Files
beaver_project/app-instance/backend/beaver/engine/loader.py
steven_li 9d6cde2d23 feat: 将项目从nano重命名为beaver并更新相关配置
- 将所有环境变量前缀从NANO_改为BEAVER_
- 更新README.md文档内容,包括项目介绍、组件说明和快速开始指南
- 修改.gitignore文件,添加auth-portal运行时路径排除规则
- 更新app-instance镜像标签从nano/app-instance改为beaver/app-instance
- 增强技能安全检查器,支持工具前缀白名单功能
- 添加技能草稿重新检查安全性API端点
- 扩展证据选择器,收集工具调用名称用于技能学习
- 改进技能合成器,基于实际调用的工具生成工具提示
- 优化路由超时处理机制,增加重试逻辑
- 更新后端架构文档,添加可视化入口和基础概念说明
- 实现在WebSocket消息中传递工具迭代次数信息
2026-05-20 18:01:06 +08:00

330 lines
14 KiB
Python

"""Centralized runtime loading for Beaver agents."""
from __future__ import annotations
import asyncio
import os
from dataclasses import dataclass, field
from pathlib import Path
from typing import Callable
from beaver.coordinator.registry import AgentRegistry
from beaver.engine.context import ContextBuilder
from beaver.engine.session import SessionManager
from beaver.foundation.config import BeaverConfig, load_config
from beaver.integrations.mcp import MCPConnectionManager
from beaver.memory.curated.store import MemoryStore
from beaver.memory.runs import RunMemoryStore
from beaver.memory.skills import SkillLearningStore
from beaver.services.memory_service import MemoryService
from beaver.skills.drafts import DraftService
from beaver.skills.learning import EvidenceSelector, SkillDraftSynthesizer, SkillLearningPipelineService, SkillLearningService
from beaver.skills.learning.safety import SkillDraftSafetyChecker
from beaver.skills.learning.eval import SkillDraftEvaluator
from beaver.skills.publisher import SkillPublisher
from beaver.skills.reviews import ReviewService
from beaver.skills.specs import SkillSpecStore
from beaver.tasks import TaskExecutionPlanner, TaskService, ValidationService
from beaver.tasks.skill_resolver import TaskSkillResolver
from beaver.skills import SkillAssembler, SkillsLoader
from beaver.tools import ObjectBackedTool, ToolAssembler, ToolExecutor, ToolRegistry
from beaver.tools.builtins import (
ClarifyTool,
CronTool,
DelegateTool,
EchoTool,
ExecuteCodeTool,
ListDirectoryTool,
MemoryTool,
PatchFileTool,
ProcessTool,
ReadFileTool,
SearchFilesTool,
SendMessageTool,
SpawnTool,
SessionSearchTool,
SkillManageTool,
SkillsListTool,
TerminalTool,
TodoTool,
WebFetchTool,
WebSearchTool,
WriteFileTool,
)
@dataclass(slots=True)
class EngineLoadResult:
"""描述当前 agent runtime 已经装好的依赖。
这里同时保留两类字段:
1. `tools/skills/memory_stores/permissions`
- 便于做状态展示、调试、轻量测试
2. `session_manager/tool_registry/...`
- 供真正的运行时主链直接使用
"""
workspace: Path
config: BeaverConfig = field(default_factory=BeaverConfig)
tools: list[str] = field(default_factory=list)
skills: list[str] = field(default_factory=list)
memory_stores: list[str] = field(default_factory=list)
permissions: list[str] = field(default_factory=list)
session_manager: SessionManager | None = None
curated_memory_store: MemoryStore | None = None
memory_service: MemoryService | None = None
run_memory_store: RunMemoryStore | None = None
skill_learning_store: SkillLearningStore | None = None
tool_registry: ToolRegistry | None = None
tool_assembler: ToolAssembler | None = None
tool_executor: ToolExecutor | None = None
context_builder: ContextBuilder | None = None
skills_loader: SkillsLoader | None = None
skill_assembler: SkillAssembler | None = None
skill_spec_store: SkillSpecStore | None = None
draft_service: DraftService | None = None
review_service: ReviewService | None = None
skill_publisher: SkillPublisher | None = None
skill_learning_service: SkillLearningService | None = None
skill_learning_pipeline: SkillLearningPipelineService | None = None
agent_registry: AgentRegistry | None = None
task_skill_resolver: TaskSkillResolver | None = None
task_service: TaskService | None = None
task_execution_planner: TaskExecutionPlanner | None = None
validation_service: ValidationService | None = None
mcp_manager: MCPConnectionManager | None = None
mcp_report: dict[str, dict] = field(default_factory=dict)
closeables: list[tuple[str, Callable[[], None]]] = field(default_factory=list, repr=False)
closed: bool = False
def register_closeable(self, name: str, close_fn: Callable[[], None]) -> None:
"""登记一个由 runtime 统一关闭的资源。"""
self.closeables.append((name, close_fn))
def close(self) -> None:
"""按后进先出顺序关闭 runtime 资源。
这一步先保持同步、最小、可组合:
1. 只管理已经明确需要关闭的资源
2. 暂不引入 async shutdown 协议
3. 为后续 Web/Gateway lifespan 留统一入口
"""
if self.closed:
return
errors: list[tuple[str, BaseException]] = []
for name, close_fn in reversed(self.closeables):
try:
close_fn()
except BaseException as exc: # pragma: no cover - defensive cleanup path
errors.append((name, exc))
self.closed = True
if errors:
parts = ", ".join(f"{name}: {exc}" for name, exc in errors)
raise RuntimeError(f"Runtime shutdown failed for {parts}")
class EngineLoader:
"""为任意 Beaver agent 装载共享 runtime 能力。
当前先做“最小可运行主链”需要的装配:
- session manager
- curated memory store
- context builder
- built-in tools
- tool executor
等主链跑稳后,再把 skills、权限、MCP、delegation 逐步加进来。
"""
def __init__(
self,
*,
workspace: str | Path | None = None,
config_path: str | Path | None = None,
config: BeaverConfig | None = None,
session_manager: SessionManager | None = None,
curated_memory_store: MemoryStore | None = None,
memory_service: MemoryService | None = None,
run_memory_store: RunMemoryStore | None = None,
skill_learning_store: SkillLearningStore | None = None,
tool_registry: ToolRegistry | None = None,
tool_assembler: ToolAssembler | None = None,
context_builder: ContextBuilder | None = None,
skills_loader: SkillsLoader | None = None,
skill_assembler: SkillAssembler | None = None,
skill_spec_store: SkillSpecStore | None = None,
draft_service: DraftService | None = None,
review_service: ReviewService | None = None,
skill_publisher: SkillPublisher | None = None,
skill_learning_service: SkillLearningService | None = None,
skill_learning_pipeline: SkillLearningPipelineService | None = None,
agent_registry: AgentRegistry | None = None,
task_skill_resolver: TaskSkillResolver | None = None,
task_service: TaskService | None = None,
task_execution_planner: TaskExecutionPlanner | None = None,
validation_service: ValidationService | None = None,
) -> None:
self.config = config or load_config(workspace=workspace, config_path=config_path)
configured_workspace = self.config.agents_defaults.workspace
env_workspace = os.getenv("BEAVER_WORKSPACE")
self.workspace = Path(workspace or configured_workspace or env_workspace or Path.cwd())
self._session_manager = session_manager
self._curated_memory_store = curated_memory_store
self._memory_service = memory_service
self._run_memory_store = run_memory_store
self._skill_learning_store = skill_learning_store
self._tool_registry = tool_registry
self._tool_assembler = tool_assembler
self._context_builder = context_builder
self._skills_loader = skills_loader
self._skill_assembler = skill_assembler
self._skill_spec_store = skill_spec_store
self._draft_service = draft_service
self._review_service = review_service
self._skill_publisher = skill_publisher
self._skill_learning_service = skill_learning_service
self._skill_learning_pipeline = skill_learning_pipeline
self._agent_registry = agent_registry
self._task_skill_resolver = task_skill_resolver
self._task_service = task_service
self._task_execution_planner = task_execution_planner
self._validation_service = validation_service
def load(self) -> EngineLoadResult:
"""装配当前主链需要的最小 runtime 对象。"""
workspace = self.workspace
session_manager = self._session_manager or SessionManager(workspace)
curated_root = workspace / "memory" / "curated"
curated_memory_store = self._curated_memory_store or MemoryStore(curated_root)
memory_service = self._memory_service or MemoryService(curated_root, store=curated_memory_store)
memory_service.initialize()
run_memory_store = self._run_memory_store or RunMemoryStore(workspace / "memory" / "runs")
skill_learning_store = self._skill_learning_store or SkillLearningStore(workspace / "memory" / "skills")
tool_registry = self._tool_registry or ToolRegistry()
skill_spec_store = self._skill_spec_store or SkillSpecStore(workspace)
skills_loader = self._skills_loader or SkillsLoader(workspace, skill_store=skill_spec_store)
if self._tool_registry is None:
# 这里先注册最小工具集,满足主链的 tool loop。
tool_registry.register_many(
[
