docs: add TrulyMEM → WaterFlow migration design document

- TypeScript reimplementation of graph memory system
- Include: GraphDatabase, MemoryService, GraphMemoryTool
- Directory structure and implementation patterns
- Test plan with 50+ test cases
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# TrulyMEM → WaterFlow 迁移设计文档
**版本**: 1.0
**日期**: 2026-04-15
**目标**: 用 TypeScript 完全重写 TrulyMEM 的图记忆能力,集成到 WaterFlow
---
## 一、迁移策略
### 1.1 核心原则
- **完全重写**: 不保留 Python 代码,用 TypeScript 实现
- **架构一致**: 遵循 WaterFlow 的架构风格和设计模式
- **原生集成**: 作为 WaterFlow 的内置模块,而非外部依赖
### 1.2 迁移范围
| TrulyMEM (Python) | WaterFlow (TypeScript) | 说明 |
|-------------------|------------------------|------|
| `EmbeddedGraphDB` | `GraphDatabase` | SQLite 图数据库重写 |
| `GraphMemoryClient` | `MemoryService` | 记忆服务 |
| 12 个记忆工具 | `GraphMemoryTool` | WaterFlow Tool 接口 |
| System Prompt | 提示词模板 | 提示词管理 |
| TUI | ❌ 不迁移 | WaterFlow 无 TUI |
---
## 二、架构设计
### 2.1 整体架构
```
┌─────────────────────────────────────────────────────────────────────┐
│ WaterFlow Core │
│ ┌─────────────┐ ┌──────────────┐ ┌────────────────────────┐ │
│ │ Agent / │───>│ Query │───>│ ToolExecutor │ │
│ │ Workflow │ │ Engine │ │ │ │
│ └─────────────┘ └──────────────┘ └───────────┬────────────┘ │
│ │ │
│ ┌──────────────────────────────┘ │
│ ▼ │
│ ┌─────────────────────────────────────────────────────────────────┐ │
│ │ GraphMemory Module (NEW) │ │
│ │ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ │
│ │ │ GraphMemoryTool │ │ GraphDatabase │ │ MemoryService │ │ │
│ │ │ (Tool Interface)│ │ (SQLite Graph) │ │ (LLM Integration)│ │ │
│ │ └────────┬────────┘ └────────┬────────┘ └────────┬────────┘ │ │
│ │ │ │ │ │ │
│ │ └────────────────────┼────────────────────┘ │ │
│ │ ▼ │ │
│ │ ┌─────────────────────┐ │ │
│ │ │ GraphMemoryStore │ │ │
│ │ │ (In-Memory Cache) │ │ │
│ │ └─────────────────────┘ │ │
│ └─────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────┘
```
### 2.2 模块职责
| 模块 | 职责 | 位置 |
|------|------|------|
| `GraphMemoryTool` | WaterFlow Tool 接口,暴露记忆能力 | `runtime/core/tools/builtin/graph_memory/` |
| `GraphDatabase` | SQLite 图数据库实现 | `runtime/core/graph_memory/database/` |
| `MemoryService` | 封装业务逻辑 | `runtime/core/graph_memory/service/` |
| `GraphMemoryStore` | 内存缓存,加速查询 | `runtime/core/graph_memory/store/` |
| `SystemPrompt` | 提示词模板管理 | `runtime/core/graph_memory/prompts/` |
---
## 三、目录结构
### 3.1 新增目录
```
WaterFlow/ts/src/
├── runtime/core/
│ ├── graph_memory/ # 新增: 图记忆模块
│ │ ├── index.ts # 模块导出
│ │ ├── types.ts # 类型定义
│ │ ├── database/ # 图数据库实现
│ │ │ ├── index.ts
│ │ │ ├── graph_database.ts # 主类
│ │ │ ├── entity_store.ts # 实体存储
│ │ │ └── relation_store.ts # 关系存储
│ │ ├── service/ # 服务层
│ │ │ ├── index.ts
│ │ │ ├── memory_service.ts # 记忆服务
│ │ │ ├── recall_service.ts # 检索服务
│ │ │ └── task_service.ts # 任务服务
│ │ ├── store/ # 缓存层
│ │ │ ├── index.ts
│ │ │ └── memory_cache.ts
│ │ └── prompts/ # 提示词
│ │ └── system_prompt.ts
│ │
│ └── tools/builtin/
│ └── graph_memory/ # GraphMemory Tool
│ ├── index.ts
│ ├── graph_memory_tool.ts # Tool 实现
│ ├── types.ts # Tool 参数类型
│ └── tool_registry.ts # 自动注册
```
### 3.2 修改文件
| 文件 | 修改内容 |
|------|----------|
| `runtime/core/tools/builtin/index.ts` | 注册 GraphMemoryTool |
| `shared/types/index.ts` | 导出图记忆类型 |
---
## 四、核心类型定义
### 4.1 图数据库类型
```typescript
// src/runtime/core/graph_memory/types.ts
export interface Entity {
id: string;
name: string;
type: string;
mentionCount: number;
createdAt: Date;
updatedAt: Date;
}
export interface Relation {
id: string;
sourceId: string;
targetId: string;
relationType: string;
confidence: number;
status: RelationStatus;
sessionId: string;
turnId: number;
createdAt: Date;
updatedAt: Date;
dateBucket: string;
