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Capstone: AppFunctions — Android MCP

Project briefSelf-paced

The project

Expose task search and confirmed task creation through AppFunctions and verify discovery and execution on supported Android.

Prerequisites

Complete the six teaching modules and their exercises. Keep the design notes and failure cases: they form the starting evidence for this project.

Build in increments

1. What AppFunctions exposes

Understand app capabilities as agent-accessible operations. Apply the module decision to this project. Your checkpoint: You can explain both the capability and the current rollout limitations.

2. Project configuration and registration

Connect generated metadata with the app’s service entry point. Apply the module decision to this project. Your checkpoint: The function appears in device-level discovery with the intended schema.

3. Designing typed capabilities

Make the public function contract understandable and stable. Apply the module decision to this project. Your checkpoint: A caller can understand the contract without knowing your internal repository classes.

4. Permissions, identity and confirmation

Treat discovered functions as another external entry point. Apply the module decision to this project. Your checkpoint: External invocation cannot bypass the checks used by the normal app UI.

5. Discovery and execution testing

Use development tools to verify the complete function lifecycle. Apply the module decision to this project. Your checkpoint: You can isolate platform availability from function correctness.

6. Agent-ready product delivery

Ship an integration whose limits are visible and recoverable. Apply the module decision to this project. Your checkpoint: Your demo distinguishes working local integration from restricted production assistant availability.

Acceptance criteria

  • Verify registration and invocation using the supported development tools
  • Enforce record ownership and confirmation inside the app
  • Document preview limitations and behavior on unsupported devices

Evidence to submit

  • A repository or reproducible design artifact with setup instructions and tested tool versions.
  • A diagram showing components, data flow, authority and failure boundaries.
  • An evaluation table with inputs, expected results, actual results and explanations of failures.
  • A demonstration of the normal path and at least two relevant failure paths.
  • A short decision record covering alternatives, known limitations and the next improvement.

Review rubric

DimensionReady to demonstrateRevisit when
UnderstandingExplain each boundary and why it existsYou can only repeat framework terminology
ImplementationReproduce the core behavior from a clean setupHidden local state is required
ReliabilityShow bounded failures and useful recoveryThe demo only works on the happy path
EvidencePresent observed outcomes and limitationsSuccess is inferred from a generated answer
OwnershipModify a requirement and explain the consequencesYou cannot adapt the implementation independently

Do not treat a completed reading checklist as proof of project readiness. Revisit any module whose checkpoint you cannot demonstrate.

YOUR LEARNING JOURNEY

0 of 13 available lessons completed

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Capstone: AppFunctions — Android MCP | AppFunctions — Android MCP | Android Engineers