{"name":"Echo Agent","description":"Echoes your messages back. Useful for testing A2A clients and plumbing.","supportedInterfaces":[{"url":"https://echo-agent.mattiapapaccioli.com","protocolBinding":"JSONRPC","protocolVersion":"1.0"},{"url":"https://echo-agent.mattiapapaccioli.com","protocolBinding":"HTTP+JSON","protocolVersion":"1.0"}],"provider":{"url":"https://mattiapapaccioli.com","organization":"Mattia Papaccioli"},"version":"0.1.0","capabilities":{"streaming":true},"defaultInputModes":["text/plain"],"defaultOutputModes":["text/plain"],"skills":[{"id":"echo","name":"Echo","description":"Replies with the text you send, as a single message.","tags":["test","echo"],"examples":["hello world"]},{"id":"stream_echo","name":"Streaming echo","description":"Prefix your message with \"stream:\" to get a task that streams the text back word by word as an artifact.","tags":["test","streaming","task"],"examples":["stream: the quick brown fox"]}]}