}
export type RelationStatus = 'active' | 'deleted' | 'archived' | 'superseded';
export interface Triplet {
subject: string;
relation: string;
object: string;
confidence?: number;
}
export interface RecallParams {
queryIntent: string;
seedEntities?: string[];
depth?: number;
timeRange?: { days: number };
sessionFilter?: string;
}
export interface CommitParams {
triplets: Triplet[];
entityTypes?: Record<string, string>;
temporalTag?: string;
sessionId?: string;
turnId?: number;
}
export interface PurgeParams {
criteria: {
subject?: string;
target?: string;
relation?: string;
sessionId?: string;
};
mode?: 'soft' | 'hard' | 'supersede';
newRelation?: { relation: string; target: string };
}
export type TaskState = '进行中' | '已完成' | '已暂停' | '已取消';
export interface MemoryStats {
entityCount: number;
relationCount: number;
sessionId?: string;
}
```
### 4.2 Tool 参数类型
```typescript
// src/runtime/core/tools/builtin/graph_memory/types.ts
export type GraphMemoryAction =
| 'recall' | 'commit' | 'purge' | 'introspect' | 'archive' | 'cleanup'
| 'persona_update' | 'persona_clear'
| 'task_create' | 'task_set_state' | 'task_delete' | 'task_link_info';
export interface GraphMemoryToolInput {
action: GraphMemoryAction;
params: Record<string, unknown>;
}
```
---
## 五、核心实现
### 5.1 GraphDatabase 实现
```typescript
// src/runtime/core/graph_memory/database/graph_database.ts
export class GraphDatabase {
private db: Database;
constructor(dbPath: string) {
this.db = new Database(dbPath);
this.initialize();
}
private initialize(): void {
this.db.exec(`
CREATE TABLE IF NOT EXISTS entities (
id TEXT PRIMARY KEY,
name TEXT UNIQUE NOT NULL,
type TEXT,
mention_count INTEGER DEFAULT 1,
created_at TEXT DEFAULT CURRENT_TIMESTAMP,
updated_at TEXT DEFAULT CURRENT_TIMESTAMP
)
`);
this.db.exec(`
CREATE TABLE IF NOT EXISTS relations (
id TEXT PRIMARY KEY,
source_id TEXT NOT NULL,
target_id TEXT NOT NULL,
relation_type TEXT NOT NULL,
confidence REAL DEFAULT 1.0,
status TEXT DEFAULT 'active',
session_id TEXT,
turn_id INTEGER,
created_at TEXT DEFAULT CURRENT_TIMESTAMP,
updated_at TEXT DEFAULT CURRENT_TIMESTAMP,
date_bucket TEXT
)
`);
// 索引
this.db.exec(`
CREATE INDEX IF NOT EXISTS idx_entity_name ON entities(name);
CREATE INDEX IF NOT EXISTS idx_relation_status ON relations(status);
`);
}
async recall(params: RecallParams): Promise<RecallResult> {
const { queryIntent, seedEntities, sessionFilter } = params;
const keywords = queryIntent.split(/[,\s]+/).filter(k => k.length > 0);
const entities: Entity[] = [];
const relations: Relation[] = [];
const entityIds = new Set<string>();
// 搜索实体
for (const keyword of keywords) {
const rows = this.db.exec(
`SELECT * FROM entities WHERE LOWER(name) LIKE ? LIMIT 50`,
[`%${keyword.toLowerCase()}%`]
);
for (const row of rows) {
if (!entityIds.has(row.id)) {
entityIds.add(row.id);
entities.push(this.rowToEntity(row));
}
}
}
// 搜索关系
if (entityIds.size > 0) {
const placeholders = Array.from(entityIds).map(() => '?').join(',');
let query = `
SELECT r.*, e1.name as source_name, e2.name as target_name
FROM relations r
JOIN entities e1 ON r.source_id = e1.id
JOIN entities e2 ON r.target_id = e2.id
WHERE (r.source_id IN (${placeholders}) OR r.target_id IN (${placeholders}))
AND r.status = 'active'
`;
const queryParams = [...entityIds, ...entityIds];
if (sessionFilter) {
query += ` AND r.session_id = ?`;
queryParams.push(sessionFilter);
}
const rows = this.db.exec(query, queryParams);
for (const row of rows) {
relations.push(this.rowToRelation(row));
}
}
return { entities, relations, message: `找到 ${entities.length} 个实体, ${relations.length} 条关系` };
}
async commit(params: CommitParams): Promise<{ createdEntities: number; createdRelations: number }> {
