ci: run mandatory and capabilities TCK tests for JSON-RPC transport

[ishymko]

Description

Run TCK tests with mandatory and capabilities categories for JSON-RPC transport (GRPC and REST fail at the moment).

Re #639

[gemini-code-assist]

Summary of Changes

Hello @ishymko, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a new Python-based System Under Test (SUT) agent, tck/sut_agent.py, specifically designed to facilitate the execution of mandatory and capabilities Technology Compatibility Kit (TCK) tests for the JSON-RPC transport. The agent simulates core functionalities like message processing and task cancellation, providing a robust environment for validating the JSON-RPC implementation against defined TCK standards.

Highlights

• New SUT Agent for TCK Tests: Introduced tck/sut_agent.py to provide a System Under Test (SUT) agent for Technology Compatibility Kit (TCK) tests.
• JSON-RPC Transport Implementation: The new agent is exposed via a FastAPI application using JSON-RPC transport, enabling testing of this specific communication protocol.
• Simulated Agent Behavior: The SUTAgentExecutor within the agent simulates core functionalities such as processing messages, introducing delays, and handling task cancellations, providing a realistic test environment.
• Agent Capabilities Definition: The agent's AgentCard explicitly defines its capabilities, including streaming, state transition history, and preferred JSON-RPC transport, which are crucial for capabilities TCK tests.

Ignored Files

• Ignored by pattern: .github/workflows/** (1)
  • .github/workflows/run-tck.yaml

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[gemini-code-assist]

Code Review

The pull request introduces a new test agent (tck/sut_agent.py) for mandatory and capabilities TCK tests for JSON-RPC transport. The new agent simulates basic agent execution, including task cancellation and status updates. The setup correctly configures an AgentCard and integrates with a FastAPI application for JSON-RPC communication. There are a few minor issues related to duplicate and unused imports, and a small point of clarity regarding context ID handling in the test agent.