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5.0 KiB
5.0 KiB
title, tags, aliases, source
| title | tags | aliases | source | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Agent技能系统 |
|
|
agent-skills.md |
Agent 技能系统
概述
Agent Skills 是一种让 Agent 通过阅读"使用说明书"来学习新能力的扩展机制。与传统的硬编码工具不同,Skills 通过注入到 System Prompt 来扩展 Agent 的能力,遵循 Progressive Disclosure(渐进式披露) 的设计理念。目前仅支持带智能推理能力的智能体使用。
核心特性
- 非侵入式扩展:不影响原有 Agent ReAct 流程
- 按需加载:三级渐进式加载,优化 Token 使用
- 沙箱执行:脚本在隔离环境中安全执行
- 灵活配置:支持多目录、白名单过滤
Skills 与 MCP 是两种不同的 Agent 扩展机制:Skills 通过 Prompt 注入,MCP 通过协议调用外部工具。
设计理念
Progressive Disclosure(渐进式披露)
┌─────────────────────────────────────────────────────────────────┐
│ Level 1: 元数据 (Metadata) │
│ • 始终加载到 System Prompt • 约 100 tokens/skill │
│ • 包含:技能名称 + 简短描述 │
└─────────────────────────────────────────────────────────────────┘
↓ 用户请求匹配时
┌─────────────────────────────────────────────────────────────────┐
│ Level 2: 指令 (Instructions) │
│ • 通过 read_skill 工具按需加载 • SKILL.md 的指令内容 │
│ • 包含:详细指令、代码示例、使用方法 │
└─────────────────────────────────────────────────────────────────┘
↓ 需要更多信息时
┌─────────────────────────────────────────────────────────────────┐
│ Level 3: 附加资源 (Resources) │
│ • 通过 read_skill 工具加载特定文件 │
│ • 通过 execute_skill_script 执行脚本 │
└─────────────────────────────────────────────────────────────────┘
Skill 目录结构
my-skill/
├── SKILL.md # 必需:主文件(含 YAML frontmatter)
├── REFERENCE.md # 可选:补充文档
├── templates/ # 可选:模板文件
└── scripts/ # 可选:可执行脚本
预加载技能
系统内置了以下 5 个预加载技能:
| 技能 | 用途 |
|---|---|
| citation-generator | 自动生成规范引用格式 |
| data-processor | 数据处理与分析 |
| doc-coauthoring | 引导用户完成结构化文档创作 |
| document-analyzer | 深度分析文档结构和内容 |
| summary-generator | 内容摘要生成 |
预加载技能位于 skills/preloaded/ 目录下。
沙箱安全机制
脚本安全校验
执行前进行多层安全校验:危险命令检测、危险模式匹配、网络访问检测、反向 Shell 检测、参数注入检测等。
Sandbox 配置
空间管理员在「设置 → 沙箱后端」中统一维护 Docker、CubeSandbox 或 E2B 配置。远端模板从目标集群实时获取;缺少 WeKnora 标准模板时由系统自动创建。智能体在编辑页选择一份空间配置,没有选择时不执行技能脚本。Docker、CubeSandbox、E2B 均保留会话级沙箱。
配置示例
{
"skills_enabled": true,
"skill_dirs": ["/path/to/project/skills"],
"allowed_skills": ["pdf-processing", "code-review"]
}