Journal

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Built a web script synthesizer

One year at the trading firm. Scripts are saturating CPUs, stalling servers; Forced to restart them.

2025-02: Built a tool to record browser sessions and synthesize better scripts.

Stack: C# WinForms, WebView2 (Edge), Scintilla.NET editor.

Injected JS hooks, WebView2 and the editor generate events. If-else blocks convert them to Selenium code. Optimizer squashes multiple events into single commands (e.g., calendar clicks → text input), uses heuristics to improve DOM addressing (xpath, id, element).

Two linear lists store events and code—no ASTs. Mid-session manual edits desync lists, block optimizer. Workaround: only edit scripts at the end of recording.

2025-03: Shipped the first iteration. Began work on key optimization: bypass the browser, grab data files directly.

2025-04: Abandoned project. Left the firm.