Get Agent

{  "agent": {    "agent_id": "string",    "tenant_id": "string",    "last_seen": "2019-08-24T14:15:22Z",    "active": true,    "invocations": 0,    "failed": 0,    "total_tokens": 0,    "estimated_cost_usd": "string",    "p50_latency_ms": 0,    "p95_latency_ms": 0  },  "models": [    {      "model": "string",      "calls": 0,      "input_tokens": 0,      "output_tokens": 0,      "reasoning_tokens": 0,      "estimated_cost_usd": "string",      "unpriced_spans": 0    }  ],  "tools": [    {      "tool_name": "string",      "calls": 0,      "errors": 0,      "error_rate": 0,      "p50_latency_ms": 0,      "p95_latency_ms": 0    }  ],  "recent_runs": [    {      "trace_id": "string",      "root_span_id": "string",      "tenant_id": "string",      "agent_id": "string",      "conversation_id": "string",      "user_id": "string",      "feature": "string",      "started_at": "2019-08-24T14:15:22Z",      "duration_ms": 0,      "status": "string",      "error_type": "string",      "estimated_cost_usd": "string",      "total_tokens": 0    }  ]}

{  "detail": [    {      "loc": [        "string"      ],      "msg": "string",      "type": "string",      "input": null,      "ctx": {}    }  ]}