b=J.object({mode:j.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),i=J.union([J.literal("model"),J.literal("app")]).describe("Tool visibility scope - who can access the tool."),MJ=J.object({resourceUri:J.string().optional(),visibility:J.array(i).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- "model": Tool visible to and callable by the agent
		- "app": Tool callable by the app from this server only`)}),JK=J.object({mimeTypes:J.array(J.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),TJ=J.object({method:J.literal("ui/download-file"),params:J.object({contents:J.array(J.union([BJ,PJ])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),HJ=J.object({method:J.literal("ui/message"),params:J.object({role:J.literal("user").describe('Message role, currently only "user" is supported.'),content:J.array(u).describe("Message content blocks (text, image, etc.).")})}),vJ=J.object({method:J.literal("ui/notifications/sandbox-resource-ready"),params:J.object({html:J.string().describe("HTML content to load into the inner iframe."),sandbox:J.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:P.optional().describe("CSP configuration from resource metadata."),permissions:_.optional().describe("Sandbox permissions from resource metadata.")})}),C=J.object({method:J.literal("ui/notifications/tool-result"),params:NJ.describe("Standard MCP tool execution result.")}),g=J.object({toolInfo:J.object({id:VJ.optional().describe("JSON-RPC id of the tools/call request."),tool:_J.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:m.optional().describe("Current color theme preference."),styles:r.optional().describe("Style configuration for theming the app."),displayMode:W.optional().describe("How the UI is currently displayed."),availableDisplayModes:J.array(W).optional().describe("Display modes the host supports."),containerDimensions:J.union([J.object({height:J.number().describe("Fixed container height in pixels.")}),J.object({maxHeight:J.union([J.number(),J.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(J.union([J.object({width:J.number().describe("Fixed container width in pixels.")}),J.object({maxWidth:J.union([J.number(),J.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:J.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:J.string().optional().describe("User's timezone in IANA format."),userAgent:J.string().optional().describe("Host application identifier."),platform:J.union([J.literal("web"),J.literal("desktop"),J.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:J.object({touch:J.boolean().optional().describe("Whether the device supports touch input."),hover:J.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:J.object({top:J.number().describe("Top safe area inset in pixels."),right:J.number().describe("Right safe area inset in pixels."),bottom:J.number().describe("Bottom safe area inset in pixels."),left:J.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),x=J.object({method:J.literal("ui/notifications/host-context-changed"),params:g.describe("Partial context update containing only changed fields.")}),AJ=J.object({method:J.literal("ui/update-model-context"),params:J.object({content:J.array(u).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:J.record(J.string(),J.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),kJ=J.object({method:J.literal("ui/initialize"),params:J.object({appInfo:h.describe("App identification (name and version)."),appCapabilities:i.describe("Features and capabilities this app provides."),protocolVersion:J.string().describe("Protocol version this app supports.")})}),y=J.object({protocolVersion:J.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:h.describe("Host application identification and version."),hostCapabilities:l.describe("Features and capabilities provided by the host."),hostContext:g.describe("Rich context about the host environment.")}).passthrough();function O(){let K=document.documentElement.getAttribute("data-theme");if(K==="dark"\|\|K==="light")return K;return document.documentElement.classList.contains("dark")?"dark":"light"}function q(K){let Q=document.documentElement;Q.setAttribute("data-theme",K),Q.style.colorScheme=K}function D(K,Q=document.documentElement){for(let[X,Y]of Object.entries(K))if(Y!==void 0)Q.style.setProperty(X,Y)}function I(K){if(document.getElementById("__mcp-host-fonts"))return;let X=document.createElement("style");X.id="__mcp-host-fonts",X.textContent=K,document.head.appendChild(X)}var dK="ui/resourceUri",uK="text/html;profile=mcp-app";class f extends bJ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(K,Q={},X={autoResize:!0}){super(X);this._appInfo=K;this._capabilities=Q;this.options=X;this.setRequestHandler(fJ,(Y)=>{return console.log("Received ping:",Y.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(K){this.setNotificationHandler(v,(Q)=>K(Q.params))}set ontoolinputpartial(K){this.setNotificationHandler(A,(Q)=>K(Q.params))}set ontoolresult(K){this.setNotificationHandler(C,(Q)=>K(Q.params))}set ontoolcancelled(K){this.setNotificationHandler(k,(Q)=>K(Q.params))}set onhostcontextchanged(K){this.setNotificationHandler(x,(Q)=>{this._hostContext={...this._hostContext,...Q.params},K(Q.params)})}set onteardown(K){this.setRequestHandler(b,(Q,X)=>K(Q.params,X))}set oncalltool(K){this.setRequestHandler(SJ,(Q,X)=>K(Q.params,X))}set onlisttools(K){this.setRequestHandler(yJ,(Q,X)=>K(Q.params,X))}assertCapabilityForMethod(K){}assertRequestHandlerCapability(K){switch(K){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${K})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${K} registered`)}}assertNotificationCapability(K){}assertTaskCapability(K){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(K){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(K,Q){if(typeof K==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${K}"). Did you mean: callServerTool({ name: "${K}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:K},CJ,Q)}async readServerResource(K,Q){return await this.request({method:"resources/read",params:K},dJ,Q)}async listServerResources(K,Q){return await this.request({method:"resources/list",params:K},xJ,Q)}sendMessage(K,Q){return this.request({method:"ui/message",params:K},H,Q)}sendLog(K){return this.notification({method:"notifications/message",params:K})}updateModelContext(K,Q){return this.request({method:"ui/update-model-context",params:K},gJ,Q)}openLink(K,Q){return this.request({method:"ui/open-link",params:K},M,Q)}sendOpenLink=this.openLink;downloadFile(K,Q){return this.request({method:"ui/download-file",params:K},T,Q)}requestTeardown(K={}){return this.notification({method:"ui/notifications/request-teardown",params:K})}requestDisplayMode(K,Q){return this.request({method:"ui/request-display-mode",params:K},S,Q)}sendSizeChanged(K){return this.notification({method:"ui/notifications/size-changed",params:K})}setupSizeChangedNotifications(){let K=!1,Q=0,X=0,Y=()=>{if(K)return;K=!0,requestAnimationFrame(()=>{K=!1;let Z=document.documentElement,V=Z.style.width,E=Z.style.height;Z.style.width="fit-content",Z.style.height="max-content";let L=Z.getBoundingClientRect();Z.style.width=V,Z.style.height=E;let N=window.innerWidth-Z.clientWidth,B=Math.ceil(L.width+N),$=Math.ceil(L.height);if(B!==Q\|\|$!