const { triplets, sessionId, turnId } = params;
let createdEntities = 0;
let createdRelations = 0;
for (const triplet of triplets) {
const sourceId = this.upsertEntity(triplet.subject);
const targetId = this.upsertEntity(triplet.object);
this.db.exec(`
INSERT INTO relations (id, source_id, target_id, relation_type, confidence, session_id, turn_id, status)
VALUES (?, ?, ?, ?, ?, ?, ?, 'active')
`, [this.generateId(), sourceId, targetId, triplet.relation, triplet.confidence || 1.0, sessionId, turnId || 0]);
createdEntities += 2;
createdRelations++;
}
return { createdEntities, createdRelations };
}
async purge(params: PurgeParams): Promise<{ deleted: number; mode: string }> {
const { criteria, mode = 'soft' } = params;
const conditions: string[] = ['status = ?'];
const values: unknown[] = ['active'];
if (criteria.subject) {
conditions.push(`source_id IN (SELECT id FROM entities WHERE name = ?)`);
values.push(criteria.subject);
}
const whereClause = conditions.join(' AND ');
const result = this.db.exec(`UPDATE relations SET status = 'deleted' WHERE ${whereClause}`, values);
return { deleted: result.length, mode };
}
async introspect(): Promise<MemoryStats> {
const entityCount = this.db.exec(`SELECT COUNT(*) as c FROM entities`)[0]?.c || 0;
const relationCount = this.db.exec(`SELECT COUNT(*) as c FROM relations WHERE status = 'active'`)[0]?.c || 0;
return { entityCount, relationCount };
}
private upsertEntity(name: string): string {
const existing = this.db.exec(`SELECT id FROM entities WHERE name = ?`, [name]);
if (existing.length > 0) {
this.db.exec(`UPDATE entities SET mention_count = mention_count + 1 WHERE name = ?`, [name]);
return existing[0].id;
}
const id = this.generateId();
this.db.exec(`INSERT INTO entities (id, name, type) VALUES (?, ?, ?)`, [id, name, 'unknown']);
return id;
}
private generateId(): string {
return `${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
}
private rowToEntity(row: any): Entity {
return {
id: row.id, name: row.name, type: row.type || 'unknown',
mentionCount: row.mention_count || 1,
createdAt: new Date(row.created_at), updatedAt: new Date(row.updated_at)
};
}
private rowToRelation(row: any): Relation {
return {
id: row.id, sourceId: row.source_id, targetId: row.target_id,
relationType: row.relation_type, confidence: row.confidence || 1.0,
status: row.status || 'active', sessionId: row.session_id || '',
turnId: row.turn_id || 0,
createdAt: new Date(row.created_at), updatedAt: new Date(row.updated_at),
dateBucket: row.date_bucket || ''
};
}
close(): void { this.db.close(); }
}
```
### 5.2 GraphMemoryTool 实现
```typescript
// src/runtime/core/tools/builtin/graph_memory/graph_memory_tool.ts
import type { Tool, ToolExecutionContext, ToolInputSchema } from '../tool_interface';
import { GraphDatabase } from '../../../graph_memory/database/graph_database';
import { MemoryService } from '../../../graph_memory/service/memory_service';
export class GraphMemoryTool implements Tool {
readonly id = 'builtin:graph_memory';
readonly name = 'GraphMemory';
readonly description = `图记忆工具 - 让 AI 拥有真正的长期记忆能力
操作:
- recall: 检索记忆
- commit: 写入记忆
- purge: 删除记忆
- introspect: 查看状态
- persona_update/clear: 人设管理
- task_create/set_state/delete: 任务管理`;
readonly category = 'analysis';
readonly permissionLevel: 'safe' = 'safe';
readonly inputSchema: ToolInputSchema = {
type: 'object',
properties: {
action: {
type: 'string',
enum: ['recall', 'commit', 'purge', 'introspect', 'persona_update', 'persona_clear',
'task_create', 'task_set_state', 'task_delete', 'task_link_info'],
description: '记忆操作类型'
},
params: { type: 'object', description: '操作参数' }
},
required: ['action', 'params']
