{
    "summary": [
        {
            "name": "pipeline_agent_instances",
            "title": "角色agent实例注册表（项目×角色→稳定实例id;m0002建表未进models,2026-09-10归籍;唯一写入方agent_instance.py,44行活表）",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "主键ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "project_id", "title": "项目ID(空串=全局)", "type": "str", "length": 32, "nullable": "no", "default": ""},
        {"name": "role", "title": "角色名", "type": "str", "length": 64, "nullable": "no"},
        {"name": "agent_id", "title": "稳定agent实例ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "status", "title": "状态", "type": "str", "length": 16, "nullable": "no", "default": "active"},
        {"name": "created_at", "title": "创建时间", "type": "timestamp", "nullable": "no"},
        {"name": "updated_at", "title": "更新时间", "type": "timestamp", "nullable": "no"}
    ],
    "indexes": [
        {"name": "idx_pai_pr", "idxtype": "unique", "idxfields": ["project_id", "role"]}
    ]
}