Claude autonomously coded for 16 hours straight and shipped a perfect implementation
Atlan_ · reddit · 2026-10-15
A developer describes his workflow: prototyping click-dummies in Claude artifacts, debating specs, then letting Claude (Sonnet 5.5 Ultracode) run autonomously.
A previous run built for 12-14 hours and came back with a perfect implementation; the current one has been running for 16 hours, testing itself and hunting for issues. 'We really live in the future,' he writes.
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