refactor: Fix code quality issues identified in analysis

1. Rename factory.py's EvoAgent data class to AgentConfig
   - Avoids naming conflict with base/evo_agent.py's EvoAgent

2. Export pipeline_runner functions in backend/core/__init__.py
   - Add create_agents, create_long_term_memory, stop_gateway

3. Consolidate PromptLoader to singleton pattern
   - Add get_prompt_loader() singleton function
   - Update all usages to use singleton

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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   "backgroundTasks": [],
-  "sessionStartTimestamp": "2026-03-12T14:19:33.615Z",
+  "sessionStartTimestamp": "2026-03-19T16:36:42.224Z",
-  "sessionId": "73b0d597-0141-4873-9d0e-2b60e4e0635e"
+  "sessionId": "ef02339a-1eec-4c7a-95ac-c8cfa0b5067d"
 }

.omc/state/hud-stdin-cache.json

@@ -1 +1 @@
-{"session_id":"73b0d597-0141-4873-9d0e-2b60e4e0635e","transcript_path":"/Users/cillin/.claude/projects/-Users-cillin-workspeace-agentscope-samples-evotraders/73b0d597-0141-4873-9d0e-2b60e4e0635e.jsonl","cwd":"/Users/cillin/workspeace/agentscope-samples/evotraders","model":{"id":"kimi-for-coding","display_name":"kimi-for-coding"},"workspace":{"current_dir":"/Users/cillin/workspeace/agentscope-samples/evotraders","project_dir":"/Users/cillin/workspeace/agentscope-samples/evotraders","added_dirs":["/Users/cillin/workspeace/agentscope-samples/EvoTraders","/Users/cillin/workspeace/agentscope-samples/evotraders"]},"version":"2.1.63","output_style":{"name":"default"},"cost":{"total_cost_usd":6.822239999999999,"total_duration_ms":42679588,"total_api_duration_ms":1223637,"total_lines_added":275,"total_lines_removed":240},"context_window":{"total_input_tokens":654274,"total_output_tokens":27014,"context_window_size":200000,"current_usage":{"input_tokens":48465,"output_tokens":0,"cache_creation_input_tokens":0,"cache_read_input_tokens":0},"used_percentage":24,"remaining_percentage":76},"exceeds_200k_tokens":false}
+{"session_id":"ef02339a-1eec-4c7a-95ac-c8cfa0b5067d","transcript_path":"/Users/cillin/.claude/projects/-Users-cillin-workspeace-evotraders/ef02339a-1eec-4c7a-95ac-c8cfa0b5067d.jsonl","cwd":"/Users/cillin/workspeace/evotraders","model":{"id":"MiniMax-M2.7-highspeed","display_name":"MiniMax-M2.7-highspeed"},"workspace":{"current_dir":"/Users/cillin/workspeace/evotraders","project_dir":"/Users/cillin/workspeace/evotraders","added_dirs":[]},"version":"2.1.78","output_style":{"name":"default"},"cost":{"total_cost_usd":17.458779250000003,"total_duration_ms":1866224,"total_api_duration_ms":1188013,"total_lines_added":257,"total_lines_removed":290},"context_window":{"total_input_tokens":195204,"total_output_tokens":48917,"context_window_size":200000,"current_usage":{"input_tokens":481,"output_tokens":0,"cache_creation_input_tokens":149,"cache_read_input_tokens":163286},"used_percentage":82,"remaining_percentage":18},"exceeds_200k_tokens":false}

.omc/state/idle-notif-cooldown.json

@@ -1,3 +1,3 @@
 {
-  "lastSentAt": "2026-03-12T20:31:37.362Z"
+  "lastSentAt": "2026-03-19T17:02:32.170Z"
 }

.omc/state/subagent-tracking.json

@@ -1,26 +1,17 @@
 {
   "agents": [
     {
-      "agent_id": "a4090d26a45ac828d",
+      "agent_id": "a8305a91e192b2196",
-      "agent_type": "oh-my-claudecode:executor",
+      "agent_type": "Explore",
-      "started_at": "2026-03-12T10:02:38.238Z",
+      "started_at": "2026-03-19T17:00:33.284Z",
       "parent_mode": "none",
       "status": "completed",
-      "completed_at": "2026-03-12T10:10:59.192Z",
+      "completed_at": "2026-03-19T17:02:19.439Z",
-      "duration_ms": 500954
+      "duration_ms": 106155
-    },
-    {
-      "agent_id": "af87583ef76a4df30",
-      "agent_type": "oh-my-claudecode:executor",
-      "started_at": "2026-03-12T10:40:04.409Z",
-      "parent_mode": "none",
-      "status": "completed",
-      "completed_at": "2026-03-12T10:41:17.387Z",
-      "duration_ms": 72978
     }
   ],
-  "total_spawned": 2,
+  "total_spawned": 1,
-  "total_completed": 2,
+  "total_completed": 1,
   "total_failed": 0,
-  "last_updated": "2026-03-12T10:41:17.490Z"
+  "last_updated": "2026-03-19T17:02:39.175Z"
 }

