Introducing CodeLoop

AI coding agents like Cursor and Claude Code have changed how we build software. They can write entire features, fix bugs, and refactor code — all from natural language instructions. But there's a problem nobody talks about: who verifies the code actually works?

The Manual Testing Loop

Today, the workflow looks like this:

You ask your AI agent to implement a feature

The agent writes the code

You manually run the app and test it

You find 5 bugs

You tell the agent about the bugs

The agent fixes 3 bugs but introduces 2 new ones

You test again

Repeat until it works (or until you give up)

This back-and-forth cycle is exhausting. It's the bottleneck of AI-powered development — not the coding itself, but the verification.

What CodeLoop Does

CodeLoop automates this entire loop. It runs as an MCP (Model Context Protocol) server that your AI agent calls directly:

codeloop_verify — Runs build, lint, tests, and screenshots in one call

codeloop_diagnose — Categorizes failures and creates prioritized repair tasks

codeloop_gate_check — Provides confidence-scored quality gates

The agent can now code, verify, diagnose, and fix in a continuous loop — without any human intervention until the confidence score is high enough.

How It Works

Install: Run npx codeloop init in your project

Code normally: Your AI agent implements features as usual

CodeLoop auto-verifies: After each implementation, the agent calls CodeLoop tools

Self-repair loop: If verification fails, the agent diagnoses and fixes automatically

Gate check: When confidence reaches your threshold, the section is done

Why It's Different

Runs locally: No cloud compute, no latency. The MCP server runs on your machine.

Agent-native: Built for MCP, the standard protocol both Cursor and Claude Code support.

Evidence-based: Every decision backed by actual build logs, test results, and screenshots.

Near-zero cost: Your AI agent uses its own LLM tokens. CodeLoop just orchestrates.

Multi-Section Orchestration

For larger projects, CodeLoop can manage entire apps section-by-section. Each section goes through the verify-diagnose-fix loop independently, and the agent continues to the next section without waiting for human input. The result: your AI agent builds an entire app to high confidence before you even need to look at it.

Getting Started

CodeLoop is now in public beta with a 14-day free trial:

npx codeloop init

No credit card required. Works with Cursor and Claude Code.

We believe the future of development is AI agents that can verify their own work. CodeLoop is the verification layer that makes this possible.

Start your free trial → | Read the docs →