feat: add operation_id to retain response

hindsight-api/hindsight_api/api/http.py

@@ -381,6 +381,10 @@ class RetainResponse(BaseModel):
     is_async: bool = Field(
         alias="async", serialization_alias="async", description="Whether the operation was processed asynchronously"
     )
+    operation_id: str | None = Field(
+        default=None,
+        description="Operation ID for tracking async operations. Use GET /v1/default/banks/{bank_id}/operations to list operations and find this ID. Only present when async=true.",
+    )
     usage: TokenUsage | None = Field(
         default=None,
         description="Token usage metrics for LLM calls during fact extraction (only present for synchronous operations)",
@@ -2034,6 +2038,7 @@ def _register_routes(app: FastAPI):
                         "bank_id": bank_id,
                         "items_count": result["items_count"],
                         "async": True,
+                        "operation_id": result["operation_id"],
                     }
                 )
             else:

hindsight-clients/python/hindsight_client_api/models/retain_response.py

@@ -31,8 +31,9 @@ class RetainResponse(BaseModel):
     bank_id: StrictStr
     items_count: StrictInt
     var_async: StrictBool = Field(description="Whether the operation was processed asynchronously", alias="async")
+    operation_id: Optional[StrictStr] = None
     usage: Optional[TokenUsage] = None
-    __properties: ClassVar[List[str]] = ["success", "bank_id", "items_count", "async", "usage"]
+    __properties: ClassVar[List[str]] = ["success", "bank_id", "items_count", "async", "operation_id", "usage"]
 
     model_config = ConfigDict(
         populate_by_name=True,
@@ -76,6 +77,11 @@ class RetainResponse(BaseModel):
         # override the default output from pydantic by calling `to_dict()` of usage
         if self.usage:
             _dict['usage'] = self.usage.to_dict()
+        # set to None if operation_id (nullable) is None
+        # and model_fields_set contains the field
+        if self.operation_id is None and "operation_id" in self.model_fields_set:
+            _dict['operation_id'] = None
+
         # set to None if usage (nullable) is None
         # and model_fields_set contains the field
         if self.usage is None and "usage" in self.model_fields_set:
@@ -97,6 +103,7 @@ class RetainResponse(BaseModel):
             "bank_id": obj.get("bank_id"),
             "items_count": obj.get("items_count"),
             "async": obj.get("async"),
+            "operation_id": obj.get("operation_id"),
             "usage": TokenUsage.from_dict(obj["usage"]) if obj.get("usage") is not None else None
         })
         return _obj

hindsight-clients/typescript/generated/types.gen.ts

@@ -1018,6 +1018,12 @@ export type RetainResponse = {
    * Whether the operation was processed asynchronously
    */
   async: boolean;
+  /**
+   * Operation Id
+   *
+   * Operation ID for tracking async operations. Use GET /v1/default/banks/{bank_id}/operations to list operations and find this ID. Only present when async=true.
+   */
+  operation_id?: string | null;
   /**
    * Token usage metrics for LLM calls during fact extraction (only present for synchronous operations)
    */

hindsight-docs/docs/developer/api/operations.md

@@ -30,6 +30,67 @@ Support for external streaming platforms like Kafka for scale-out processing is
 | **access_count_update** | After `recall` | Tracks which memories are accessed for relevance scoring |
 | **regenerate_observations** | Bank profile update | Regenerates entity observations when disposition changes |
 
+## Async Retain Example
+
+When retaining large batches of memories, use `async=true` to process in the background. The response includes an `operation_id` that you can use to poll for completion.
+
+### 1. Submit async retain request
+
+```bash
+curl -X POST "http://localhost:8000/v1/default/banks/my-bank/memories" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "items": [
+      {"content": "Alice joined Google in 2023"},
+      {"content": "Bob prefers Python over JavaScript"}
+    ],
+    "async": true
+  }'
+```
+
+Response:
+```json
+{
+  "success": true,
+  "bank_id": "my-bank",
+  "items_count": 2,
+  "async": true,
+  "operation_id": "550e8400-e29b-41d4-a716-446655440000"
+}
+```
+
+### 2. Poll for operation status
+
+```bash
+curl "http://localhost:8000/v1/default/banks/my-bank/operations"
+```
+
+Response:
+```json
+{
+  "bank_id": "my-bank",
+  "operations": [
+    {
+      "id": "550e8400-e29b-41d4-a716-446655440000",
+      "task_type": "retain",
+      "items_count": 2,
+      "document_id": null,
+      "created_at": "2024-01-15T10:30:00Z",
+      "status": "completed",
+      "error_message": null
+    }
+  ]
+}
+```
+
+### Operation Status Values
+
+| Status | Description |
+|--------|-------------|
+| `pending` | Operation is queued and waiting to be processed |
+| `completed` | Operation finished successfully |
+| `failed` | Operation failed (check `error_message` for details) |
+
 ## Next Steps
 
 - [**Documents**](./documents) — Track document sources

hindsight-docs/static/openapi.json

@@ -3524,6 +3524,18 @@
             "title": "Async",
             "description": "Whether the operation was processed asynchronously"
           },
+          "operation_id": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "title": "Operation Id",
+            "description": "Operation ID for tracking async operations. Use GET /v1/default/banks/{bank_id}/operations to list operations and find this ID. Only present when async=true."
+          },
           "usage": {
             "anyOf": [
               {