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#0
Learn A2A - Pre-Requisites Skills & Environment Setup
Opening episode: the basic AI agent skills, JSON-RPC & HTTP/SSE, and OpenAPI-style discoverability you must master. Plus the Node.js/Python setup, A2A SDKs, optional Google ADK, and an environment for running two local agents simultaneously.
August 3, 2026
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#1
Learn A2A - History, Background & Why You Need A2A
From agents that can't talk to each other to the birth of a shared protocol: A2A's timeline from Google (Apr 2025) to the Linux Foundation, iterations from v0.1 to v1.0, and why agents interact as opaque peers rather than as tools.
August 3, 2026
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#2
Learn A2A - Core Concepts & Main Architecture
Dissecting A2A's core architecture: the two roles of client agent and remote agent, the Agent Card as the discovery gateway, the Task lifecycle as the communication contract, Message/Part for multimodal content, and the four protocol bindings JSON-RPC, HTTP, gRPC, and SSE.
August 3, 2026
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#3
Learn A2A - Agent Card & Discovery
Dissecting the Agent Card thoroughly: agentName, description, capabilities, skills, authentication, and the signed security cards in v1.0. Including discovery practice — URL publication, fetching, and verifying the authenticity of an Agent Card.
August 3, 2026
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#4
Learn A2A - Task Lifecycle & Messages
Breaking down the Task as the unit of work: the state machine from submitted, working, input-required, to completed/failed/canceled, along with progress and metadata. Then dissecting Message/Part with the user and agent roles, the text/file/structured part types, and streaming deltas.
August 3, 2026
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#5
Learn A2A - JSON-RPC Methods & HTTP Binding
Dissecting A2A's protocol layer: the five core JSON-RPC methods from message/send, tasks/get, tasks/cancel, tasks/pushNotificationConfig, to messages/list, complete with HTTP POST binding practice and the SSE endpoint for streaming.
August 3, 2026
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#6
Learn A2A - SDK: Python & TypeScript
Build real A2A agents with the official SDKs. We dissect the Python a2a-sdk from AgentCard to executor, then the @a2a-js/sdk TypeScript SDK with handler and streaming patterns, complete with client examples.
August 3, 2026
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#7
Learn A2A - Streaming & Push Notifications
Discover the two ways agents report task progress. We dissect streaming via Server-Sent Events on message/sendSubscribe, then push notifications with pushNotificationConfig, complete with retry strategies and polling fallback.
August 3, 2026
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#8
Learn A2A - Content & Structured Output
Dive into the Part types for inter-agent content: text, files with dataURI and mimeType, up to structured data based on JSON schema. Including a case study of structured lead transfer between agents without free parsing.
August 3, 2026
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#9
Learn A2A - Authentication & Security
Secure inter-agent communication. We dissect the authentication field on the Agent Card with OAuth 2.1, API key, and JWT flows, then signed agent cards for verifying the identity and capability integrity of the counterpart agent.
August 3, 2026
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