I didn't set out to build a diary. I set out to build a canvas.
agent-flow-canvas is a browser-based visual builder for AI agent workflows — drag out a Trigger, an LLM node, a Router, a Memory block, a Subagent, wire them together, press run, watch the graph execute live in your own tab. No download. No install. No login. Your API keys never leave localStorage and never touch a server I control — they go straight from your browser to OpenAI, Anthropic, Gemini, Ollama, or whatever OpenAI-compatible endpoint you point it at. There's no backend in the run path at all. That was the whole design brief: you bring the keys, the browser does the work, I never see either one.
But that's not the part that got me.
The part that got me was a file I never meant to write by hand: test_result.md.
I. The Accident