==X)Q=B,X=$,this.sendSizeChanged({width:B,height:$})})};Y();let G=new ResizeObserver(Y);return G.observe(document.documentElement),G.observe(document.body),()=>G.disconnect()}async connect(K=new j(window.parent,window.parent),Q){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(K);try{let X=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:z}},y,Q);if(X===void 0)throw Error(`Server sent invalid initialize result: ${X}`);if(this._hostCapabilities=X.hostCapabilities,this._hostInfo=X.hostInfo,this._hostContext=X.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(X){throw this.close(),X}}}function nK({appInfo:K,capabilities:Q,onAppCreated:X}){let[Y,G]=d(null),[Z,V]=d(!1),[E,L]=d(null);return uJ(()=>{let N=!0;async function B(){try{let $=new j(window.parent,window.parent),R=new f(K,Q);if(X?.(R),await R.connect($),N)G(R),V(!0),L(null)}catch($){if(N)G(null),V(!1),L($ instanceof Error?$:Error("Failed to connect"))}}return B(),()=>{N=!1}},[]),{app:Y,isConnected:Z,error:E}}import{useEffect as hJ}from"react";function eK(K,Q){hJ(()=>{if(!K)return;return K.setupSizeChangedNotifications()},[K,Q])}import{useEffect as mJ,useState as cJ}from"react";function XQ(){let[K,Q]=cJ(O);return mJ(()=>{let X=new MutationObserver(()=>{Q(O())});return X.observe(document.documentElement,{attributes:!0,attributeFilter:["data-theme","class"],characterData:!1,childList:!1,subtree:!1}),()=>X.disconnect()},[]),K}import{useEffect as F,useRef as n}from"react";function rJ(K,Q){let X=n(!1);F(()=>{if(X.current)return;if(Q?.theme)q(Q.theme);if(Q?.styles?.variables)D(Q.styles.variables);if(Q?.theme\|\|Q?.styles?.variables)X.current=!0},[Q]),F(()=>{if(!K)return;K.onhostcontextchanged=(Y)=>{if(Y.theme)q(Y.theme);if(Y.styles?.variables)D(Y.styles.variables)}},[K])}function lJ(K,Q){let X=n(!1);F(()=>{if(X.current)return;if(Q?.styles?.css?.fonts)I(Q.styles.css.fonts),X.current=!0},[Q]),F(()=>{if(!K)return;K.onhostcontextchanged=(Y)=>{if(Y.styles?.css?.fonts)I(Y.styles.css.fonts)}},[K])}function GQ(K,Q){rJ(K,Q),lJ(K,Q)}export{GQ as useHostStyles,rJ as useHostStyleVariables,lJ as useHostFonts,XQ as useDocumentTheme,eK as useAutoResize,nK as useApp,O as getDocumentTheme,D as applyHostStyleVariables,I as applyHostFonts,q as applyDocumentTheme,QJ as TOOL_RESULT_METHOD,U as TOOL_INPUT_PARTIAL_METHOD,KJ as TOOL_INPUT_METHOD,XJ as TOOL_CANCELLED_METHOD,JJ as SIZE_CHANGED_METHOD,e as SANDBOX_RESOURCE_READY_METHOD,t as SANDBOX_PROXY_READY_METHOD,dK as RESOURCE_URI_META_KEY,$J as RESOURCE_TEARDOWN_METHOD,uK as RESOURCE_MIME_TYPE,ZJ as REQUEST_TEARDOWN_METHOD,WJ as REQUEST_DISPLAY_MODE_METHOD,j as PostMessageTransport,o as OPEN_LINK_METHOD,AJ as McpUiUpdateModelContextRequestSchema,p as McpUiToolVisibilitySchema,C as McpUiToolResultNotificationSchema,MJ as McpUiToolMetaSchema,A as McpUiToolInputPartialNotificationSchema,v as McpUiToolInputNotificationSchema,k as McpUiToolCancelledNotificationSchema,m as McpUiThemeSchema,w as McpUiSupportedContentBlockModalitiesSchema,FJ as McpUiSizeChangedNotificationSchema,vJ as McpUiSandboxResourceReadyNotificationSchema,IJ as McpUiSandboxProxyReadyNotificationSchema,EJ as McpUiResourceTeardownResultSchema,b as McpUiResourceTeardownRequestSchema,_ as McpUiResourcePermissionsSchema,UJ as McpUiResourceMetaSchema,P as McpUiResourceCspSchema,RJ as McpUiRequestTeardownNotificationSchema,S as McpUiRequestDisplayModeResultSchema,wJ as McpUiRequestDisplayModeRequestSchema,M as McpUiOpenLinkResultSchema,DJ as McpUiOpenLinkRequestSchema,H as McpUiMessageResultSchema,HJ as McpUiMessageRequestSchema,zJ as McpUiInitializedNotificationSchema,y as McpUiInitializeResultSchema,kJ as McpUiInitializeRequestSchema,r as McpUiHostStylesSchema,c as McpUiHostCssSchema,g as McpUiHostContextSchema,x as McpUiHostContextChangedNotificationSchema,l as McpUiHostCapabilitiesSchema,T as McpUiDownloadFileResultSchema,TJ as McpUiDownloadFileRequestSchema,W as McpUiDisplayModeSchema,i as McpUiAppCapabilitiesSchema,s as MESSAGE_METHOD,z as LATEST_PROTOCOL_VERSION,GJ as INITIALIZE_METHOD,jJ as INITIALIZED_METHOD,YJ as HOST_CONTEXT_CHANGED_METHOD,a as DOWNLOAD_FILE_METHOD,f as App};
		- "app": Tool callable by the app from this server only`)}),JK=J.object({mimeTypes:J.array(J.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),TJ=J.object({method:J.literal("ui/download-file"),params:J.object({contents:J.array(J.union([BJ,PJ])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),HJ=J.object({method:J.literal("ui/message"),params:J.object({role:J.literal("user").describe('Message role, currently only "user" is supported.'),content:J.array(d).describe("Message content blocks (text, image, etc.).")})}),vJ=J.object({method:J.literal("ui/notifications/sandbox-resource-ready"),params:J.object({html:J.string().describe("HTML content to load into the inner iframe."),sandbox:J.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:V.optional().describe("CSP configuration from resource metadata."),permissions:P.optional().describe("Sandbox permissions from resource metadata.")})}),S=J.object({method:J.literal("ui/notifications/tool-result"),params:NJ.describe("Standard MCP tool execution result.")}),C=J.object({toolInfo:J.object({id:VJ.optional().describe("JSON-RPC id of the tools/call request."),tool:_J.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:h.optional().describe("Current color theme preference."),styles:c.optional().describe("Style configuration for theming the app."),displayMode:j.optional().describe("How the UI is currently displayed."),availableDisplayModes:J.array(j).optional().describe("Display modes the host supports."),containerDimensions:J.union([J.object({height:J.number().describe("Fixed container height in pixels.")}),J.object({maxHeight:J.union([J.number(),J.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(J.union([J.object({width:J.number().describe("Fixed container width in pixels.")}),J.object({maxWidth:J.union([J.number(),J.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:J.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:J.string().optional().describe("User's timezone in IANA format."),userAgent:J.string().optional().describe("Host application identifier."),platform:J.union([J.literal("web"),J.literal("desktop"),J.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:J.object({touch:J.boolean().optional().describe("Whether the device supports touch input."),hover:J.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:J.object({top:J.number().describe("Top safe area inset in pixels."),right:J.number().describe("Right safe area inset in pixels."),bottom:J.number().describe("Bottom safe area inset in pixels."),left:J.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),g=J.object({method:J.literal("ui/notifications/host-context-changed"),params:C.describe("Partial context update containing only changed fields.")}),AJ=J.object({method:J.literal("ui/update-model-context"),params:J.object({content:J.array(d).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:J.record(J.string(),J.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),kJ=J.object({method:J.literal("ui/initialize"),params:J.object({appInfo:u.describe("App identification (name and version)."),appCapabilities:l.describe("Features and capabilities this app provides."),protocolVersion:J.string().describe("Protocol version this app supports.")})}),x=J.object({protocolVersion:J.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:u.describe("Host application identification and version."),hostCapabilities:r.describe("Features and capabilities provided by the host."),hostContext:C.describe("Rich context about the host environment.")