The Deepdive

I Vibe‑Coded a Chrome Extension With Two AIs: 163 Versions, 12 Architecture Decisions, Zero Regrets?


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You know that late-night feeling when you’re scared to close a tab because the web will move on without you? We chase that exact anxiety into a deceptively simple idea: a temporal bookmark that captures a webpage’s clean URL and a full page visual snapshot at the same time, so your “proof” never becomes an orphaned screenshot or a broken link. What sounds like a small Chrome extension quickly becomes a case study in AI-assisted software development, where speed is the superpower and judgment is the missing ingredient.

We break down the split-brain build setup: Claude plays product manager and architect, drafting roadmaps and architecture docs, while OpenAI Codex plays the relentless builder, writing JavaScript and keeping continuous integration green. That momentum creates new problems fast, from AI amnesia solved with a session.md handoff ritual to a comical 163 version bumps in nine days. Then the real satire kicks in: enterprise-grade governance for a one-user tool, including ADRs, AST-based privacy enforcement that blocks any network calls, and even scripts that fail the build if documentation gets ahead of the code.

The story goes beyond laughs. We dig into training-data bias that nudges agents toward freemium “capability tiers,” the human decision to mandate “always free forever,” and the most mundane blocker that stops everything: a Figma permission seat that no amount of agentic coding can bypass. We end by asking the question that matters for every builder using AI coding tools: are you solving the core problem, or automating an invisible bureaucracy around yourself?

If this sparked ideas or discomfort, subscribe, share the episode with a builder friend, and leave a review. What rule or guardrail would you add to keep AI speed from turning into AI bloat?

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The DeepdiveBy Allen & Ida