a2a_schema_example.json•6.04 kB
{
"agentCard": {
"name": "ExampleAgent",
"description": "An example A2A agent for demonstration purposes",
"url": "https://api.example.com/a2a",
"provider": {
"organization": "Example Organization",
"url": "https://example.com"
},
"version": "1.0.0",
"documentationUrl": "https://example.com/docs",
"capabilities": {
"streaming": true,
"pushNotifications": true,
"stateTransitionHistory": true
},
"authentication": {
"schemes": ["bearer", "basic"],
"credentials": null
},
"defaultInputModes": ["text"],
"defaultOutputModes": ["text"],
"skills": [
{
"id": "write",
"name": "Writing Assistant",
"description": "Can write various types of content",
"tags": ["writing", "creative", "content"],
"examples": [
"Write me a blog post about AI protocols",
"Draft an email to my team about our new project"
],
"inputModes": ["text"],
"outputModes": ["text"]
},
{
"id": "analyze",
"name": "Data Analyzer",
"description": "Can analyze various types of structured data",
"tags": ["analysis", "data", "visualization"],
"examples": [
"Analyze this CSV file and extract insights",
"Create a summary of these quarterly results"
],
"inputModes": ["text", "file"],
"outputModes": ["text", "data"]
}
]
},
"task": {
"id": "task-12345",
"sessionId": "session-6789",
"status": {
"state": "working",
"timestamp": "2025-04-28T17:15:30Z"
},
"artifacts": [
{
"name": "Analysis Result",
"description": "Result of data analysis task",
"parts": [
{
"type": "text",
"text": "Based on the analysis, the data shows a significant trend in...",
"metadata": {
"format": "markdown"
}
},
{
"type": "data",
"data": {
"summary": {
"average": 73.2,
"median": 68.5,
"trend": "increasing"
}
},
"metadata": {
"dataType": "analysis-summary"
}
}
],
"index": 0,
"metadata": {
"createdAt": "2025-04-28T17:16:00Z"
}
}
],
"history": [
{
"role": "user",
"parts": [
{
"type": "text",
"text": "Can you analyze this dataset and tell me the key trends?",
"metadata": null
},
{
"type": "file",
"file": {
"name": "quarterly_data.csv",
"mimeType": "text/csv",
"bytes": "base64encodedcontentwouldbehere..."
},
"metadata": {
"fileSize": 15240
}
}
],
"metadata": {
"timestamp": "2025-04-28T17:15:00Z"
}
},
{
"role": "agent",
"parts": [
{
"type": "text",
"text": "I'll analyze this dataset for you. Let me extract the key trends...",
"metadata": null
}
],
"metadata": {
"timestamp": "2025-04-28T17:15:10Z"
}
}
],
"metadata": {
"requestSource": "web",
"priority": "normal"
}
},
"requests": {
"sendTask": {
"jsonrpc": "2.0",
"id": "req-123",
"method": "tasks/send",
"params": {
"id": "task-12345",
"message": {
"role": "user",
"parts": [
{
"type": "text",
"text": "Can you analyze this dataset and tell me the key trends?"
},
{
"type": "file",
"file": {
"name": "quarterly_data.csv",
"mimeType": "text/csv",
"bytes": "base64encodedcontentwouldbehere..."
}
}
]
}
}
},
"getTask": {
"jsonrpc": "2.0",
"id": "req-456",
"method": "tasks/get",
"params": {
"id": "task-12345",
"historyLength": 10
}
},
"cancelTask": {
"jsonrpc": "2.0",
"id": "req-789",
"method": "tasks/cancel",
"params": {
"id": "task-12345"
}
}
},
"responses": {
"sendTaskResponse": {
"jsonrpc": "2.0",
"id": "req-123",
"result": {
"id": "task-12345",
"status": {
"state": "working",
"timestamp": "2025-04-28T17:15:10Z"
}
}
},
"streamingUpdate": {
"jsonrpc": "2.0",
"id": "req-123",
"result": {
"id": "task-12345",
"status": {
"state": "completed",
"message": {
"role": "agent",
"parts": [
{
"type": "text",
"text": "Based on my analysis, the key trends in your data are..."
}
]
},
"timestamp": "2025-04-28T17:15:45Z"
},
"final": true
}
},
"artifactUpdate": {
"jsonrpc": "2.0",
"id": "req-123",
"result": {
"id": "task-12345",
"artifact": {
"name": "Data Summary",
"parts": [
{
"type": "data",
"data": {
"summary": {
"trend": "upward",
"confidence": 0.87,
"keyMetrics": {
"growth": "12.3%",
"volatility": "low"
}
}
}
}
],
"index": 0
}
}
},
"errorResponse": {
"jsonrpc": "2.0",
"id": "req-456",
"error": {
"code": -32001,
"message": "Task not found",
"data": null
}
}
}
}