Auditing grok-build's Silent Repository Upload Code
Claude reverse-engineers xAI's coding agent after reports it exfiltrated repositories, tracing a server kill switch and vestigial upload code in the source.
Claude★ Editor’s pick
#debugging
25 entries with this tag.
Auditing the Physics of an AI-Built Power Amplifier Simulator
A detailed physics audit turns a React power-amplifier simulator into a self-consistent device model, with sharp back-and-forth catching real math errors.
Claude
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.
Claude
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.
Claude
Claude Code Installation Guide for Windows 11: Setting Up with WSL2
A step-by-step walkthrough for installing Claude Code on Windows 11 via WSL2, covering Node.js setup, npm configuration, authentication, and troubleshooting.
ClaudeArtifact
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.
Claude
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.
Claude
Do ad-blocking firewall rules break any site functionality
A user shares firewall rules blocking ad and analytics trackers, asking whether a slightly altered New York Times homepage signals any real functional loss.
Claude
Four failed fixes before a QR code app finally scans
Building a QR generator, Claude tries a broken API, a second API, then fake canvas pixels — before switching to a real QR library that scanners can read.
Claude
Hunting a heap-spraying concurrency bug in Linux sound code
Claude hunts for a concurrency bug in a Linux kernel sound driver that could enable heap spraying, and proposes a locking fix around the vulnerable allocation.
Claude
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.
Claude
Ranking an app s top errors from live observability data
Claude queries a connected observability server for the worst errors in a running app, then spots that three services share an identical failure count.
Claude
Reverse-engineering Henle's engraving style in Dorico
A back-and-forth on matching Henle's engraving look in Dorico 6, covering slur height, beam spacing, and a font mistake the user catches and corrects.
Claude
Reverse-engineering how a PDF parser's OCR fallback actually works
Claude clones a PDF parser, runs it with and without OCR, then reads the source to explain exactly how text extraction and OCR triage actually work.
Claude
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.
Claude★ Editor’s pick
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.
Claude★ Editor’s pick
Why a local model server hangs at 100 percent CPU on launch
A server spins forever when started as a subprocess but runs fine from a terminal; the cause is a stripped environment breaking new cache-path resolution code.
Claude
Wrangling a Browser Agent to Chart a Benchmark Leaderboard
Claude uses a browser agent to open a benchmark leaderboard, then iterates through several failed attempts to inject percentage labels onto a live chart.
Claude
Auditing an AI-hallucinated Turbo Pascal disassembly
The user asks the assistant to verify a critique of an earlier AI disassembly of Turbo Pascal, confirming roughly half the annotated code was pure fabrication.
Claude★ Editor’s pick
Building a 3D dog that uses wave physics to fetch a pool ball
The user iteratively debugs a Three.js scene where a dog creates ripples to nudge a ball across a pool, fixing physics and realism issues along the way.
Claude
Building a Whack-a-Mole Game From Canvas to Three.js 3D
The user asks for a whack-a-mole game and pushes it through several rounds of refinement, ending in a full Three.js 3D version with lighting and raycasting.
Claude
Building the Thirty Meter Telescope's 492-Segment Mirror in D3.js
The user walks Claude through a step-by-step D3.js build of the Thirty Meter Telescope's 492-hexagon mirror, debugging tricky grid geometry and numbering.
Claude
Reverse-engineering Game Boy Advance assembly to C
The user pastes raw ARMv7 Thumb assembly from a Game Boy Advance binary, and Claude reverse-engineers it into readable C code and a plausible struct layout.
Claude
Swapping MicroPython for full CPython in a WASI sandbox
The user tests whether a WASI Python sandbox can swap MicroPython for full CPython, verifying startup cost, fuel limits, and a tricky zip-stdlib bug fix.
Claude