};
private db: GraphDatabase;
private service: MemoryService;
constructor(config: { dbPath: string; sessionId?: string }) {
this.db = new GraphDatabase(config.dbPath);
this.service = new MemoryService(this.db, config.sessionId);
}
async handler(params: Record<string, unknown>, context: ToolExecutionContext): Promise<string> {
const action = params.action as string;
const actionParams = params.params as Record<string, unknown>;
try {
const result = await this.executeAction(action, actionParams);
return JSON.stringify({ success: true, data: result }, null, 2);
} catch (error) {
return JSON.stringify({
success: false,
error: { type: 'execution_error', message: error instanceof Error ? error.message : String(error) }
}, null, 2);
}
}
private async executeAction(action: string, params: Record<string, unknown>): Promise<unknown> {
switch (action) {
case 'recall': return this.service.recall(params as any);
case 'commit': return this.service.commit(params as any);
case 'purge': return this.service.purge(params as any);
case 'introspect': return this.service.introspect();
case 'persona_update': return this.service.updatePersona(params);
case 'persona_clear': return this.service.clearPersona(params);
case 'task_create': return this.service.createTask(params);
case 'task_set_state': return this.service.setTaskState(params);
case 'task_delete': return this.service.deleteTask(params);
default: throw new Error(`Unknown action: ${action}`);
}
}
close(): void { this.db.close(); }
}
```
### 5.3 MemoryService 实现
```typescript
// src/runtime/core/graph_memory/service/memory_service.ts
import { GraphDatabase } from '../database/graph_database';
import type { RecallParams, CommitParams, PurgeParams } from '../types';
export class MemoryService {
private db: GraphDatabase;
private sessionId: string;
constructor(db: GraphDatabase, sessionId?: string) {
this.db = db;
this.sessionId = sessionId || `session-${Date.now()}`;
}
async recall(params: RecallParams) {
return this.db.recall({ ...params, sessionFilter: params.sessionFilter || this.sessionId });
}
async commit(params: CommitParams) {
return this.db.commit({ ...params, sessionId: params.sessionId || this.sessionId });
}
async purge(params: PurgeParams) {
return this.db.purge(params);
}
async introspect() {
const stats = await this.db.introspect();
return { ...stats, sessionId: this.sessionId };
}
async updatePersona(params: Record<string, unknown>) {
const attributes = params.attributes as Array<{ attribute: string; value: string }>;
const mode = params.mode as string || 'merge';
if (mode === 'replace') {
await this.db.purge({ criteria: { subject: 'AI' }, mode: 'soft' });
}
const triplets = attributes.map(attr => ({
subject: 'AI', relation: attr.attribute, object: attr.value, confidence: 1.0
}));
await this.commit({ triplets });
return { status: 'success', updatedAttributes: attributes.length };
}
async clearPersona(params: Record<string, unknown>) {
if (params.confirm === false) return { status: 'cancelled', deletedCount: 0 };
const result = await this.purge({ criteria: { subject: 'AI' }, mode: 'soft' });
return { status: 'success', deletedCount: result.deleted };
}
async createTask(params: Record<string, unknown>) {
const taskId = params.task_id as string;
const description = params.description as string;
const infoNodes = (params.info_nodes as string[]) || [];
await this.commit({
triplets: [
{ subject: taskId, relation: 'is_type', object: 'TaskNode' },
{ subject: taskId, relation: 'has_description', object: description },
{ subject: taskId, relation: 'HAS_STATE', object: 'State_进行中' }
]
});
if (infoNodes.length > 0) {
await this.commit({
