YAGNI - You Aren’t Gonna Need It 🙅‍♂️

The YAGNI principle states:

« Don’t implement something until it is necessary. »

The Principle

Don’t speculate too far ahead and over-engineer something you might not need. Only implement what’s required for now.

Benefits

• Avoid wasted effort
• Keep things simple now
• Adapt to future needs if they arise
• Deploy faster by building less

How to Apply YAGNI

• Resist planning too far ahead
• Build only the core functionality first
• Refactor when new needs arise, no upfront over-engineering
• Focus on essentials for users now, not what might be useful later

Examples

• Don’t create abstract layers until required
• Don’t build generalizations just in case
• Don’t code for scalability not yet needed
• Don’t add features users haven’t requested

YAGNI focuses on building only what’s needed today in the simplest way. It avoids speculative over-engineering and complexity.