Guides
Is your project healthy? Check what costs the most.
Each guide covers one kind of problem: what goes wrong, how to spot it in your own code, a quick self-check, and what good looks like. No sign-up, nothing to install.
AI-built appsBuilt it with AI? Check what nobody reviewed.The gaps that keep showing up in apps from Lovable, Bolt, v0, Replit and coding agents.Read the guide Security checklistCould one user read another user's data?Access checks, secrets, injection, webhooks and rate limits: the gaps that get apps breached.Read the guide Technical SEOCan Google actually read your pages?Rendering, titles, robots, canonicals and structured data: the SEO you fix in code.Read the guide Codebase structureDoes every fix break something else?Boundaries, layering, cycles and duplication: why structure sets the cost of every change.Read the guide Critical issuesWould you notice if a payment failed silently?Half-finished writes, silent errors, missing timeouts and config gaps, found before launch.Read the guide Web performanceWhy does your site feel slow?LCP, INP and CLS traced back to the code decisions that cause them.Read the guide Second opinionWho reviewed the code you (or your AI) wrote?Why authors miss their own bugs, and what a review worth having looks like.Read the guide
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