Replaces the stub Planner's fixed describe_screen/[] behavior with a real decision-maker: AIPlanner uses native tool/function calling (Anthropic or OpenAI, pluggable via AI_PLANNER_PROVIDER) to select exactly one grounded action per turn, with an explicit finish_task(success, reason) tool for completion/failure instead of an ambiguous "no tool call" signal. Default disabled (AI_PLANNER_ENABLED=false) and additive; TaskRunner falls back to the existing stub Planner unchanged when disabled. Amends CONSTITUTION.md's Perception Boundary with one narrow exception: only the AI Planner may receive the current step's raw screenshot bytes alongside Scene, for vision-grounded coordinate grounding. Also fixes a latent gap in TaskRunner.run(): observe/plan exceptions are now caught per iteration and turned into a failed task with a failure_reason, instead of propagating uncaught. openspec change: ai-planner-runtime. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
117 lines
3.8 KiB
Python
117 lines
3.8 KiB
Python
from __future__ import annotations
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from typing import Any
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import pytest
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from core.errors import TaskFailedError
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from core.models import Bounds, Scene, SceneElement
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from runtime.ai_planner import AIPlanner
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from runtime.context import TaskContext
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from runtime.planner import PlannedStep
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from runtime.planner_config import PlannerConfig
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from runtime.tool_calling_client import ToolCallDecision
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from runtime.tool_specs import ALL_TOOL_SPECS
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class FakeToolCallingClient:
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def __init__(self, decision: ToolCallDecision) -> None:
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self.decision = decision
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self.calls: list[dict[str, Any]] = []
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def decide(
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self,
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*,
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system_prompt: str,
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user_prompt: str,
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screenshot: bytes | None,
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tools: list[Any],
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timeout: float,
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) -> ToolCallDecision:
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self.calls.append(
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{
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"system_prompt": system_prompt,
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"user_prompt": user_prompt,
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"screenshot": screenshot,
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"tools": tools,
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"timeout": timeout,
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}
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)
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return self.decision
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def _scene() -> Scene:
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return Scene(
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width=10,
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height=20,
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elements=[SceneElement(id="send", type="button", text="Send", bounds=Bounds(1, 2, 3, 4))],
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)
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def _context() -> TaskContext:
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return TaskContext(task_id="task-1", goal="send a message")
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def test_ai_planner_returns_single_planned_step_for_action_decision() -> None:
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client = FakeToolCallingClient(ToolCallDecision(tool_name="tap", arguments={"x": 1, "y": 2}))
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planner = AIPlanner(client=client)
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steps = planner.plan(goal="send a message", scene=_scene(), context=_context())
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assert steps == [
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PlannedStep(
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action="tap",
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description="AI planner: tap({'x': 1, 'y': 2})",
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args={"x": 1, "y": 2},
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)
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]
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def test_ai_planner_finish_task_success_returns_empty_plan() -> None:
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client = FakeToolCallingClient(
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ToolCallDecision(tool_name="finish_task", arguments={"success": True, "reason": "done"})
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)
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planner = AIPlanner(client=client)
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steps = planner.plan(goal="send a message", scene=_scene(), context=_context())
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assert steps == []
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def test_ai_planner_finish_task_failure_raises_task_failed_error_with_reason() -> None:
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client = FakeToolCallingClient(
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ToolCallDecision(tool_name="finish_task", arguments={"success": False, "reason": "stuck on login"})
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)
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planner = AIPlanner(client=client)
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with pytest.raises(TaskFailedError, match="stuck on login"):
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planner.plan(goal="send a message", scene=_scene(), context=_context())
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def test_ai_planner_finish_task_failure_without_reason_uses_default_message() -> None:
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client = FakeToolCallingClient(ToolCallDecision(tool_name="finish_task", arguments={"success": False}))
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planner = AIPlanner(client=client)
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with pytest.raises(TaskFailedError, match="task failed"):
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planner.plan(goal="send a message", scene=_scene(), context=_context())
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def test_ai_planner_goal_reached_is_always_false() -> None:
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client = FakeToolCallingClient(ToolCallDecision(tool_name="tap", arguments={"x": 1, "y": 2}))
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planner = AIPlanner(client=client)
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assert planner.goal_reached(goal="anything", scene=_scene(), context=_context()) is False
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def test_ai_planner_forwards_tools_screenshot_and_timeout_to_client() -> None:
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client = FakeToolCallingClient(ToolCallDecision(tool_name="tap", arguments={"x": 1, "y": 2}))
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planner = AIPlanner(client=client, config=PlannerConfig(timeout=12.5))
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planner.plan(goal="send a message", scene=_scene(), context=_context(), screenshot=b"fake-bytes")
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call = client.calls[0]
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assert call["tools"] == ALL_TOOL_SPECS
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assert call["screenshot"] == b"fake-bytes"
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assert call["timeout"] == 12.5
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assert "send a message" in call["user_prompt"]
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