A quote attributed to Claude Code's Boris Cherny: "Anthropic writes none of its code by hand"

Skaly_Bull's article opens with a claim: that Boris Cherny, an engineer on Claude Code at Anthropic, said on stage, "Anthropic writes none of its code by hand at the company." The article uses that line as the premise for a four-level taxonomy, prompting, loop, memory, graph, harness, arguing that a single prompt is "level zero" and that everything durable happens above it. Neither the venue nor the date of Cherny's quoted remark is independently corroborated; this record rests on Skaly_Bull's own account, and Skaly_Bull is not a voice this lane has an established track record with.

Why it matters: treat the taxonomy as a useful frame and the Cherny line as a claim, not a confirmed fact. If accurate, it is a specific, named data point for an argument this lane has tracked under vaguer framing for weeks, that the labs building these tools are already running their own work close to lights-out.