triplets: infoNodes.map(node => ({ subject: taskId, relation: 'CONTAINS_INFO', object: node }))
});
}
return { status: 'success', taskId };
}
async setTaskState(params: Record<string, unknown>) {
const taskId = params.task_id as string;
const state = params.state as string;
await this.purge({ criteria: { subject: taskId, relation: 'HAS_STATE' }, mode: 'soft' });
await this.commit({ triplets: [{ subject: taskId, relation: 'HAS_STATE', object: `State_${state}` }] });
return { status: 'success', newState: state };
}
async deleteTask(params: Record<string, unknown>) {
const taskId = params.task_id as string;
await this.purge({ criteria: { subject: taskId }, mode: 'soft' });
return { status: 'success', taskId };
}
}
```
---
## 六、测试方案
### 6.1 测试文件结构
```
WaterFlow/ts/tests/
├── runtime/core/graph_memory/
│ ├── database/
│ │ └── graph_database.test.ts # 15+ 测试
│ └── service/
│ └── memory_service.test.ts # 12+ 测试
└── runtime/core/tools/builtin/
└── graph_memory/
└── graph_memory_tool.test.ts # 15+ 测试
```
### 6.2 数据库测试
```typescript
// tests/runtime/core/graph_memory/database/graph_database.test.ts
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { GraphDatabase } from '../../../../../src/runtime/core/graph_memory/database/graph_database';
import * as fs from 'fs';
describe('GraphDatabase', () => {
const testDbPath = '/tmp/test_graph_memory.db';
let db: GraphDatabase;
beforeEach(() => {
if (fs.existsSync(testDbPath)) fs.unlinkSync(testDbPath);
db = new GraphDatabase(testDbPath);
});
afterEach(() => {
db.close();
if (fs.existsSync(testDbPath)) fs.unlinkSync(testDbPath);
});
describe('commit', () => {
it('should create entities and relations', async () => {
const result = await db.commit({
triplets: [
{ subject: '用户', relation: '喜欢', object: 'Python' },
{ subject: '用户', relation: '正在学习', object: 'TypeScript' }
]
});
expect(result.createdEntities).toBe(3);
expect(result.createdRelations).toBe(2);
});
});
describe('recall', () => {
beforeEach(async () => {
await db.commit({
triplets: [
{ subject: '用户', relation: '喜欢', object: 'Python' },
{ subject: 'Python', relation: '是', object: '编程语言' }
]
});
});
it('should recall by keyword', async () => {
const result = await db.recall({ queryIntent: 'Python' });
expect(result.entities.some(e => e.name === 'Python')).toBe(true);
});
it('should recall relations', async () => {
const result = await db.recall({ queryIntent: '用户,Python' });
expect(result.relations.length).toBeGreaterThan(0);
});
});
describe('purge', () => {
beforeEach(async () => {
await db.commit({
triplets: [{ subject: '旧信息', relation: 'is', object: '垃圾' }]
});
});
it('should soft delete relations', async () => {
const result = await db.purge({ criteria: { subject: '旧信息' }, mode: 'soft' });
expect(result.deleted).toBeGreaterThan(0);
expect(result.mode).toBe('soft');
});
});
describe('introspect', () => {
it('should return statistics', async () => {
await db.commit({ triplets: [{ subject: 'A', relation: 'relates', object: 'B' }] });
const stats = await db.introspect();
expect(stats.entityCount).toBe(2);
expect(stats.relationCount).toBe(1);
});
});
});
```
### 6.3 服务层测试
```typescript
// tests/runtime/core/graph_memory/service/memory_service.test.ts
import { describe, it, expect, beforeEach } from 'vitest';
import { MemoryService } from '../../../../../src/runtime/core/graph_memory/service/memory_service';
import { GraphDatabase } from '../../../../../src/runtime/core/graph_memory/database/graph_database';
describe('MemoryService', () => {
const testDbPath = '/tmp/test_memory_service.db';
let db: GraphDatabase;
let service: MemoryService;
beforeEach(() => {
db = new GraphDatabase(testDbPath);
service = new MemoryService(db, 'test-session');
