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tool-permission-system

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Design and implement a layered, configurable permission/safety system for agent tools. Use this skill when building an agent that needs to control which tool calls are auto-allowed, which require user confirmation, and which are denied — especially when the system must be configurable across multiple scopes (project/user/enterprise) and extensible via hooks. Triggers on: "权限系统", "工具安全", "tool permission", "permission system", "tool safety", "allow/deny rules", "hook system", "构建安全机制".

skills/tool-permission-system/SKILL.md

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Aug 26, 2026
License
MIT

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# Tool Permission System

## Core Idea

Every time an agent calls a tool, a **permission pipeline** runs before execution. This pipeline is the single place that decides: auto-allow, ask the user, or deny. The pipeline is layered — different stakeholders (enterprise admin, user, project team, session) can each contribute rules, with higher layers overriding lower ones.

```
Tool call request
  ↓
[硬否决] Deny rules → immediate deny
  ↓
[强制确认] Ask rules → force prompt (even in bypass mode)
  ↓
[工具自身] Tool's checkPermissions() → tool-specific logic
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