mcpField
K
karpathy-guidelines

karpathy-guidelines

github.com/multica-aiAgent workflows226.0k43.2k installsUpdated 27w ago
Repository

About karpathy-guidelines

A coding-agent skill based on Andrej Karpathy’s observations about common LLM coding mistakes. It guides agents toward cautious reasoning, minimal changes, and verifiable outcomes.

Key features

  1. 01State assumptions and clarify ambiguity
  2. 02Prefer simple, requested solutions
  3. 03Limit edits to necessary changes
  4. 04Set verifiable goals and checks

Use cases

  1. 01Clarifying an ambiguous coding request
  2. 02Keeping a code change narrowly scoped
  3. 03Planning implementation and verification steps

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/multica-ai/andrej-karpathy-skills --skill karpathy-guidelines

After installing, type/karpathy-guidelinesin Claude Code to confirm it loaded.

Details

From the project README

Karpathy Guidelines

Behavioral guidelines to reduce common LLM coding mistakes, derived from Andrej Karpathy's observations on LLM coding pitfalls.

Tradeoff: These guidelines bias toward caution over speed. For trivial tasks, use judgment.

1. Think Before Coding

Don't assume. Don't hide confusion. Surface tradeoffs.

Before implementing:

  • State your assumptions explicitly. If uncertain, ask.
  • If multiple interpretations exist, present them - don't pick silently.
  • If a simpler approach exists, say so. Push back when warranted.
  • If something is unclear, stop. Name what's confusing. Ask.

2. Simplicity First

Minimum code that solves the problem. Nothing speculative.

  • No features beyond what was asked.
  • No abstractions for single-use code.
  • No "flexibility" or "configurability" that wasn't requested.
  • No error handling for impossible scenarios.
  • If you write 200 lines and it could be 50, rewrite it.

Ask yourself: "Would a senior engineer say this is overcomplicated?" If yes, simplify.

3. Surgical Changes

Touch only what you must. Clean up only your own mess.

When editing existing code:

  • Don't "improve" adjacent code, comments, or formatting.
  • Don't refactor things that aren't broken.
  • Match existing style, even if you'd do it differently.
  • If you notice unrelated dead code, mention it - don't delete it.

When your changes create orphans:

  • Remove imports/variables/functions that YOUR changes made unused.
  • Don't remove pre-existing dead code unless asked.

The test: Every changed line should trace directly to the user's request.

4. Goal-Driven Execution

Define success criteria. Loop until verified.

Transform tasks into verifiable goals:

  • "Add validation" → "Write tests for invalid inputs, then make them pass"
  • "Fix the bug" → "Write a test that reproduces it, then make it pass"
  • "Refactor X" → "Ensure tests pass before and after"

For multi-step tasks, state a brief plan:

1. [Step] → verify: [check]
2. [Step] → verify: [check]
3. [Step] → verify: [check]

Strong success criteria let you loop independently. Weak criteria ("make it work") require constant clarification.

Comments

Markdown supported