}).passthrough();function _(){let K=document.documentElement.getAttribute("data-theme");if(K==="dark"\|\|K==="light")return K;return document.documentElement.classList.contains("dark")?"dark":"light"}function O(K){let Q=document.documentElement;Q.setAttribute("data-theme",K),Q.style.colorScheme=K}function q(K,Q=document.documentElement){for(let[X,Y]of Object.entries(K))if(Y!==void 0)Q.style.setProperty(X,Y)}function D(K){if(document.getElementById("__mcp-host-fonts"))return;let X=document.createElement("style");X.id="__mcp-host-fonts",X.textContent=K,document.head.appendChild(X)}var dK="ui/resourceUri",uK="text/html;profile=mcp-app";class y extends bJ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(K,Q={},X={autoResize:!0}){super(X);this._appInfo=K;this._capabilities=Q;this.options=X;this.setRequestHandler(fJ,(Y)=>{return console.log("Received ping:",Y.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(K){this.setNotificationHandler(H,(Q)=>K(Q.params))}set ontoolinputpartial(K){this.setNotificationHandler(v,(Q)=>K(Q.params))}set ontoolresult(K){this.setNotificationHandler(S,(Q)=>K(Q.params))}set ontoolcancelled(K){this.setNotificationHandler(A,(Q)=>K(Q.params))}set onhostcontextchanged(K){this.setNotificationHandler(g,(Q)=>{this._hostContext={...this._hostContext,...Q.params},K(Q.params)})}set onteardown(K){this.setRequestHandler(k,(Q,X)=>K(Q.params,X))}set oncalltool(K){this.setRequestHandler(SJ,(Q,X)=>K(Q.params,X))}set onlisttools(K){this.setRequestHandler(yJ,(Q,X)=>K(Q.params,X))}assertCapabilityForMethod(K){}assertRequestHandlerCapability(K){switch(K){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${K})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${K} registered`)}}assertNotificationCapability(K){}assertTaskCapability(K){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(K){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(K,Q){if(typeof K==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${K}"). Did you mean: callServerTool({ name: "${K}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:K},CJ,Q)}async readServerResource(K,Q){return await this.request({method:"resources/read",params:K},dJ,Q)}async listServerResources(K,Q){return await this.request({method:"resources/list",params:K},xJ,Q)}sendMessage(K,Q){return this.request({method:"ui/message",params:K},T,Q)}sendLog(K){return this.notification({method:"notifications/message",params:K})}updateModelContext(K,Q){return this.request({method:"ui/update-model-context",params:K},gJ,Q)}openLink(K,Q){return this.request({method:"ui/open-link",params:K},w,Q)}sendOpenLink=this.openLink;downloadFile(K,Q){return this.request({method:"ui/download-file",params:K},M,Q)}requestTeardown(K={}){return this.notification({method:"ui/notifications/request-teardown",params:K})}requestDisplayMode(K,Q){return this.request({method:"ui/request-display-mode",params:K},b,Q)}sendSizeChanged(K){return this.notification({method:"ui/notifications/size-changed",params:K})}setupSizeChangedNotifications(){let K=!1,Q=0,X=0,Y=()=>{if(K)return;K=!0,requestAnimationFrame(()=>{K=!1;let $=document.documentElement,N=$.style.height;$.style.height="max-content";let L=Math.ceil($.getBoundingClientRect().height);$.style.height=N;let G=Math.ceil(window.innerWidth);if(G!==Q\|\|L!==X)Q=G,X=L,this.sendSizeChanged({width:G,height:L})})};Y();let Z=new ResizeObserver(Y);return Z.observe(document.documentElement),Z.observe(document.body),()=>Z.disconnect()}async connect(K=new W(window.parent,window.parent),Q){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(K);try{let X=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:R}},x,Q);if(X===void 0)throw Error(`Server sent invalid initialize result: ${X}`);if(this._hostCapabilities=X.hostCapabilities,this._hostInfo=X.hostInfo,this._hostContext=X.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(X){throw this.close(),X}}}function nK({appInfo:K,capabilities:Q,onAppCreated:X}){let[Y,Z]=f(null),[$,N]=f(!1),[L,G]=f(null);return uJ(()=>{let F=!0;async function n(){try{let B=new W(window.parent,window.parent),E=new y(K,Q);if(X?.(E),await E.connect(B),F)Z(E),N(!0),G(null)}catch(B){if(F)Z(null),N(!1),G(B instanceof Error?B:Error("Failed to connect"))}}return n(),()=>{F=!1}},[]),{app:Y,isConnected:$,error:L}}import{useEffect as hJ}from"react";function eK(K,Q){hJ(()=>{if(!K)return;return K.setupSizeChangedNotifications()},[K,Q])}import{useEffect as mJ,useState as cJ}from"react";function XQ(){let[K,Q]=cJ(_);return mJ(()=>{let X=new MutationObserver(()=>{Q(_())});return X.observe(document.documentElement,{attributes:!0,attributeFilter:["data-theme","class"],characterData:!1,childList:!1,subtree:!1}),()=>X.disconnect()},[]),K}import{useEffect as I,useRef as p}from"react";function rJ(K,Q){let X=p(!1);I(()=>{if(X.current)return;if(Q?.theme)O(Q.theme);if(Q?.styles?.variables)q(Q.styles.variables);if(Q?.theme\|\|Q?.styles?.variables)X.current=!0},[Q]),I(()=>{if(!K)return;K.onhostcontextchanged=(Y)=>{if(Y.theme)O(Y.theme);if(Y.styles?.variables)q(Y.styles.variables)}},[K])}function lJ(K,Q){let X=p(!1);I(()=>{if(X.current)return;if(Q?.styles?.css?.fonts)D(Q.styles.css.fonts),X.current=!0},[Q]),I(()=>{if(!K)return;K.onhostcontextchanged=(Y)=>{if(Y.styles?.css?.fonts)D(Y.styles.css.fonts)}},[K])}function GQ(K,Q){rJ(K,Q),lJ(K,Q)}export{GQ as useHostStyles,rJ as useHostStyleVariables,lJ as useHostFonts,XQ as useDocumentTheme,eK as useAutoResize,nK as useApp,_ as getDocumentTheme,q as applyHostStyleVariables,D as applyHostFonts,O as applyDocumentTheme,QJ as TOOL_RESULT_METHOD,z as TOOL_INPUT_PARTIAL_METHOD,KJ as TOOL_INPUT_METHOD,XJ as TOOL_CANCELLED_METHOD,JJ as SIZE_CHANGED_METHOD,e as SANDBOX_RESOURCE_READY_METHOD,t as SANDBOX_PROXY_READY_METHOD,dK as RESOURCE_URI_META_KEY,$J as RESOURCE_TEARDOWN_METHOD,uK as RESOURCE_MIME_TYPE,ZJ as REQUEST_TEARDOWN_METHOD,jJ as REQUEST_DISPLAY_MODE_METHOD,W as PostMessageTransport,o as OPEN_LINK_METHOD,AJ as McpUiUpdateModelContextRequestSchema,i as McpUiToolVisibilitySchema,S as McpUiToolResultNotificationSchema,MJ as McpUiToolMetaSchema,v as McpUiToolInputPartialNotificationSchema,H as McpUiToolInputNotificationSchema,A as McpUiToolCancelledNotificationSchema,h as McpUiThemeSchema,U as McpUiSupportedContentBlockModalitiesSchema,FJ as McpUiSizeChangedNotificationSchema,vJ as McpUiSandboxResourceReadyNotificationSchema,IJ as McpUiSandboxProxyReadyNotificationSchema,EJ as McpUiResourceTeardownResultSchema,k as McpUiResourceTeardownRequestSchema,P as McpUiResourcePermissionsSchema,UJ as McpUiResourceMetaSchema,V as McpUiResourceCspSchema,RJ as McpUiRequestTeardownNotificationSchema,b as McpUiRequestDisplayModeResultSchema,wJ as McpUiRequestDisplayModeRequestSchema,w as McpUiOpenLinkResultSchema,DJ as McpUiOpenLinkRequestSchema,T as McpUiMessageResultSchema,HJ as McpUiMessageRequestSchema,zJ as McpUiInitializedNotificationSchema,x as McpUiInitializeResultSchema,kJ as McpUiInitializeRequestSchema,c as McpUiHostStylesSchema,m as McpUiHostCssSchema,C as McpUiHostContextSchema,g as McpUiHostContextChangedNotificationSchema,r as McpUiHostCapabilitiesSchema,M as McpUiDownloadFileResultSchema,TJ as McpUiDownloadFileRequestSchema,j as McpUiDisplayModeSchema,l as McpUiAppCapabilitiesSchema,s as MESSAGE_METHOD,R as LATEST_PROTOCOL_VERSION,GJ as INITIALIZE_METHOD,WJ as INITIALIZED_METHOD,YJ as HOST_CONTEXT_CHANGED_METHOD,a as DOWNLOAD_FILE_METHOD,y as App};

