Single Responsibility Principle

Each file, function, and module should only be responsible for one clear function or responsibility.

⚠️ Core Mandatory Requirements

1. File Level

• The main function of the file can be described in one sentence
• All functions/classes are related to the main function

2. Function Level

• The function name clearly expresses the single responsibility
• Internal logic revolves around a clear goal

3. Module Level

• Divided by business domain or technical level
• No circular dependencies

AI Agent Behavior Requirements

When Creating Code

1. Plan responsibility boundaries before coding
2. If you are not sure how to divide, actively discuss with the user

When Modifying Code

1. Check whether the current responsibility division is reasonable
2. Provide refactoring suggestions when problems are found
3. Confirm the solution with the user before splitting

When Unclear Responsibilities Are Found

⚠️ 职责划分建议
当前问题：[描述]
建议拆分方案：[具体文件/职责]
是否执行拆分？

Combined Use with

architecture-governance

• When the change involves layered boundaries, dependency direction, interface contracts, trigger

  architecture-governance

  first.
• When the core of the change is responsibility splitting, boundary clarification, file/class slimming, trigger this skill.
• If both occur at the same time, the order is:

  1. architecture-governance

     (define architecture boundaries)

  2. single-responsibility

     (perform responsibility splitting)

  3. architecture-governance

     (review dependencies and layering)

Classification Labeling

• This skill is an independently reusable general principle skill.
• In architecture governance scenarios, it is used as a linked sub-principle of

  architecture-governance

  .

References

• references/file-level.md

  - Detailed description of file-level responsibility division

• references/function-level.md

  - Detailed description of function-level responsibility division

• references/module-level.md

  - Detailed description of module-level responsibility division