Chasing a phantom padding bug through a C++ tokenizer
A long hunt for pad tokens appearing at the start of every chunk, ending in a switch to left-padding so the last token lands where embeddings want it.
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Tracing runaway memory in C++ to an ONNX arena allocator
A developer watches memory climb on every embeddings call; the diagnosis finds no classic leak but two structural causes, and lands on a two-line fix.
Building and debugging a YAML/Markdown preview tool for a site
Claude clones a real site's homepage code and builds a YAML/Markdown preview tool matching its rendering, then fixes a date-parsing bug and matches its colors.
Checking Moebius's code and weights, then porting to WebGPU
The user pressure-tests an AI model's README claims about released weights, then gets a sharp technical case for porting it to run in a browser.
Debugging a two-stage BJT amplifier optimizer's physics
A long session fixing a broken circuit-optimizer artifact, tracing bogus gain and stability numbers back to a missing Miller-effect term in the math.