Writing
Notes on proving software works.
False greens, the agent dev loop, and what it takes to trust a green check.
Why a green check isn't proof
A passing test tells you the page rendered. It doesn't tell you the app works. The gap between those two is where false greens live.
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Benchmarks · June 20, 2026 · 16 min readI gave my coding agent eyes three different ways. Here's the honest scorecard.
Playwright MCP, Chrome DevTools MCP, and Reticle all let an AI coding agent see a running web app. I built Reticle, so I ran a committed benchmark across all three and wrote down where each one wins and where mine loses.
Workflow · June 18, 2026 · 2 min readThe bottleneck moved, and nobody updated the org chart
Agents research and write code in minutes. Then a human spends two days verifying it. The slow step isn't the code anymore, it's the proof.