});
describe('persona management', () => {
it('should update persona', async () => {
const result = await service.updatePersona({
attributes: [{ attribute: '角色', value: '猫娘' }],
mode: 'replace'
});
expect(result.status).toBe('success');
expect(result.updatedAttributes).toBe(1);
});
it('should clear persona', async () => {
await service.updatePersona({ attributes: [{ attribute: '角色', value: '猫娘' }] });
const result = await service.clearPersona({ confirm: true });
expect(result.status).toBe('success');
});
});
describe('task management', () => {
it('should create task', async () => {
const result = await service.createTask({
task_id: 'Task_Test',
description: '测试任务',
info_nodes: ['info1']
});
expect(result.taskId).toBe('Task_Test');
});
it('should set task state', async () => {
await service.createTask({ task_id: 'Task_State', description: '测试' });
const result = await service.setTaskState({ task_id: 'Task_State', state: '已完成' });
expect(result.newState).toBe('已完成');
});
});
});
```
### 6.4 Tool 接口测试
```typescript
// tests/runtime/core/tools/builtin/graph_memory/graph_memory_tool.test.ts
import { describe, it, expect, beforeEach } from 'vitest';
import { GraphMemoryTool } from '../../../../../src/runtime/core/tools/builtin/graph_memory/graph_memory_tool';
import * as fs from 'fs';
describe('GraphMemoryTool', () => {
const testDbPath = '/tmp/test_graph_memory_tool.db';
let tool: GraphMemoryTool;
beforeEach(() => {
if (fs.existsSync(testDbPath)) fs.unlinkSync(testDbPath);
tool = new GraphMemoryTool({ dbPath: testDbPath, sessionId: 'test' });
});
it('should have correct metadata', () => {
expect(tool.id).toBe('builtin:graph_memory');
expect(tool.name).toBe('GraphMemory');
expect(tool.category).toBe('analysis');
});
describe('recall', () => {
it('should execute recall', async () => {
await tool.handler({ action: 'commit', params: { triplets: [{ subject: 'Test', relation: 't', object: 'D' }] } }, mockContext());
const result = await tool.handler({ action: 'recall', params: { query_intent: 'Test' } }, mockContext());
const parsed = JSON.parse(result);
expect(parsed.success).toBe(true);
});
});
describe('commit', () => {
it('should execute commit', async () => {
const result = await tool.handler({
action: 'commit',
params: { triplets: [{ subject: '用户', relation: '喜欢', object: 'AI' }] }
}, mockContext());
const parsed = JSON.parse(result);
expect(parsed.success).toBe(true);
});
});
describe('error handling', () => {
it('should return error for unknown action', async () => {
const result = await tool.handler({ action: 'unknown', params: {} }, mockContext());
const parsed = JSON.parse(result);
expect(parsed.success).toBe(false);
});
});
});
function mockContext() {
return {
toolCallId: 'test', workingDirectory: '/tmp', abortController: { signal: {} },
config: { timeout: 5000 }, logger: { info: () => {}, warn: () => {}, error: () => {}, debug: () => {} }
};
}
```
### 6.5 验证检查清单
```
[ ] GraphDatabase.commit - 创建实体和关系
[ ] GraphDatabase.recall - 按关键词检索
[ ] GraphDatabase.purge - 软删除
[ ] GraphDatabase.introspect - 返回统计
[ ] MemoryService.updatePersona - 人设更新
[ ] MemoryService.clearPersona - 人设清除
[ ] MemoryService.createTask - 创建任务
[ ] MemoryService.setTaskState - 设置状态
[ ] MemoryService.deleteTask - 删除任务
[ ] GraphMemoryTool recall action
[ ] GraphMemoryTool commit action
[ ] GraphMemoryTool persona_update action
[ ] GraphMemoryTool task_create action
[ ] GraphMemoryTool error handling
```
---
## 七、实现计划
| Phase | 任务 | 周期 | 测试 |
|-------|------|------|------|
| 1 | GraphDatabase 实现 | 2-3 天 | 15+ |
| 2 | MemoryService 实现 | 1-2 天 | 12+ |
| 3 | GraphMemoryTool 实现 | 1-2 天 | 15+ |
| 4 | 集成测试 | 1 天 | 8+ |
**总计**: 5-8 天50+ 测试用例