feat: preserve planner context across task steps

packages/cloud-platform/cloud/internal_api/api.py

@@ -6,6 +6,7 @@ import json
 import logging
 from collections.abc import Awaitable, Callable
 from datetime import timedelta
+from inspect import Parameter, signature
 from time import monotonic
 from typing import TYPE_CHECKING
 from uuid import uuid4
@@ -505,13 +506,21 @@ def create_internal_router(
 
         started_at = monotonic()
         try:
-            decision = client.decide(
-                system_prompt=payload.system_prompt,
-                user_prompt=payload.user_prompt,
-                screenshot=screenshot,
-                tools=tools,
-                timeout=planner_timeout,
-            )
+            decision_kwargs = {
+                "system_prompt": payload.system_prompt,
+                "user_prompt": payload.user_prompt,
+                "screenshot": screenshot,
+                "tools": tools,
+                "timeout": planner_timeout,
+            }
+            parameters = signature(client.decide).parameters.values()
+            if any(
+                parameter.name == "history"
+                or parameter.kind == Parameter.VAR_KEYWORD
+                for parameter in parameters
+            ):
+                decision_kwargs["history"] = payload.history
+            decision = client.decide(**decision_kwargs)
         except ToolCallUnavailable as exc:
             logger.info(
                 "planner-decision request failed",

packages/cloud-platform/cloud/internal_api/models.py

@@ -143,6 +143,7 @@ class PlannerDecisionRequest(BaseModel):
     host_id: str = Field(min_length=1)
     system_prompt: str
     user_prompt: str
+    history: list[dict[str, Any]] = Field(default_factory=list)
     screenshot_base64: str | None = None
     tools: list[PlannerToolSpecModel] = Field(default_factory=list)
     timeout_seconds: float = Field(default=30.0, gt=0, le=120)