Android AppFunctions let developers expose app capabilities as structured tools to AI agents via Android's intelligence system, which follows a local MCP client-server model. The post walks through integrating AppFunctions into a travel planning app (JetPacker), covering feature selection rationale (expense tracking, itinerary management, voice notes), implementation with @AppFunction and @AppFunctionSerializable annotations, KSP-based code generation, service registration, and testing via ADB commands or the AppFunctions Testing Agent. KDoc comments compile directly into the tool schema used by privileged agents to resolve parameters at runtime.
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Android MCP powered by AppFunctionsHow we accelerated development with Android skillsProviding app features to the intelligence systemTesting and verifying your AppFunctionsWrapping it upLearn more259 Impressions