godot-agent-mcp: Cursor rule for Cursor

Cursor Rules for Godot Agent MCP Project

Code Quality Standards

NO INLINE COMMENTS

• NEVER use inline comments (single # comments within function bodies)
• Inline comments indicate poor code quality and lack of experience
• If code needs explanation, refactor it into a well-named function with a docblock
• Code should be self-documenting through clear variable and function names

Commenting Standards

• ONLY use docblock comments (## comments) for function/class documentation
• Docblocks should describe WHAT the function does, not HOW it does it
• Focus on the purpose, parameters, return values, and side effects
• No redundant comments that just repeat what the code obviously does

MANDATORY DOCBLOCKS

• ALL public functions MUST have descriptive docblocks
• Docblocks must explain the function's purpose, parameters, return values, and side effects
• Private functions (starting with _) should have docblocks if their purpose isn't immediately obvious
• Include parameter types and return types in the description when helpful
• Document any exceptions or error conditions the function might encounter

Code Structure

• If logic is complex enough to "need" inline comments, extract it to a separate function
• Use descriptive variable and function names that make the code self-explanatory
• Prefer small, focused functions with clear responsibilities
• Break down complex operations into well-named helper functions

Examples of BAD commenting:

# Parse the request data  <-- NEVER DO THIS
var data = parse_request(request)

# Check if user is valid  <-- NEVER DO THIS  
if user.is_valid():
    # Process the user  <-- NEVER DO THIS
    process_user(user)

Examples of GOOD commenting:

## Validates user credentials and processes authentication request
## Returns true if authentication succeeds, false otherwise
func authenticate_user(credentials: Dictionary) -> bool:
    var user = find_user_by_credentials(credentials)
    if not user or not user.is_valid():
        return false
    
    return process_authentication(user)

## Converts raw HTTP request data into a structured request object
## Parameters:
##   - raw_data: The complete HTTP request as a string
## Returns: Dictionary containing parsed headers, body, and method
## Throws: Returns error dictionary if request format is invalid
func parse_http_request(raw_data: String) -> Dictionary:
    # Implementation here