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expensive-to-add-later

Some things you Probably Are Gonna Need - know when YAGNI doesn't apply because retrofitting is dramatically more expensive than building it in from the start.

  • Skills
  • Productivity
  • 0

What it does and how to use it

A skill that teaches Claude Code to do productivity tasks well. It is packaged knowledge the model uses whenever it is relevant.

  1. Install the skill (command above).
  2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
  3. No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/expensive-to-add-later && curl -fsSL https://doutorai.pt/data/lib/skills__expensive-to-add-later.md -o .claude/skills/expensive-to-add-later/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

---
description: Some things you Probably Are Gonna Need - know when YAGNI doesn't apply because retrofitting is dramatically more expensive than building it in from the start.
---

# PAGNI: Probably Are Gonna Need It

## The Core Insight

> "When should you override YAGNI? When the cost of adding something later is so dramatically expensive compared with the cost of adding it early on that it's worth taking the risk."

YAGNI is a good default. But some things are genuinely cheaper to build in from the start than to retrofit later. Know the difference.

## Why This Matters

Ruthless YAGNI appl

- 🔒 Full content on the Pro plan (€7.99/month) -

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