+6

-6

dist/src/server/index.js

		@@ -1,2 +0,2 @@
		import{Protocol as jQ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as BQ,CallToolResultSchema as KQ,EmptyResultSchema as NQ,ListResourcesResultSchema as YQ,ListToolsRequestSchema as FQ,PingRequestSchema as zQ,ReadResourceResultSchema as qQ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as m}from"@modelcontextprotocol/sdk/types.js";var F="2026-01-26";var z="ui/notifications/tool-input-partial";class j{eventTarget;eventSource;messageListener;constructor(Z=window.parent,$){this.eventTarget=Z;this.eventSource=$;this.messageListener=(J)=>{if($&&J.source!==this.eventSource){console.debug("Ignoring message from unknown source",J);return}let X=m.safeParse(J.data);if(X.success)console.debug("Parsed message",X.data),this.onmessage?.(X.data);else if(J.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",X.error.message,J);else console.error("Failed to parse message",X.error.message,J),this.onerror?.(Error("Invalid JSON-RPC message received: "+X.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(Z,$){if(Z.method!==z)console.debug("Sending message",Z);this.eventTarget.postMessage(Z,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}import{z as Q}from"zod/v4";import{ContentBlockSchema as M,CallToolResultSchema as c,EmbeddedResourceSchema as p,ImplementationSchema as b,RequestIdSchema as l,ResourceLinkSchema as r,ToolSchema as n}from"@modelcontextprotocol/sdk/types.js";var g=Q.union([Q.literal("light"),Q.literal("dark")]).describe("Color theme preference for the host environment."),G=Q.union([Q.literal("inline"),Q.literal("fullscreen"),Q.literal("pip")]).describe("Display mode for UI presentation."),i=Q.union([Q.literal("--color-background-primary"),Q.literal("--color-background-secondary"),Q.literal("--color-background-tertiary"),Q.literal("--color-background-inverse"),Q.literal("--color-background-ghost"),Q.literal("--color-background-info"),Q.literal("--color-background-danger"),Q.literal("--color-background-success"),Q.literal("--color-background-warning"),Q.literal("--color-background-disabled"),Q.literal("--color-text-primary"),Q.literal("--color-text-secondary"),Q.literal("--color-text-tertiary"),Q.literal("--color-text-inverse"),Q.literal("--color-text-ghost"),Q.literal("--color-text-info"),Q.literal("--color-text-danger"),Q.literal("--color-text-success"),Q.literal("--color-text-warning"),Q.literal("--color-text-disabled"),Q.literal("--color-border-primary"),Q.literal("--color-border-secondary"),Q.literal("--color-border-tertiary"),Q.literal("--color-border-inverse"),Q.literal("--color-border-ghost"),Q.literal("--color-border-info"),Q.literal("--color-border-danger"),Q.literal("--color-border-success"),Q.literal("--color-border-warning"),Q.literal("--color-border-disabled"),Q.literal("--color-ring-primary"),Q.literal("--color-ring-secondary"),Q.literal("--color-ring-inverse"),Q.literal("--color-ring-info"),Q.literal("--color-ring-danger"),Q.literal("--color-ring-success"),Q.literal("--color-ring-warning"),Q.literal("--font-sans"),Q.literal("--font-mono"),Q.literal("--font-weight-normal"),Q.literal("--font-weight-medium"),Q.literal("--font-weight-semibold"),Q.literal("--font-weight-bold"),Q.literal("--font-text-xs-size"),Q.literal("--font-text-sm-size"),Q.literal("--font-text-md-size"),Q.literal("--font-text-lg-size"),Q.literal("--font-heading-xs-size"),Q.literal("--font-heading-sm-size"),Q.literal("--font-heading-md-size"),Q.literal("--font-heading-lg-size"),Q.literal("--font-heading-xl-size"),Q.literal("--font-heading-2xl-size"),Q.literal("--font-heading-3xl-size"),Q.literal("--font-text-xs-line-height"),Q.literal("--font-text-sm-line-height"),Q.literal("--font-text-md-line-height"),Q.literal("--font-text-lg-line-height"),Q.literal("--font-heading-xs-line-height"),Q.literal("--font-heading-sm-line-height"),Q.literal("--font-heading-md-line-height"),Q.literal("--font-heading-lg-line-height"),Q.literal("--font-heading-xl-line-height"),Q.literal("--font-heading-2xl-line-height"),Q.literal("--font-heading-3xl-line-height"),Q.literal("--border-radius-xs"),Q.literal("--border-radius-sm"),Q.literal("--border-radius-md"),Q.literal("--border-radius-lg"),Q.literal("--border-radius-xl"),Q.literal("--border-radius-full"),Q.literal("--border-width-regular"),Q.literal("--shadow-hairline"),Q.literal("--shadow-sm"),Q.literal("--shadow-md"),Q.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),o=Q.record(i.describe(`Style variables for theming MCP apps.
		import{Protocol as DQ}from"@modelcontextprotocol/sdk/shared/protocol.js";import{CallToolRequestSchema as GQ,CallToolResultSchema as LQ,EmptyResultSchema as jQ,ListResourcesResultSchema as BQ,ListToolsRequestSchema as KQ,PingRequestSchema as NQ,ReadResourceResultSchema as YQ}from"@modelcontextprotocol/sdk/types.js";import{JSONRPCMessageSchema as u}from"@modelcontextprotocol/sdk/types.js";var Y="2026-01-26";var F="ui/notifications/tool-input-partial";class j{eventTarget;eventSource;messageListener;constructor(Z=window.parent,$){this.eventTarget=Z;this.eventSource=$;this.messageListener=(J)=>{if($&&J.source!==this.eventSource){console.debug("Ignoring message from unknown source",J);return}let X=u.safeParse(J.data);if(X.success)console.debug("Parsed message",X.data),this.onmessage?.(X.data);else if(J.data?.jsonrpc!=="2.0")console.debug("Ignoring non-JSON-RPC message",X.error.message,J);else console.error("Failed to parse message",X.error.message,J),this.onerror?.(Error("Invalid JSON-RPC message received: "+X.error.message))}}async start(){window.addEventListener("message",this.messageListener)}async send(Z,$){if(Z.method!==F)console.debug("Sending message",Z);this.eventTarget.postMessage(Z,"*")}async close(){window.removeEventListener("message",this.messageListener),this.onclose?.()}onclose;onerror;onmessage;sessionId;setProtocolVersion}import{z as Q}from"zod/v4";import{ContentBlockSchema as v,CallToolResultSchema as d,EmbeddedResourceSchema as h,ImplementationSchema as x,RequestIdSchema as m,ResourceLinkSchema as c,ToolSchema as l}from"@modelcontextprotocol/sdk/types.js";var M=Q.union([Q.literal("light"),Q.literal("dark")]).describe("Color theme preference for the host environment."),G=Q.union([Q.literal("inline"),Q.literal("fullscreen"),Q.literal("pip")]).describe("Display mode for UI presentation."),p=Q.union([Q.literal("--color-background-primary"),Q.literal("--color-background-secondary"),Q.literal("--color-background-tertiary"),Q.literal("--color-background-inverse"),Q.literal("--color-background-ghost"),Q.literal("--color-background-info"),Q.literal("--color-background-danger"),Q.literal("--color-background-success"),Q.literal("--color-background-warning"),Q.literal("--color-background-disabled"),Q.literal("--color-text-primary"),Q.literal("--color-text-secondary"),Q.literal("--color-text-tertiary"),Q.literal("--color-text-inverse"),Q.literal("--color-text-ghost"),Q.literal("--color-text-info"),Q.literal("--color-text-danger"),Q.literal("--color-text-success"),Q.literal("--color-text-warning"),Q.literal("--color-text-disabled"),Q.literal("--color-border-primary"),Q.literal("--color-border-secondary"),Q.literal("--color-border-tertiary"),Q.literal("--color-border-inverse"),Q.literal("--color-border-ghost"),Q.literal("--color-border-info"),Q.literal("--color-border-danger"),Q.literal("--color-border-success"),Q.literal("--color-border-warning"),Q.literal("--color-border-disabled"),Q.literal("--color-ring-primary"),Q.literal("--color-ring-secondary"),Q.literal("--color-ring-inverse"),Q.literal("--color-ring-info"),Q.literal("--color-ring-danger"),Q.literal("--color-ring-success"),Q.literal("--color-ring-warning"),Q.literal("--font-sans"),Q.literal("--font-mono"),Q.literal("--font-weight-normal"),Q.literal("--font-weight-medium"),Q.literal("--font-weight-semibold"),Q.literal("--font-weight-bold"),Q.literal("--font-text-xs-size"),Q.literal("--font-text-sm-size"),Q.literal("--font-text-md-size"),Q.literal("--font-text-lg-size"),Q.literal("--font-heading-xs-size"),Q.literal("--font-heading-sm-size"),Q.literal("--font-heading-md-size"),Q.literal("--font-heading-lg-size"),Q.literal("--font-heading-xl-size"),Q.literal("--font-heading-2xl-size"),Q.literal("--font-heading-3xl-size"),Q.literal("--font-text-xs-line-height"),Q.literal("--font-text-sm-line-height"),Q.literal("--font-text-md-line-height"),Q.literal("--font-text-lg-line-height"),Q.literal("--font-heading-xs-line-height"),Q.literal("--font-heading-sm-line-height"),Q.literal("--font-heading-md-line-height"),Q.literal("--font-heading-lg-line-height"),Q.literal("--font-heading-xl-line-height"),Q.literal("--font-heading-2xl-line-height"),Q.literal("--font-heading-3xl-line-height"),Q.literal("--border-radius-xs"),Q.literal("--border-radius-sm"),Q.literal("--border-radius-md"),Q.literal("--border-radius-lg"),Q.literal("--border-radius-xl"),Q.literal("--border-radius-full"),Q.literal("--border-width-regular"),Q.literal("--shadow-hairline"),Q.literal("--shadow-sm"),Q.literal("--shadow-md"),Q.literal("--shadow-lg")]).describe("CSS variable keys available to MCP apps for theming."),r=Q.record(p.describe(`Style variables for theming MCP apps.

