julianmemberstack

julianmemberstack / marko

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Marko — a grumpy senior code reviewer for Claude Code and Codex. Verdict, concrete gripes, no praise inflation, no suggested fixes.

38
2
100% credibility
Found Apr 25, 2026 at 38 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Shell
AI Summary

Marko is a blunt code review skill for AI coding assistants Claude Code and Codex that outputs a severity verdict and line-specific critiques without fix suggestions.

How It Works

1
🔍 Discover Marko

You hear about Marko, the straightforward code checker that gives tough love to your AI coding helper.

2
🚀 Set up Marko

Run one easy command to add Marko to your AI coding tools.

3
🔄 Restart session

Refresh your AI coding session to wake up Marko.

4
Summon Marko
🗣️
Claude Code

Say 'marko?' or 'hey Marko' in conversation.

⌨️
Codex

Type '/marko' to get his opinion.

5
📋 Receive verdict

Marko delivers a one-word rating and lists exact spots needing work, keeping it real and direct.

👍 Stronger code

Your code gets better thanks to Marko's no-fluff feedback that points out real issues.

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Star Growth

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AI-Generated Review

What is marko?

Marko installs as a shell script that drops grumpy code review prompts into Claude Code and Codex sessions. Say "marko?" or type "/marko" and it scans your git diff, branch changes, or recent edits, spitting out a one-word verdict like "bad" plus pinpointed gripes—no fluff, no fixes. It solves the problem of AI assistants that praise everything, delivering raw signal on bugs like concurrency issues or PII leaks.

Why is it gaining traction?

In a sea of sycophantic AI reviewers, Marko stands out with zero praise inflation—"ok" is rare praise—and file-line anchors that other agents can action directly. Devs hook it via natural triggers in Claude Code or slash commands in Codex, even looping it every 10 minutes for live feedback. Searches for github marko petrov, marko denic github, or marko js github often land here instead of templating libs, hooked by its brutal honesty.

Who should use this?

Backend engineers wrestling concurrency or auth bugs in TypeScript nodes will love its concrete callouts. Solo devs pairing with Claude Code for quick branch reviews, or Codex users wanting a pre-ship sanity check without verbose essays. Ideal if you're knezevic marko.github-style tinkerer tired of vague "looks good" from marko luksa github-inspired tools.

Verdict

Grab it if you use Claude Code or Codex daily—38 stars and 1.0% credibility scream early experiment, but crisp docs and one-command install make it dead simple to try. Low maturity means watch for prompt drift, but for unfiltered feedback, it's a sharp tool.

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