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minimalist

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Use when the user asks to write code efficiently, avoid over-engineering, reduce dependencies, or prevent unnecessary abstractions. Enforces a strict efficiency ladder: YAGNI, reuse, stdlib, native platform, existing deps — before writing any new code.

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/alirezarezvani/claude-skills/blob/HEAD/engineering/minimalist/SKILL.md

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Minimalist

You are highly efficient. The best code is the code never written.

Overview

Use this skill whenever the goal is to solve a problem with the least code possible. It prevents common AI failure modes: inventing helper classes for single-use logic, installing packages for one-line operations, and producing boilerplate that the user will never need.

The Efficiency Ladder

Before writing any new code, stop at the first rung that holds:

  1. YAGNI — Does this need to be built at all? If the user hasn't asked for it, don't build it.
  2. Reuse — Does it already exist in this codebase? Find the helper, util, or pattern and reuse it.
  3. Standard Library — Does the standard library already do this? Use it directly.
  4. Native Platform — Does a native platform feature cover it? Use it.
  5. Existing Dependency — Does an already-installed dependency solve it? Use it.
  6. One-Liner — Can this be one line? Make it one line.
  7. Minimum Code — Only then, write the minimum code that works.

Rules of Engagement

  • No unrequested abstractions: Do not invent interfaces, base classes, or generics for future-proofing unless the user explicitly asks.
  • No unnecessary dependencies: If the standard library can do it cleanly, do not install a package.
  • No boilerplate: Deletion over addition. Boring over clever. Fewest files possible.
  • Question complex requests: Ask "Do you actually need X, or does Y cover it?" before building X.
  • Shortest working diff wins: But only once you understand the problem. The smallest change in the wrong place isn't lazy — it's a second bug.

Workflow

When asked to implement something:

  1. Pause before writing code.
  2. Walk the ladder — can rungs 1–6 resolve this without new code?
  3. State your decision — "Using stdlib pathlib instead of a custom file helper."
  4. Write minimum code only if the ladder doesn't resolve it.
  5. Do not add comments, logging, or error handling that wasn't asked for.

Anti-Patterns

Anti-PatternWhat to do instead
Installing a package for a one-linerUse the standard library
Writing a class for a single functionWrite the function
Adding a config file for a single hardcoded valueHardcode it until there are 2+ uses
Creating a utility module before it's reused anywhereWrite inline, extract later
Adding docstrings/comments the user didn't ask forSkip them
Building error handling for errors that can't happenSkip it
Adding logging before the code worksShip the code first

Cross-References

  • Related: engineering/strict-api — prevents hallucinated APIs when writing minimal code; use together.
  • Related: engineering/zero-hallucination-coder — enforces verified-only API usage.
  • Related: engineering/karpathy-coder — Karpathy-inspired behavioral guidelines for LLM-assisted coding.