414 lines
16 KiB
Python
414 lines
16 KiB
Python
import json
|
|
from dataclasses import dataclass
|
|
from typing import Any
|
|
|
|
from duck_core.approvals.service import ApprovalService
|
|
from duck_core.context_builder import ContextBuilder
|
|
from duck_core.events.store import EventStore
|
|
from duck_core.model_client import ModelClient
|
|
from duck_core.tasks.store import TaskStore
|
|
from duck_core.tools.gateway import ToolGateway
|
|
from duck_core.tools.base import ToolResult
|
|
|
|
|
|
@dataclass
|
|
class ChatResult:
|
|
task_id: str
|
|
status: str
|
|
final_response: str
|
|
reasoning_content: str | None = None
|
|
|
|
|
|
class RuntimeLoop:
|
|
def __init__(
|
|
self,
|
|
task_store: TaskStore,
|
|
event_store: EventStore,
|
|
model_client: ModelClient | None = None,
|
|
context_builder: ContextBuilder | None = None,
|
|
approval_service: ApprovalService | None = None,
|
|
max_tool_iterations: int = 4,
|
|
):
|
|
self.task_store = task_store
|
|
self.event_store = event_store
|
|
self.model_client = model_client or ModelClient()
|
|
self.context_builder = context_builder or ContextBuilder()
|
|
self.approval_service = approval_service
|
|
self.max_tool_iterations = max_tool_iterations
|
|
|
|
async def run_chat(
|
|
self, message: str, workspace: str | None = None, debug: bool = False
|
|
) -> ChatResult:
|
|
task = await self.task_store.create_task(message, workspace, debug)
|
|
await self.event_store.append(
|
|
task.task_id,
|
|
"task_created",
|
|
{"message": message, "workspace": workspace, "debug": debug},
|
|
)
|
|
try:
|
|
messages = self.context_builder.build_basic_messages(task)
|
|
tool_observations = await self._run_action_loop(task.task_id, messages, workspace)
|
|
if any(observation.get("requires_approval") for observation in tool_observations):
|
|
await self.task_store.waiting_for_approval(task.task_id)
|
|
await self.event_store.append(
|
|
task.task_id,
|
|
"task_waiting_for_approval",
|
|
{"observations": tool_observations},
|
|
)
|
|
return ChatResult(
|
|
task_id=task.task_id,
|
|
status="waiting_for_approval",
|
|
final_response="Waiting for approval.",
|
|
reasoning_content=None,
|
|
)
|
|
if tool_observations:
|
|
messages = [
|
|
*messages,
|
|
{
|
|
"role": "user",
|
|
"content": "tool_observations:\n"
|
|
+ json.dumps(tool_observations, ensure_ascii=False, indent=2),
|
|
},
|
|
]
|
|
await self.event_store.append(
|
|
task.task_id, "model_call_started", {"role": "thinker"}
|
|
)
|
|
response = await self.model_client.chat("thinker", messages)
|
|
await self.event_store.append(
|
|
task.task_id,
|
|
"cognition_response",
|
|
{
|
|
"role": response.role,
|
|
"content": response.content,
|
|
"reasoning_content": response.reasoning_content,
|
|
},
|
|
)
|
|
await self.event_store.append(
|
|
task.task_id,
|
|
"model_call_finished",
|
|
{
|
|
"role": response.role,
|
|
"model": response.model,
|
|
"latency_ms": response.latency_ms,
|
|
"prompt_tokens": response.prompt_tokens,
|
|
"completion_tokens": response.completion_tokens,
|
|
"total_tokens": response.total_tokens,
|
|
},
|
|
)
|
|
await self.task_store.complete_task(task.task_id, response.content)
|
|
await self.event_store.append(
|
|
task.task_id,
|
|
"task_completed",
|
|
{
|
|
"final_response": response.content,
|
|
"reasoning_content": response.reasoning_content,
|
|
},
|
|
)
|
|
return ChatResult(
|
|
task_id=task.task_id,
|
|
status="completed",
|
|
final_response=response.content,
|
|
reasoning_content=response.reasoning_content,
|
|
)
|
|
except Exception as exc:
|
|
await self.task_store.fail_task(task.task_id, str(exc))
|
|
await self.event_store.append(
|
|
task.task_id, "task_failed", {"error": str(exc)}
|
|
)
|
|
return ChatResult(
|
|
task_id=task.task_id,
|
|
status="failed",
|
|
final_response=str(exc),
|
|
reasoning_content=None,
|
|
)
|
|
|
|
async def continue_after_approval(self, task_id: str, approval_id: str) -> ChatResult:
|
|
if self.approval_service is None:
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="failed",
|
|
final_response="Approval service is not configured.",
|
|
reasoning_content=None,
|
|
)
|
|
|
|
task = await self.task_store.get_task(task_id)
|
|
approval = await self.approval_service.get(approval_id)
|
|
if task is None:
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="failed",
|
|
final_response="Task not found.",
|
|
reasoning_content=None,
|
|
)
|
|
if approval is None or approval.task_id != task_id:
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="failed",
|
|
final_response="Approval not found for task.",
|
|
reasoning_content=None,
|
|
)
|
|
if approval.decision is None:
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="waiting_for_approval",
|
|
final_response="Waiting for approval.",
|
|
reasoning_content=None,
|
|
)
|
|
|
|
await self.task_store.update_status(task_id, "running")
|
|
await self.event_store.append(
|
|
task_id,
|
|
"task_continued",
|
|
{"approval_id": approval_id, "decision": approval.decision},
|
|
)
|
|
try:
|
|
tool_observation = await self._run_approved_or_denied_action(
|
|
task_id, approval.normalized_action, approval.decision
|
|
)
|
|
messages = self.context_builder.build_basic_messages(task)
|
|
tool_observations = [tool_observation]
|
|
if approval.decision != "deny":
|
|
tool_observations = await self._run_action_loop(
|
|
task_id,
|
|
messages,
|
|
task.workspace,
|
|
initial_observations=tool_observations,
|
|
)
|
|
if any(observation.get("requires_approval") for observation in tool_observations):
|
|
await self.task_store.waiting_for_approval(task_id)
|
|
await self.event_store.append(
|
|
task_id,
|
|
"task_waiting_for_approval",
|
|
{"observations": tool_observations},
|
|
)
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="waiting_for_approval",
|
|
final_response="Waiting for approval.",
|
|
reasoning_content=None,
|
|
)
|
|
messages = [
|
|
*messages,
|
|
{
|
|
"role": "user",
|
|
"content": "tool_observations:\n"
|
|
+ json.dumps(tool_observations, ensure_ascii=False, indent=2),
|
|
},
|
|
]
|
|
await self.event_store.append(task_id, "model_call_started", {"role": "thinker"})
|
|
response = await self.model_client.chat("thinker", messages)
|
|
await self.event_store.append(
|
|
task_id,
|
|
"cognition_response",
|
|
{
|
|
"role": response.role,
|
|
"content": response.content,
|
|
"reasoning_content": response.reasoning_content,
|
|
},
|
|
)
|
|
await self.event_store.append(
|
|
task_id,
|
|
"model_call_finished",
|
|
{
|
|
"role": response.role,
|
|
"model": response.model,
|
|
"latency_ms": response.latency_ms,
|
|
"prompt_tokens": response.prompt_tokens,
|
|
"completion_tokens": response.completion_tokens,
|
|
"total_tokens": response.total_tokens,
|
|
},
|
|
)
|
|
await self.task_store.complete_task(task_id, response.content)
|
|
await self.event_store.append(
|
|
task_id,
|
|
"task_completed",
|
|
{
|
|
"final_response": response.content,
|
|
"reasoning_content": response.reasoning_content,
|
|
},
|
|
)
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="completed",
|
|
final_response=response.content,
|
|
reasoning_content=response.reasoning_content,
|
|
)
|
|
except Exception as exc:
|
|
await self.task_store.fail_task(task_id, str(exc))
|
|
await self.event_store.append(task_id, "task_failed", {"error": str(exc)})
|
|
return ChatResult(
|
|
task_id=task_id,
|
|
status="failed",
|
|
final_response=str(exc),
|
|
reasoning_content=None,
|
|
)
|
|
|
|
async def _run_approved_or_denied_action(
|
|
self, task_id: str, action: dict[str, Any], decision: str
|
|
) -> dict[str, Any]:
|
|
tool_name = str(action.get("tool", ""))
|
|
index = await self._approval_action_index(task_id, action)
|
|
if decision == "deny":
|
|
result = ToolResult(
|
|
ok=False,
|
|
error="Tool action denied by user.",
|
|
metadata={"decision": "deny"},
|
|
)
|
|
else:
|
|
gateway = ToolGateway.default((await self.task_store.get_task(task_id)).workspace or ".")
|
|
result = await gateway.run_action(action, approved=True)
|
|
|
|
result_payload = result.model_dump()
|
|
await self.event_store.append(
|
|
task_id,
|
|
"tool_call_finished",
|
|
{"index": index, "tool": tool_name, "result": result_payload},
|
|
)
|
|
return {
|
|
"index": index,
|
|
"tool": tool_name,
|
|
"reason": action.get("reason"),
|
|
"decision": decision,
|
|
"result": result_payload,
|
|
}
|
|
|
|
async def _approval_action_index(self, task_id: str, action: dict[str, Any]) -> int:
|
|
events = await self.event_store.list_events(task_id)
|
|
for event in reversed(events):
|
|
if (
|
|
event.event_type == "tool_approval_requested"
|
|
and event.payload.get("action") == action
|
|
):
|
|
return int(event.payload.get("index") or 1)
|
|
return 1
|
|
|
|
async def _run_action_tools(
|
|
self,
|
|
task_id: str,
|
|
messages: list[dict[str, str]],
|
|
workspace: str | None,
|
|
start_index: int = 1,
|
|
) -> list[dict[str, Any]]:
|
|
try:
|
|
await self.event_store.append(task_id, "model_call_started", {"role": "action"})
|
|
response = await self.model_client.chat("action", messages)
|
|
directive = json.loads(response.content)
|
|
except Exception as exc:
|
|
await self.event_store.append(
|
|
task_id,
|
|
"action_directive_failed",
|
|
{"error": str(exc)},
|
|
)
|
|
return []
|
|
|
|
await self.event_store.append(task_id, "action_directive", directive)
|
|
actions = directive.get("actions") or []
|
|
if not isinstance(actions, list) or not actions:
|
|
return []
|
|
|
|
gateway = ToolGateway.default(workspace or ".")
|
|
observations: list[dict[str, Any]] = []
|
|
for index, action in enumerate(actions, start=start_index):
|
|
if not isinstance(action, dict):
|
|
observations.append(
|
|
{"index": index, "ok": False, "error": "Action must be an object"}
|
|
)
|
|
continue
|
|
tool_name = str(action.get("tool", ""))
|
|
await self.event_store.append(
|
|
task_id,
|
|
"tool_call_started",
|
|
{"index": index, "tool": tool_name, "args": action.get("args") or {}},
|
|
)
|
|
approved_forever = (
|
|
self.approval_service is not None
|
|
and await self.approval_service.is_allowed_forever(action)
|
|
)
|
|
result = await gateway.run_action(action, approved=approved_forever)
|
|
result_payload = result.model_dump()
|
|
if result.metadata.get("requires_approval"):
|
|
approval = None
|
|
if self.approval_service is not None:
|
|
approval = await self.approval_service.create_pending(task_id, action)
|
|
await self.event_store.append(
|
|
task_id,
|
|
"tool_approval_requested",
|
|
{
|
|
"index": index,
|
|
"tool": tool_name,
|
|
"action": action,
|
|
"approval_id": approval.approval_id if approval else None,
|
|
"reason": result.error,
|
|
},
|
|
)
|
|
observations.append(
|
|
{
|
|
"index": index,
|
|
"tool": tool_name,
|
|
"reason": action.get("reason"),
|
|
"requires_approval": True,
|
|
"approval_id": approval.approval_id if approval else None,
|
|
"result": result_payload,
|
|
}
|
|
)
|
|
break
|
|
await self.event_store.append(
|
|
task_id,
|
|
"tool_call_finished",
|
|
{"index": index, "tool": tool_name, "result": result_payload},
|
|
)
|
|
observations.append(
|
|
{
|
|
"index": index,
|
|
"tool": tool_name,
|
|
"reason": action.get("reason"),
|
|
"result": result_payload,
|
|
}
|
|
)
|
|
return observations
|
|
|
|
async def _run_action_loop(
|
|
self,
|
|
task_id: str,
|
|
messages: list[dict[str, str]],
|
|
workspace: str | None,
|
|
initial_observations: list[dict[str, Any]] | None = None,
|
|
) -> list[dict[str, Any]]:
|
|
all_observations = list(initial_observations or [])
|
|
current_messages = messages
|
|
if all_observations:
|
|
current_messages = [
|
|
*messages,
|
|
{
|
|
"role": "user",
|
|
"content": "tool_observations:\n"
|
|
+ json.dumps(all_observations, ensure_ascii=False, indent=2),
|
|
},
|
|
]
|
|
for _ in range(self.max_tool_iterations):
|
|
observations = await self._run_action_tools(
|
|
task_id,
|
|
current_messages,
|
|
workspace,
|
|
start_index=len(all_observations) + 1,
|
|
)
|
|
if not observations:
|
|
return all_observations
|
|
all_observations.extend(observations)
|
|
if any(observation.get("requires_approval") for observation in observations):
|
|
return all_observations
|
|
current_messages = [
|
|
*messages,
|
|
{
|
|
"role": "user",
|
|
"content": "tool_observations:\n"
|
|
+ json.dumps(all_observations, ensure_ascii=False, indent=2),
|
|
},
|
|
]
|
|
await self.event_store.append(
|
|
task_id,
|
|
"tool_iteration_limit_reached",
|
|
{"max_tool_iterations": self.max_tool_iterations},
|
|
)
|
|
return all_observations
|