		@@ -19,6 +19,6 @@ Individual style keys are optional - hosts may provide any subset of these values.
		Note: This type uses \`Record<K, string \| undefined>\` rather than \`Partial<Record<K, string>>\`
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),a=Q.object({method:Q.literal("ui/open-link"),params:Q.object({url:Q.string().describe("URL to open in the host's browser")})}),O=Q.object({isError:Q.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),I=Q.object({isError:Q.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),w=Q.object({isError:Q.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),s=Q.object({method:Q.literal("ui/notifications/sandbox-proxy-ready"),params:Q.object({})}),B=Q.object({connectDomains:Q.array(Q.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).
		for compatibility with Zod schema generation. Both are functionally equivalent for validation.`),n=Q.object({method:Q.literal("ui/open-link"),params:Q.object({url:Q.string().describe("URL to open in the host's browser")})}),q=Q.object({isError:Q.boolean().optional().describe("True if the host failed to open the URL (e.g., due to security policy).")}).passthrough(),O=Q.object({isError:Q.boolean().optional().describe("True if the download failed (e.g., user cancelled or host denied).")}).passthrough(),I=Q.object({isError:Q.boolean().optional().describe("True if the host rejected or failed to deliver the message.")}).passthrough(),i=Q.object({method:Q.literal("ui/notifications/sandbox-proxy-ready"),params:Q.object({})}),B=Q.object({connectDomains:Q.array(Q.string()).optional().describe(`Origins for network requests (fetch/XHR/WebSocket).

		- Maps to CSP \`connect-src\` directive
		- Empty or omitted → no network connections (secure default)`),resourceDomains:Q.array(Q.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:Q.array(Q.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:Q.array(Q.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),K=Q.object({camera:Q.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:Q.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:Q.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:Q.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),t=Q.object({method:Q.literal("ui/notifications/size-changed"),params:Q.object({width:Q.number().optional().describe("New width in pixels."),height:Q.number().optional().describe("New height in pixels.")})}),A=Q.object({method:Q.literal("ui/notifications/tool-input"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),P=Q.object({method:Q.literal("ui/notifications/tool-input-partial"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),H=Q.object({method:Q.literal("ui/notifications/tool-cancelled"),params:Q.object({reason:Q.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),S=Q.object({fonts:Q.string().optional()}),y=Q.object({variables:o.optional().describe("CSS variables for theming the app."),css:S.optional().describe("CSS blocks that apps can inject.")}),_=Q.object({method:Q.literal("ui/resource-teardown"),params:Q.object({})}),e=Q.record(Q.string(),Q.unknown()),q=Q.object({text:Q.object({}).optional().describe("Host supports text content blocks."),image:Q.object({}).optional().describe("Host supports image content blocks."),audio:Q.object({}).optional().describe("Host supports audio content blocks."),resource:Q.object({}).optional().describe("Host supports resource content blocks."),resourceLink:Q.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:Q.object({}).optional().describe("Host supports structured content.")}),QQ=Q.object({method:Q.literal("ui/notifications/request-teardown"),params:Q.object({}).optional()}),C=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:Q.object({}).optional().describe("Host supports opening external URLs."),downloadFile:Q.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:Q.object({listChanged:Q.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:Q.object({listChanged:Q.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:Q.object({}).optional().describe("Host accepts log messages."),sandbox:Q.object({permissions:K.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:B.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:q.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:q.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),f=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),tools:Q.object({listChanged:Q.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:Q.array(G).optional().describe("Display modes the app supports.")}),ZQ=Q.object({method:Q.literal("ui/notifications/initialized"),params:Q.object({}).optional()}),$Q=Q.object({csp:B.optional().describe("Content Security Policy configuration for UI resources."),permissions:K.optional().describe("Sandbox permissions requested by the UI resource."),domain:Q.string().optional().describe(`Dedicated origin for view sandbox.
		- Empty or omitted → no network connections (secure default)`),resourceDomains:Q.array(Q.string()).optional().describe("Origins for static resources (images, scripts, stylesheets, fonts, media).\n\n- Maps to CSP `img-src`, `script-src`, `style-src`, `font-src`, `media-src` directives\n- Wildcard subdomains supported: `https://*.example.com`\n- Empty or omitted → no network resources (secure default)"),frameDomains:Q.array(Q.string()).optional().describe("Origins for nested iframes.\n\n- Maps to CSP `frame-src` directive\n- Empty or omitted → no nested iframes allowed (`frame-src 'none'`)"),baseUriDomains:Q.array(Q.string()).optional().describe("Allowed base URIs for the document.\n\n- Maps to CSP `base-uri` directive\n- Empty or omitted → only same origin allowed (`base-uri 'self'`)")}),K=Q.object({camera:Q.object({}).optional().describe("Request camera access.\n\nMaps to Permission Policy `camera` feature."),microphone:Q.object({}).optional().describe("Request microphone access.\n\nMaps to Permission Policy `microphone` feature."),geolocation:Q.object({}).optional().describe("Request geolocation access.\n\nMaps to Permission Policy `geolocation` feature."),clipboardWrite:Q.object({}).optional().describe("Request clipboard write access.\n\nMaps to Permission Policy `clipboard-write` feature.")}),o=Q.object({method:Q.literal("ui/notifications/size-changed"),params:Q.object({width:Q.number().optional().describe("New width in pixels."),height:Q.number().optional().describe("New height in pixels.")})}),w=Q.object({method:Q.literal("ui/notifications/tool-input"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Complete tool call arguments as key-value pairs.")).optional().describe("Complete tool call arguments as key-value pairs.")})}),A=Q.object({method:Q.literal("ui/notifications/tool-input-partial"),params:Q.object({arguments:Q.record(Q.string(),Q.unknown().describe("Partial tool call arguments (incomplete, may change).")).optional().describe("Partial tool call arguments (incomplete, may change).")})}),P=Q.object({method:Q.literal("ui/notifications/tool-cancelled"),params:Q.object({reason:Q.string().optional().describe('Optional reason for the cancellation (e.g., "user action", "timeout").')})}),b=Q.object({fonts:Q.string().optional()}),g=Q.object({variables:r.optional().describe("CSS variables for theming the app."),css:b.optional().describe("CSS blocks that apps can inject.")}),H=Q.object({method:Q.literal("ui/resource-teardown"),params:Q.object({})}),a=Q.record(Q.string(),Q.unknown()),z=Q.object({text:Q.object({}).optional().describe("Host supports text content blocks."),image:Q.object({}).optional().describe("Host supports image content blocks."),audio:Q.object({}).optional().describe("Host supports audio content blocks."),resource:Q.object({}).optional().describe("Host supports resource content blocks."),resourceLink:Q.object({}).optional().describe("Host supports resource link content blocks."),structuredContent:Q.object({}).optional().describe("Host supports structured content.")}),s=Q.object({method:Q.literal("ui/notifications/request-teardown"),params:Q.object({}).optional()}),S=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),openLinks:Q.object({}).optional().describe("Host supports opening external URLs."),downloadFile:Q.object({}).optional().describe("Host supports file downloads via ui/download-file."),serverTools:Q.object({listChanged:Q.boolean().optional().describe("Host supports tools/list_changed notifications.")}).optional().describe("Host can proxy tool calls to the MCP server."),serverResources:Q.object({listChanged:Q.boolean().optional().describe("Host supports resources/list_changed notifications.")}).optional().describe("Host can proxy resource reads to the MCP server."),logging:Q.object({}).optional().describe("Host accepts log messages."),sandbox:Q.object({permissions:K.optional().describe("Permissions granted by the host (camera, microphone, geolocation)."),csp:B.optional().describe("CSP domains approved by the host.")}).optional().describe("Sandbox configuration applied by the host."),updateModelContext:z.optional().describe("Host accepts context updates (ui/update-model-context) to be included in the model's context for future turns."),message:z.optional().describe("Host supports receiving content messages (ui/message) from the view.")}),y=Q.object({experimental:Q.object({}).optional().describe("Experimental features (structure TBD)."),tools:Q.object({listChanged:Q.boolean().optional().describe("App supports tools/list_changed notifications.")}).optional().describe("App exposes MCP-style tools that the host can call."),availableDisplayModes:Q.array(G).optional().describe("Display modes the app supports.")}),t=Q.object({method:Q.literal("ui/notifications/initialized"),params:Q.object({}).optional()}),e=Q.object({csp:B.optional().describe("Content Security Policy configuration for UI resources."),permissions:K.optional().describe("Sandbox permissions requested by the UI resource."),domain:Q.string().optional().describe(`Dedicated origin for view sandbox.

		@@ -37,5 +37,5 @@ Useful when views need stable, dedicated origins for OAuth callbacks, CORS policies, or API key allowlists.
		- \`false\`: request no visible border + background
		- omitted: host decides border`)}),JQ=Q.object({method:Q.literal("ui/request-display-mode"),params:Q.object({mode:G.describe("The display mode being requested.")})}),T=Q.object({mode:G.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),u=Q.union([Q.literal("model"),Q.literal("app")]).describe("Tool visibility scope - who can access the tool."),XQ=Q.object({resourceUri:Q.string().optional(),visibility:Q.array(u).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- omitted: host decides border`)}),QQ=Q.object({method:Q.literal("ui/request-display-mode"),params:Q.object({mode:G.describe("The display mode being requested.")})}),_=Q.object({mode:G.describe("The display mode that was actually set. May differ from requested if not supported.")}).passthrough(),C=Q.union([Q.literal("model"),Q.literal("app")]).describe("Tool visibility scope - who can access the tool."),ZQ=Q.object({resourceUri:Q.string().optional(),visibility:Q.array(C).optional().describe(`Who can access this tool. Default: ["model", "app"]
		- "model": Tool visible to and callable by the agent
		- "app": Tool callable by the app from this server only`)}),RQ=Q.object({mimeTypes:Q.array(Q.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),VQ=Q.object({method:Q.literal("ui/download-file"),params:Q.object({contents:Q.array(Q.union([p,r])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),DQ=Q.object({method:Q.literal("ui/message"),params:Q.object({role:Q.literal("user").describe('Message role, currently only "user" is supported.'),content:Q.array(M).describe("Message content blocks (text, image, etc.).")})}),GQ=Q.object({method:Q.literal("ui/notifications/sandbox-resource-ready"),params:Q.object({html:Q.string().describe("HTML content to load into the inner iframe."),sandbox:Q.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:B.optional().describe("CSP configuration from resource metadata."),permissions:K.optional().describe("Sandbox permissions from resource metadata.")})}),E=Q.object({method:Q.literal("ui/notifications/tool-result"),params:c.describe("Standard MCP tool execution result.")}),k=Q.object({toolInfo:Q.object({id:l.optional().describe("JSON-RPC id of the tools/call request."),tool:n.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:g.optional().describe("Current color theme preference."),styles:y.optional().describe("Style configuration for theming the app."),displayMode:G.optional().describe("How the UI is currently displayed."),availableDisplayModes:Q.array(G).optional().describe("Display modes the host supports."),containerDimensions:Q.union([Q.object({height:Q.number().describe("Fixed container height in pixels.")}),Q.object({maxHeight:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(Q.union([Q.object({width:Q.number().describe("Fixed container width in pixels.")}),Q.object({maxWidth:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:Q.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:Q.string().optional().describe("User's timezone in IANA format."),userAgent:Q.string().optional().describe("Host application identifier."),platform:Q.union([Q.literal("web"),Q.literal("desktop"),Q.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:Q.object({touch:Q.boolean().optional().describe("Whether the device supports touch input."),hover:Q.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:Q.object({top:Q.number().describe("Top safe area inset in pixels."),right:Q.number().describe("Right safe area inset in pixels."),bottom:Q.number().describe("Bottom safe area inset in pixels."),left:Q.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),R=Q.object({method:Q.literal("ui/notifications/host-context-changed"),params:k.describe("Partial context update containing only changed fields.")}),LQ=Q.object({method:Q.literal("ui/update-model-context"),params:Q.object({content:Q.array(M).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:Q.record(Q.string(),Q.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),WQ=Q.object({method:Q.literal("ui/initialize"),params:Q.object({appInfo:b.describe("App identification (name and version)."),appCapabilities:f.describe("Features and capabilities this app provides."),protocolVersion:Q.string().describe("Protocol version this app supports.")})}),U=Q.object({protocolVersion:Q.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:b.describe("Host application identification and version."),hostCapabilities:C.describe("Features and capabilities provided by the host."),hostContext:k.describe("Rich context about the host environment.")}).passthrough();var v="ui/resourceUri",d="text/html;profile=mcp-app";class OQ extends jQ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(Z,$={},J={autoResize:!0}){super(J);this._appInfo=Z;this._capabilities=$;this.options=J;this.setRequestHandler(zQ,(X)=>{return console.log("Received ping:",X.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(Z){this.setNotificationHandler(A,($)=>Z($.params))}set ontoolinputpartial(Z){this.setNotificationHandler(P,($)=>Z($.params))}set ontoolresult(Z){this.setNotificationHandler(E,($)=>Z($.params))}set ontoolcancelled(Z){this.setNotificationHandler(H,($)=>Z($.params))}set onhostcontextchanged(Z){this.setNotificationHandler(R,($)=>{this._hostContext={...this._hostContext,...$.params},Z($.params)})}set onteardown(Z){this.setRequestHandler(_,($,J)=>Z($.params,J))}set oncalltool(Z){this.setRequestHandler(BQ,($,J)=>Z($.params,J))}set onlisttools(Z){this.setRequestHandler(FQ,($,J)=>Z($.params,J))}assertCapabilityForMethod(Z){}assertRequestHandlerCapability(Z){switch(Z){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${Z})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${Z} registered`)}}assertNotificationCapability(Z){}assertTaskCapability(Z){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(Z){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(Z,$){if(typeof Z==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${Z}"). Did you mean: callServerTool({ name: "${Z}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:Z},KQ,$)}async readServerResource(Z,$){return await this.request({method:"resources/read",params:Z},qQ,$)}async listServerResources(Z,$){return await this.request({method:"resources/list",params:Z},YQ,$)}sendMessage(Z,$){return this.request({method:"ui/message",params:Z},w,$)}sendLog(Z){return this.notification({method:"notifications/message",params:Z})}updateModelContext(Z,$){return this.request({method:"ui/update-model-context",params:Z},NQ,$)}openLink(Z,$){return this.request({method:"ui/open-link",params:Z},O,$)}sendOpenLink=this.openLink;downloadFile(Z,$){return this.request({method:"ui/download-file",params:Z},I,$)}requestTeardown(Z={}){return this.notification({method:"ui/notifications/request-teardown",params:Z})}requestDisplayMode(Z,$){return this.request({method:"ui/request-display-mode",params:Z},T,$)}sendSizeChanged(Z){return this.notification({method:"ui/notifications/size-changed",params:Z})}setupSizeChangedNotifications(){let Z=!1,$=0,J=0,X=()=>{if(Z)return;Z=!0,requestAnimationFrame(()=>{Z=!1;let V=document.documentElement,L=V.style.width,W=V.style.height;V.style.width="fit-content",V.style.height="max-content";let x=V.getBoundingClientRect();V.style.width=L,V.style.height=W;let h=window.innerWidth-V.clientWidth,N=Math.ceil(x.width+h),Y=Math.ceil(x.height);if(N!==$\|\|Y!==J)$=N,J=Y,this.sendSizeChanged({width:N,height:Y})})};X();let D=new ResizeObserver(X);return D.observe(document.documentElement),D.observe(document.body),()=>D.disconnect()}async connect(Z=new j(window.parent,window.parent),$){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(Z);try{let J=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:F}},U,$);if(J===void 0)throw Error(`Server sent invalid initialize result: ${J}`);if(this._hostCapabilities=J.hostCapabilities,this._hostInfo=J.hostInfo,this._hostContext=J.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(J){throw this.close(),J}}}function hZ(Z,$,J,X){let D=J._meta,V=D.ui,L=D[v],W=D;if(V?.resourceUri&&!L)W={...D,[v]:V.resourceUri};else if(L&&!V?.resourceUri)W={...D,ui:{...V,resourceUri:L}};return Z.registerTool($,{...J,_meta:W},X)}function mZ(Z,$,J,X,D){return Z.registerResource($,J,{mimeType:d,...X},D)}var IQ="io.modelcontextprotocol/ui";function cZ(Z){if(!Z)return;return Z.extensions?.[IQ]}export{hZ as registerAppTool,mZ as registerAppResource,cZ as getUiCapability,v as RESOURCE_URI_META_KEY,d as RESOURCE_MIME_TYPE,IQ as EXTENSION_ID};
