google-adk-kotlin-core/com.google.adk.kt.tools.mcp

Package-level declarations

Types

McpConnectionParameters

sealed class McpConnectionParameters

Sealed class for holding MCP connection parameters.

McpProgressUpdate

data class McpProgressUpdate(val progress: Double, val total: Double?, val message: String?)

A progress notification emitted by an MCP tool invocation.

McpTool

class McpTool : BaseTool

Turns an MCP Tool into an ADK BaseTool.

McpToolAnnotations

data class McpToolAnnotations(val title: String? = null, val readOnlyHint: Boolean? = null, val destructiveHint: Boolean? = null, val idempotentHint: Boolean? = null, val openWorldHint: Boolean? = null)

SDK-neutral MCP tool annotations, exposed for framework interop. Kept independent of the Java and Kotlin MCP SDK types so the interop surface is the same on JVM and Android; each platform maps its SDK's annotations into this. A null hint means the server omitted it: per the MCP spec, callers should treat an absent readOnlyHint or idempotentHint as false and an absent destructiveHint or openWorldHint as true.

McpToolException

sealed class McpToolException : RuntimeException

Base exception for MCP tools on JVM and Android.

McpToolset

class McpToolset : Toolset

Connects to an MCP Server and exposes the server's MCP tools to an agent as ADK BaseTools.

McpTransportConfig

sealed interface McpTransportConfig

Transport configurations supported by the common JVM/Android MCP API.

RemoteMcpToolsetConfig

data class RemoteMcpToolsetConfig(val transport: McpTransportConfig, val toolFilter: ToolFilter? = null, val useMcpResources: Boolean = false, val maxMcpResourceLength: Int = DEFAULT_MAX_MCP_RESOURCE_LENGTH)

Common configuration for a remote Streamable HTTP MCP toolset.

Functions

jsonSchemaToAdkSchema

fun jsonSchemaToAdkSchema(schema: Map<String, Any>): Schema

Converts a decoded JSON Schema map to an ADK Schema, resolving $ref/$defs, splitting type unions into anyOf, narrowing required, and bounding recursion. Exposed so an adapter that receives a tool schema as JSON (for example the Spring AI tool bridge) reuses this one converter rather than forking it.