Dev ships 3-month project in 2.5 weeks by letting Codex self-verify in a loop
kmeanskaran · x · 2026-10-28
A developer describes building an enterprise agent with GPT-6.1 Sol + Codex: Codex autonomously coded, debugged, tested, verified and fixed in a loop until expectations were met, and the developer only read each run's final summary before making decisions.
- A 3-month project was delivered to QA in 2.5 weeks.
- He predicts that by 2027 building AI agents won't be a hot skill — Skills.md files are now enough to write an entire application.
- The exhausting part is production verification. He plans to write a full article this weekend.
More from coding & agent
- 41 leftover git worktrees eat 45GB: fix it with a cleanup rule in AGENTS.md — dotey · 2026-10-28
- One prompt fixes AI-generated duplicate code: ask it to dedupe and simplify the architecture — facontidavide · 2026-10-28
- 10 open-source repos that rewrite prompts and evolve agent workflows — victor_explore · 2026-10-28
- The Trinity: recursive self-improvement for multimodal agents via capability trees — Weidong Tang · 2026-10-28
- Lead Claude kills a subagent over a bad figure, cites its 475k-token context — Sauers_ · 2026-10-28
- Having agent teams build dashboards of their own progress is a surprisingly good workflow — francesc · 2026-10-28