		- "app": Tool callable by the app from this server only`)}),TQ=Q.object({mimeTypes:Q.array(Q.string()).optional().describe('Array of supported MIME types for UI resources.\nMust include `"text/html;profile=mcp-app"` for MCP Apps support.')}),$Q=Q.object({method:Q.literal("ui/download-file"),params:Q.object({contents:Q.array(Q.union([h,c])).describe("Resource contents to download — embedded (inline data) or linked (host fetches). Uses standard MCP resource types.")})}),JQ=Q.object({method:Q.literal("ui/message"),params:Q.object({role:Q.literal("user").describe('Message role, currently only "user" is supported.'),content:Q.array(v).describe("Message content blocks (text, image, etc.).")})}),XQ=Q.object({method:Q.literal("ui/notifications/sandbox-resource-ready"),params:Q.object({html:Q.string().describe("HTML content to load into the inner iframe."),sandbox:Q.string().optional().describe("Optional override for the inner iframe's sandbox attribute."),csp:B.optional().describe("CSP configuration from resource metadata."),permissions:K.optional().describe("Sandbox permissions from resource metadata.")})}),T=Q.object({method:Q.literal("ui/notifications/tool-result"),params:d.describe("Standard MCP tool execution result.")}),E=Q.object({toolInfo:Q.object({id:m.optional().describe("JSON-RPC id of the tools/call request."),tool:l.describe("Tool definition including name, inputSchema, etc.")}).optional().describe("Metadata of the tool call that instantiated this App."),theme:M.optional().describe("Current color theme preference."),styles:g.optional().describe("Style configuration for theming the app."),displayMode:G.optional().describe("How the UI is currently displayed."),availableDisplayModes:Q.array(G).optional().describe("Display modes the host supports."),containerDimensions:Q.union([Q.object({height:Q.number().describe("Fixed container height in pixels.")}),Q.object({maxHeight:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container height in pixels.")})]).and(Q.union([Q.object({width:Q.number().describe("Fixed container width in pixels.")}),Q.object({maxWidth:Q.union([Q.number(),Q.undefined()]).optional().describe("Maximum container width in pixels.")})])).optional().describe(`Container dimensions. Represents the dimensions of the iframe or other
		container holding the app. Specify either width or maxWidth, and either height or maxHeight.`),locale:Q.string().optional().describe("User's language and region preference in BCP 47 format."),timeZone:Q.string().optional().describe("User's timezone in IANA format."),userAgent:Q.string().optional().describe("Host application identifier."),platform:Q.union([Q.literal("web"),Q.literal("desktop"),Q.literal("mobile")]).optional().describe("Platform type for responsive design decisions."),deviceCapabilities:Q.object({touch:Q.boolean().optional().describe("Whether the device supports touch input."),hover:Q.boolean().optional().describe("Whether the device supports hover interactions.")}).optional().describe("Device input capabilities."),safeAreaInsets:Q.object({top:Q.number().describe("Top safe area inset in pixels."),right:Q.number().describe("Right safe area inset in pixels."),bottom:Q.number().describe("Bottom safe area inset in pixels."),left:Q.number().describe("Left safe area inset in pixels.")}).optional().describe("Mobile safe area boundaries in pixels.")}).passthrough(),k=Q.object({method:Q.literal("ui/notifications/host-context-changed"),params:E.describe("Partial context update containing only changed fields.")}),VQ=Q.object({method:Q.literal("ui/update-model-context"),params:Q.object({content:Q.array(v).optional().describe("Context content blocks (text, image, etc.)."),structuredContent:Q.record(Q.string(),Q.unknown().describe("Structured content for machine-readable context data.")).optional().describe("Structured content for machine-readable context data.")})}),WQ=Q.object({method:Q.literal("ui/initialize"),params:Q.object({appInfo:x.describe("App identification (name and version)."),appCapabilities:y.describe("Features and capabilities this app provides."),protocolVersion:Q.string().describe("Protocol version this app supports.")})}),R=Q.object({protocolVersion:Q.string().describe('Negotiated protocol version string (e.g., "2025-11-21").'),hostInfo:x.describe("Host application identification and version."),hostCapabilities:S.describe("Features and capabilities provided by the host."),hostContext:E.describe("Rich context about the host environment.")}).passthrough();var U="ui/resourceUri",f="text/html;profile=mcp-app";class FQ extends DQ{_appInfo;_capabilities;options;_hostCapabilities;_hostInfo;_hostContext;constructor(Z,$={},J={autoResize:!0}){super(J);this._appInfo=Z;this._capabilities=$;this.options=J;this.setRequestHandler(NQ,(X)=>{return console.log("Received ping:",X.params),{}}),this.onhostcontextchanged=()=>{}}getHostCapabilities(){return this._hostCapabilities}getHostVersion(){return this._hostInfo}getHostContext(){return this._hostContext}set ontoolinput(Z){this.setNotificationHandler(w,($)=>Z($.params))}set ontoolinputpartial(Z){this.setNotificationHandler(A,($)=>Z($.params))}set ontoolresult(Z){this.setNotificationHandler(T,($)=>Z($.params))}set ontoolcancelled(Z){this.setNotificationHandler(P,($)=>Z($.params))}set onhostcontextchanged(Z){this.setNotificationHandler(k,($)=>{this._hostContext={...this._hostContext,...$.params},Z($.params)})}set onteardown(Z){this.setRequestHandler(H,($,J)=>Z($.params,J))}set oncalltool(Z){this.setRequestHandler(GQ,($,J)=>Z($.params,J))}set onlisttools(Z){this.setRequestHandler(KQ,($,J)=>Z($.params,J))}assertCapabilityForMethod(Z){}assertRequestHandlerCapability(Z){switch(Z){case"tools/call":case"tools/list":if(!this._capabilities.tools)throw Error(`Client does not support tool capability (required for ${Z})`);return;case"ping":case"ui/resource-teardown":return;default:throw Error(`No handler for method ${Z} registered`)}}assertNotificationCapability(Z){}assertTaskCapability(Z){throw Error("Tasks are not supported in MCP Apps")}assertTaskHandlerCapability(Z){throw Error("Task handlers are not supported in MCP Apps")}async callServerTool(Z,$){if(typeof Z==="string")throw Error(`callServerTool() expects an object as its first argument, but received a string ("${Z}"). Did you mean: callServerTool({ name: "${Z}", arguments: { ... } })?`);return await this.request({method:"tools/call",params:Z},LQ,$)}async readServerResource(Z,$){return await this.request({method:"resources/read",params:Z},YQ,$)}async listServerResources(Z,$){return await this.request({method:"resources/list",params:Z},BQ,$)}sendMessage(Z,$){return this.request({method:"ui/message",params:Z},I,$)}sendLog(Z){return this.notification({method:"notifications/message",params:Z})}updateModelContext(Z,$){return this.request({method:"ui/update-model-context",params:Z},jQ,$)}openLink(Z,$){return this.request({method:"ui/open-link",params:Z},q,$)}sendOpenLink=this.openLink;downloadFile(Z,$){return this.request({method:"ui/download-file",params:Z},O,$)}requestTeardown(Z={}){return this.notification({method:"ui/notifications/request-teardown",params:Z})}requestDisplayMode(Z,$){return this.request({method:"ui/request-display-mode",params:Z},_,$)}sendSizeChanged(Z){return this.notification({method:"ui/notifications/size-changed",params:Z})}setupSizeChangedNotifications(){let Z=!1,$=0,J=0,X=()=>{if(Z)return;Z=!0,requestAnimationFrame(()=>{Z=!1;let W=document.documentElement,L=W.style.height;W.style.height="max-content";let D=Math.ceil(W.getBoundingClientRect().height);W.style.height=L;let N=Math.ceil(window.innerWidth);if(N!==$\|\|D!==J)$=N,J=D,this.sendSizeChanged({width:N,height:D})})};X();let V=new ResizeObserver(X);return V.observe(document.documentElement),V.observe(document.body),()=>V.disconnect()}async connect(Z=new j(window.parent,window.parent),$){if(this.transport)throw Error("App is already connected. Call close() before connecting again.");await super.connect(Z);try{let J=await this.request({method:"ui/initialize",params:{appCapabilities:this._capabilities,appInfo:this._appInfo,protocolVersion:Y}},R,$);if(J===void 0)throw Error(`Server sent invalid initialize result: ${J}`);if(this._hostCapabilities=J.hostCapabilities,this._hostInfo=J.hostInfo,this._hostContext=J.hostContext,await this.notification({method:"ui/notifications/initialized"}),this.options?.autoResize)this.setupSizeChangedNotifications()}catch(J){throw this.close(),J}}}function fZ(Z,$,J,X){let V=J._meta,W=V.ui,L=V[U],D=V;if(W?.resourceUri&&!L)D={...V,[U]:W.resourceUri};else if(L&&!W?.resourceUri)D={...V,ui:{...W,resourceUri:L}};return Z.registerTool($,{...J,_meta:D},X)}function uZ(Z,$,J,X,V){return Z.registerResource($,J,{mimeType:f,...X},V)}var zQ="io.modelcontextprotocol/ui";function dZ(Z){if(!Z)return;return Z.extensions?.[zQ]}export{fZ as registerAppTool,uZ as registerAppResource,dZ as getUiCapability,U as RESOURCE_URI_META_KEY,f as RESOURCE_MIME_TYPE,zQ as EXTENSION_ID};

+1

-1

package.json

		@@ -8,3 +8,3 @@ {
		"homepage": "https://github.com/modelcontextprotocol/ext-apps",
		"version": "1.3.1",
		"version": "1.3.2",
		"license": "MIT",
		@@ -11,0 +11,0 @@ "description": "MCP Apps SDK — Enable MCP servers to display interactive user interfaces in conversational clients.",

dist/src/app-with-deps.js

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dist/src/react/react-with-deps.js

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@modelcontextprotocol/ext-apps - npm Package Compare versions

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