ObjectBackedTool(EchoTool()),
ObjectBackedTool(MemoryTool(store=memory_service.get_store())),
ObjectBackedTool(SessionSearchTool(db=session_manager)),
ObjectBackedTool(ListDirectoryTool()),
ObjectBackedTool(ReadFileTool()),
ObjectBackedTool(SearchFilesTool()),
ObjectBackedTool(WriteFileTool()),
ObjectBackedTool(PatchFileTool()),
ObjectBackedTool(WebFetchTool()),
ObjectBackedTool(WebSearchTool()),
ObjectBackedTool(TerminalTool()),
ObjectBackedTool(ProcessTool()),
ObjectBackedTool(ExecuteCodeTool()),
ObjectBackedTool(TodoTool()),
ObjectBackedTool(ClarifyTool()),
ObjectBackedTool(SendMessageTool()),
ObjectBackedTool(DelegateTool()),
ObjectBackedTool(SpawnTool()),
SkillsListTool(),
SkillManageTool(),
CronTool(),
]
)
context_builder = self._context_builder or ContextBuilder()
tool_assembler = self._tool_assembler or ToolAssembler()
tool_executor = ToolExecutor(tool_registry)
skill_assembler = self._skill_assembler or SkillAssembler(skills_loader)
draft_service = self._draft_service or DraftService(skill_spec_store)
review_service = self._review_service or ReviewService(skill_spec_store)
skill_publisher = self._skill_publisher or SkillPublisher(skill_spec_store)
evidence_selector = EvidenceSelector(run_memory_store, session_manager=session_manager)
skill_learning_service = self._skill_learning_service or SkillLearningService(
run_store=run_memory_store,
learning_store=skill_learning_store,
draft_service=draft_service,
evidence_selector=evidence_selector,
synthesizer=SkillDraftSynthesizer(),
)
skill_learning_pipeline = self._skill_learning_pipeline or SkillLearningPipelineService(
learning_store=skill_learning_store,
learning_service=skill_learning_service,
draft_service=draft_service,
review_service=review_service,
publisher=skill_publisher,
safety_checker=SkillDraftSafetyChecker(
allowed_tool_names={spec.name for spec in tool_registry.list_specs()},
allowed_tool_prefixes={
f"mcp_{server_id}_"
for server_id in self.config.tools.mcp_servers
if str(server_id).strip()
},
),
evaluator=SkillDraftEvaluator(run_memory_store),
)
agent_registry = self._agent_registry or AgentRegistry(workspace)
task_skill_resolver = self._task_skill_resolver or TaskSkillResolver(
skills_loader=skills_loader,
draft_service=draft_service,
)
task_service = self._task_service or TaskService(workspace / "tasks")
task_execution_planner = self._task_execution_planner or TaskExecutionPlanner(task_skill_resolver=task_skill_resolver)
validation_service = self._validation_service or ValidationService()
mcp_manager = MCPConnectionManager(
self.config.tools.mcp_servers,
authz_config=self.config.authz,
backend_identity=self.config.backend_identity,
)
result = EngineLoadResult(
workspace=workspace,
config=self.config,
tools=[spec.name for spec in tool_registry.list_specs()],
skills=[record.name for record in skills_loader.list_skills(filter_unavailable=False)],
memory_stores=["curated"],
permissions=[],
session_manager=session_manager,
curated_memory_store=memory_service.get_store(),
memory_service=memory_service,
run_memory_store=run_memory_store,
skill_learning_store=skill_learning_store,
tool_registry=tool_registry,
tool_assembler=tool_assembler,
tool_executor=tool_executor,
context_builder=context_builder,
skills_loader=skills_loader,
skill_assembler=skill_assembler,
skill_spec_store=skill_spec_store,
draft_service=draft_service,
review_service=review_service,
skill_publisher=skill_publisher,
skill_learning_service=skill_learning_service,
skill_learning_pipeline=skill_learning_pipeline,
agent_registry=agent_registry,
task_skill_resolver=task_skill_resolver,
task_service=task_service,
task_execution_planner=task_execution_planner,
validation_service=validation_service,
mcp_manager=mcp_manager,
)
if self._session_manager is None:
result.register_closeable("session_manager", session_manager.close)
result.register_closeable("mcp_manager", lambda: _close_mcp_manager(mcp_manager))
return result
def _close_mcp_manager(manager: MCPConnectionManager) -> None:
try:
loop = asyncio.get_running_loop()
except RuntimeError:
asyncio.run(manager.close())
return
loop.create_task(manager.close())