ontology

本体

用于将知识表示为可验证图的类型化词汇与约束系统。

核心概念

所有内容都是一个实体，具有类型、属性以及与其他实体的关系。每次变更都会先根据类型约束进行验证，再提交。

Entity: { id, type, properties, relations, created, updated }
Relation: { from_id, relation_type, to_id, properties }

适用场景

触发条件	操作
“记住……”	创建/更新实体
“我对 X 了解什么？”	查询图
“将 X 与 Y 关联”	创建关系
“显示项目 Z 的所有任务”	遍历图
“哪些内容依赖于 X？”	查询依赖关系
规划多步骤工作	将其建模为图转换
技能需要共享状态	读写本体对象

核心类型

# Agents & People
Person: { name, email?, phone?, notes? }
Organization: { name, type?, members[] }

# Work
Project: { name, status, goals[], owner? }
Task: { title, status, due?, priority?, assignee?, blockers[] }
Goal: { description, target_date?, metrics[] }

# Time & Place
Event: { title, start, end?, location?, attendees[], recurrence? }
Location: { name, address?, coordinates? }

# Information
Document: { title, path?, url?, summary? }
Message: { content, sender, recipients[], thread? }
Thread: { subject, participants[], messages[] }
Note: { content, tags[], refs[] }

# Resources
Account: { service, username, credential_ref? }
Device: { name, type, identifiers[] }
Credential: { service, secret_ref }  # Never store secrets directly

# Meta
Action: { type, target, timestamp, outcome? }
Policy: { scope, rule, enforcement }

存储

默认路径：memory/ontology/graph.jsonl

{"op":"create","entity":{"id":"p_001","type":"Person","properties":{"name":"Alice"}}}
{"op":"create","entity":{"id":"proj_001","type":"Project","properties":{"name":"Website Redesign","status":"active"}}}
{"op":"relate","from":"proj_001","rel":"has_owner","to":"p_001"}

通过脚本或直接操作文件进行查询。对于复杂图，可迁移到 SQLite。

工作流

创建实体

python3 scripts/ontology.py create --type Person --props '{"name":"Alice","email":"[email protected]"}'

查询

python3 scripts/ontology.py query --type Task --where '{"status":"open"}'
python3 scripts/ontology.py get --id task_001
python3 scripts/ontology.py related --id proj_001 --rel has_task

关联实体

python3 scripts/ontology.py relate --from proj_001 --rel has_task --to task_001

验证

python3 scripts/ontology.py validate  # Check all constraints

约束

在 memory/ontology/schema.yaml 中定义：

types:
  Task:
    required: [title, status]
    status_enum: [open, in_progress, blocked, done]
  
  Event:
    required: [title, start]
    validate: "end >= start if end exists"

  Credential:
    required: [service, secret_ref]
    forbidden_properties: [password, secret, token]  # Force indirection

relations:
  has_owner:
    from_types: [Project, Task]
    to_types: [Person]
    cardinality: many_to_one
  
  blocks:
    from_types: [Task]
    to_types: [Task]
    acyclic: true  # No circular dependencies

技能契约

使用本体的技能应声明：

# In SKILL.md frontmatter or header
ontology:
  reads: [Task, Project, Person]
  writes: [Task, Action]
  preconditions:
    - "Task.assignee must exist"
  postconditions:
    - "Created Task has status=open"

将规划建模为图转换

将多步骤计划建模为一系列图操作：

Plan: "Schedule team meeting and create follow-up tasks"

1. CREATE Event { title: "Team Sync", attendees: [p_001, p_002] }
2. RELATE Event -> has_project -> proj_001
3. CREATE Task { title: "Prepare agenda", assignee: p_001 }
4. RELATE Task -> for_event -> event_001
5. CREATE Task { title: "Send summary", assignee: p_001, blockers: [task_001] }

每个步骤都会在执行前进行验证。违反约束时回滚。

集成模式

与因果推断集成

将本体变更记录为因果操作：

# When creating/updating entities, also log to causal action log
action = {
    "action": "create_entity",
    "domain": "ontology", 
    "context": {"type": "Task", "project": "proj_001"},
    "outcome": "created"
}

跨技能通信

# Email skill creates commitment
commitment = ontology.create("Commitment", {
    "source_message": msg_id,
    "description": "Send report by Friday",
    "due": "2026-01-31"
})

# Task skill picks it up
tasks = ontology.query("Commitment", {"status": "pending"})
for c in tasks:
    ontology.create("Task", {
        "title": c.description,
        "due": c.due,
        "source": c.id
    })

快速开始

# Initialize ontology storage
mkdir -p memory/ontology
touch memory/ontology/graph.jsonl

# Create schema (optional but recommended)
cat > memory/ontology/schema.yaml << 'EOF'
types:
  Task:
    required: [title, status]
  Project:
    required: [name]
  Person:
    required: [name]
EOF

# Start using
python3 scripts/ontology.py create --type Person --props '{"name":"Alice"}'
python3 scripts/ontology.py list --type Person

参考资料

• references/schema.md — 完整的类型定义和约束模式
• references/queries.md — 查询语言和遍历示例