I've been building VibeKit for the past few months — an AI coding agent platform where every app gets its own persistent AI agent, a real GitHub repo, and a live domain. Along the way I've ended up with strong opinions about a few things: what "persistent agent" actually means in practice, why most BYOK pricing math is wrong, what fails when you bolt an LLM onto an IDE without thinking about state, and where the agent-tooling category is going.
This blog is where I'll write that down.
What you'll find here
A few things, deliberately:
- Architecture deep-dives with real numbers — latencies measured against my own infrastructure, costs computed against real OpenRouter token prices, not vendor-friendly approximations.
- Opinionated takes that push back on category consensus when I think it's wrong. Generic "AI is amazing" content is plentiful and worthless.
- Code I wish I'd seen earlier — patterns like
AGENTS.mdfor persistent memory, BYOK auth flows, multi-tenant container hygiene. The kind of thing you only learn by shipping something to real users and watching them break it.
What you won't find here
- Listicles. "Top 10 AI tools for developers" is a sea of identical posts; I'm not going to add to it.
- Generic "AI is amazing" hype. There's enough of that.
- AI-written first drafts shipped without serious editing. Everything here gets read, fact-checked, and rewritten. Where a piece relies on quantified claims, the numbers are either from my own infrastructure or from a public source that gets cited.
Posts already up
- How AGENTS.md works — the persistent-memory pattern that lets an AI coding agent remember architectural decisions across sessions.
- BYOK vs platform-paid — original cost research on what 1,000 features actually run you on Lovable Pro, Replit Core, Bolt Pro, and BYOK at OpenRouter prices.
- Most "AI agents" aren't agents — a definition that scores popular tools honestly.
If you want to follow along, @609.sol on X is where I share new posts. The VibeKit Telegram bot is where you'd actually use the product.
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