Three days writing a 4-page decision-dense doc, then agents implement it all
lucasmeijer · x · 2026-09-15
lucasmeijer spent three days writing a 4-page doc he calls the most decision-dense thing he's ever produced, codifying every decision he cares about in his semi-coding-agent rewrite, with precise desired outcomes and reasonable granularity on how to achieve them. He then has agents implement every part and is curious whether he'll like the result — an interesting experiment in spec-driven agent development.
Related event: Dev spends three days on 4-page decision doc for agent rewrite(2 posts)→
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