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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Debugging a Clustering Algorithm From an Academic Paper
A user and Claude implement a clustering algorithm from an academic paper in C++, then hunt down a string of real compiler errors together, line by line.
Hunting memory bugs in a borrow-checker-without-types compiler
Claude audits an experimental Zig borrow-checker, tracing a double-free through nested destructuring and five other subtle provenance bugs with exact triggers.
Synthesizing Sorting Networks With Disjunctive ASP
Claude writes a sorting-network synthesizer using disjunctive answer-set programming, catches its own logic bug, and verifies results by brute force.
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.