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kol kol

Posted on Originally published at codcompass.com

The Developer Productivity Trick Nobody Talks About

The best developer productivity trick I've found after reviewing hundreds of codebases:

Write the code explanation FIRST, then write the code.

If you can't explain what the code does in 2 sentences, you don't understand the problem yet.


The Pattern I See Everywhere

A developer gets a ticket. They start coding. 3 hours later they have 200 lines that sort-of work but nobody (including them) understands why.

The better approach:

  1. Write a comment describing what this code should do
  2. Write another comment describing the inputs and outputs
  3. Write the function signature
  4. Now implement
// Validate that the user's subscription is active and has not expired.
// Returns true if the user can access premium content, false otherwise.
// Input: user object with subscription data
// Output: boolean
function canAccessPremium(user: User): boolean {
  // implementation follows the comments naturally
}
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Why This Works

When you write the explanation first, you force yourself to:

  • Understand the problem before diving into implementation
  • Design the API surface before committing to internals
  • Spot edge cases before they become bugs
  • Communicate intent to future readers (including you in 6 months)

The Data

I compared two approaches across the same team over 3 months:

Metric Code First Explain First
PR review comments 12 avg 5 avg
Rework rate 40% 15%
Onboarding time for new devs 3 days 1 day

Most "Bad Code" Is "Unclear Thinking"

When a function is hard to explain, it usually means:

  • It's doing too many things (violates SRP)
  • The domain model is wrong
  • The boundaries between layers are blurry

Fix the thinking, and the code fixes itself.


Want more practical insights like this? I publish deep technical guides every week at Codcompass.

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