VibeCheck — QA Gate for Vibe-Coded Products

Turns AI-generated apps from “looks fine, breaks on click” into shippable products

Problem

A user built a forum app and browser extension with Codex over many iterations, yet only the main screen looked right—clicking into APIs almost always errored, bugs piled up, and fixing them required heavy manual involvement. It never reached the promise of “describe one thing, get a working product in one or two revisions.” Another developer asked how others vibe code successfully, saying their results are poor. The core gap is the lack of systematic runtime and API verification after AI generation.

Solution

A QA tool for the vibe-coding workflow: automatically runs API smoke tests, page navigation, and form submissions against AI-generated web apps, classifies failures into “missing endpoint,” “parameter mismatch,” “auth issue,” and writes fix suggestions back to the coding agent. It does not replace the agent—it adds an executable acceptance layer after delivery.

Users

Non-professional builders, indie hackers, PMs prototyping with small team quotas

MVP

Import a local project or repo URL; auto-detect common frontend routes and API calls; generate and run smoke-test scripts; output a categorized error list; generate fix prompts pasteable back into Codex/Claude Code

Revenue

Free tier plus subscription (more projects, scheduled regression, CI integration); also as a paid plugin or gateway add-on for coding agents

Why now

Vibe coding tools are widespread but output quality is unstable, and users are already complaining about manual overhead; existing tools focus on generation, leaving an acceptance gap that an indie can fill