Code File Line Limit Specification

A single code file must have ≤ 300 lines. This is a mandatory restriction with no exceptions.

⚠️ Core Mandatory Requirements

• Check timing: When creating a new file, after modifying an existing file
• Overlimit handling: Must be split immediately, discuss the solution with the user before splitting
• Prohibited actions: ❌ Exceeding 300 lines on grounds such as "complex functions" is not allowed

AI Agent Behavior Requirements

After creating/modifying files

1. Check the number of lines immediately
2. If it exceeds 300 lines, must stop and propose splitting suggestions
3. Provide a specific splitting plan (file list, responsibility division)

During code review

• Check whether all relevant files have ≤ 300 lines
• Must point out immediately if overlimit files are found

Acceptance Criteria

• All files have ≤ 300 lines (mandatory requirement)
• Each file has clear responsibilities after splitting

References

• references/splitting-guide.md

  - Detailed guide to file splitting (splitting principles, processes, common patterns)