backend/agents/factory.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-"""Agent Factory - Dynamic creation and management of EvoAgents."""
+"""Agent Factory - Dynamic creation and management of AgentConfigs."""
 
 import logging
 import shutil
@@ -37,8 +37,8 @@ class RoleConfig:
             self.constraints = []
 
 
-class EvoAgent:
+class AgentConfig:
-    """Represents a configured agent instance."""
+    """Represents a configured agent instance (data class)."""
 
     def __init__(
         self,
@@ -185,7 +185,7 @@ class AgentFactory:
         model_config: Optional[ModelConfig] = None,
         role_config: Optional[RoleConfig] = None,
         clone_from: Optional[str] = None,
-    ) -> EvoAgent:
+    ) -> AgentConfig:
         """Create a new agent.
 
         Args:
@@ -197,7 +197,7 @@ class AgentFactory:
             clone_from: Path to existing agent to clone from (optional)
 
         Returns:
-            EvoAgent instance
+            AgentConfig instance
 
         Raises:
             ValueError: If agent already exists or workspace doesn't exist
@@ -234,7 +234,7 @@ class AgentFactory:
         config_path = agent_dir / "agent.yaml"
         self._write_agent_yaml(config_path, agent_id, agent_type, model_config)
 
-        return EvoAgent(
+        return AgentConfig(
             agent_id=agent_id,
             agent_type=agent_type,
             workspace_id=workspace_id,
@@ -267,7 +267,7 @@ class AgentFactory:
         new_agent_id: str,
         target_workspace_id: Optional[str] = None,
         model_config: Optional[ModelConfig] = None,
-    ) -> EvoAgent:
+    ) -> AgentConfig:
         """Clone an existing agent.
 
         Args:
@@ -278,7 +278,7 @@ class AgentFactory:
             model_config: Optional new model configuration
 
         Returns:
-            EvoAgent instance for the cloned agent
+            AgentConfig instance for the cloned agent
         """
         target_workspace_id = target_workspace_id or source_workspace_id
         source_dir = self.workspaces_root / source_workspace_id / "agents" / source_agent_id

backend/agents/prompt_factory.py

@@ -6,10 +6,10 @@ from typing import Any, Optional
 
 from .agent_workspace import load_agent_workspace_config
 from backend.config.bootstrap_config import get_bootstrap_config_for_run
-from .prompt_loader import PromptLoader
+from .prompt_loader import get_prompt_loader
 from .skills_manager import SkillsManager
 
-_prompt_loader = PromptLoader()
+_prompt_loader = get_prompt_loader()
 
 
 def _read_file_if_exists(path: Path) -> str:

backend/agents/prompt_loader.py

@@ -10,6 +10,17 @@ from typing import Any, Dict, Optional
 
 import yaml
 
+# Singleton instance
+_prompt_loader_instance: Optional["PromptLoader"] = None
+
+
+def get_prompt_loader() -> "PromptLoader":
+    """Get the singleton PromptLoader instance."""
+    global _prompt_loader_instance
+    if _prompt_loader_instance is None:
+        _prompt_loader_instance = PromptLoader()
+    return _prompt_loader_instance
+
 
 class PromptLoader:
     """Unified Prompt loader"""

backend/cli.py

@@ -29,7 +29,7 @@ from rich.table import Table
 from dotenv import load_dotenv
 
 from backend.agents.agent_workspace import load_agent_workspace_config
-from backend.agents.prompt_loader import PromptLoader
+from backend.agents.prompt_loader import get_prompt_loader
 from backend.agents.skills_manager import SkillsManager
 from backend.agents.team_pipeline_config import (
     ensure_team_pipeline_config,
@@ -55,7 +55,7 @@ team_app = typer.Typer(help="Inspect and manage run-scoped team pipeline config.
 app.add_typer(team_app, name="team")
 
 console = Console()
-_prompt_loader = PromptLoader()
+_prompt_loader = get_prompt_loader()
 load_dotenv()
 
 

backend/core/__init__.py

@@ -3,5 +3,12 @@
 
 from .pipeline import TradingPipeline
 from .state_sync import StateSync
+from .pipeline_runner import create_agents, create_long_term_memory, stop_gateway
 
-__all__ = ["TradingPipeline", "StateSync"]
+__all__ = [
+    "TradingPipeline",
+    "StateSync",
+    "create_agents",
+    "create_long_term_memory",
+    "stop_gateway",
+]

backend/core/pipeline.py

@@ -30,7 +30,7 @@ from backend.agents.team_pipeline_config import (
 from backend.agents import AnalystAgent
 from backend.agents.toolkit_factory import create_agent_toolkit
 from backend.agents.workspace_manager import WorkspaceManager
-from backend.agents.prompt_loader import PromptLoader
+from backend.agents.prompt_loader import get_prompt_loader
 from backend.llm.models import get_agent_formatter, get_agent_model
 from backend.config.constants import ANALYST_TYPES
 
@@ -1623,7 +1623,7 @@ class TradingPipeline:
 
         config_name = getattr(self.pm, "config", {}).get("config_name", "default")
         project_root = Path(__file__).resolve().parents[2]
-        personas = PromptLoader().load_yaml_config("analyst", "personas")
+        personas = get_prompt_loader().load_yaml_config("analyst", "personas")
         persona = personas.get(analyst_type, {})
         WorkspaceManager(project_root=project_root).ensure_agent_assets(
             config_name=config_name,

backend/core/pipeline_runner.py

@@ -17,7 +17,7 @@ from typing import Any, Dict, Optional, Callable
 from backend.agents import AnalystAgent, PMAgent, RiskAgent
 from backend.agents.skills_manager import SkillsManager
 from backend.agents.toolkit_factory import create_agent_toolkit, load_agent_profiles
-from backend.agents.prompt_loader import PromptLoader
+from backend.agents.prompt_loader import get_prompt_loader
 from backend.agents.workspace_manager import WorkspaceManager
 from backend.config.constants import ANALYST_TYPES
 from backend.core.pipeline import TradingPipeline
@@ -36,7 +36,7 @@ from backend.services.storage import StorageService
 from backend.services.gateway import Gateway
 from backend.utils.settlement import SettlementCoordinator
 
-_prompt_loader = PromptLoader()
+_prompt_loader = get_prompt_loader()
 
 # Global gateway reference for cleanup
 _gateway_instance: Optional[Gateway] = None

backend/gateway_server.py

@@ -22,7 +22,7 @@ load_dotenv()
 from backend.agents import AnalystAgent, PMAgent, RiskAgent
 from backend.agents.skills_manager import SkillsManager
 from backend.agents.toolkit_factory import create_agent_toolkit, load_agent_profiles
-from backend.agents.prompt_loader import PromptLoader
+from backend.agents.prompt_loader import get_prompt_loader
 from backend.agents.workspace_manager import WorkspaceManager
 from backend.config.constants import ANALYST_TYPES
 from backend.core.pipeline import TradingPipeline
@@ -40,7 +40,7 @@ from backend.services.storage import StorageService
 from backend.utils.settlement import SettlementCoordinator
 
 logger = logging.getLogger(__name__)
-_prompt_loader = PromptLoader()
+_prompt_loader = get_prompt_loader()
 
 
 async def run_gateway(

backend/main.py

@@ -16,7 +16,7 @@ from dotenv import load_dotenv
 from backend.agents import AnalystAgent, PMAgent, RiskAgent
 from backend.agents.skills_manager import SkillsManager
 from backend.agents.toolkit_factory import create_agent_toolkit, load_agent_profiles
-from backend.agents.prompt_loader import PromptLoader
+from backend.agents.prompt_loader import get_prompt_loader
 from backend.agents.workspace_manager import WorkspaceManager
 from backend.config.bootstrap_config import resolve_runtime_config
 from backend.config.constants import ANALYST_TYPES
@@ -38,7 +38,7 @@ load_dotenv()
 logger = logging.getLogger(__name__)
 loguru.logger.disable("flowllm")
 loguru.logger.disable("reme_ai")
-_prompt_loader = PromptLoader()
+_prompt_loader = get_prompt_loader()
 
 
 def _get_run_dir(config_name: str) -> Path: