Engineer's data: 11x more merged PRs per month at AI-native Tano vs pre-AI PostHog
bibryam · x · 2026-11-08
The Pragmatic Engineer published the winning essay ($10,000 prize, 125 submissions) of its essay challenge: engineer Neil Kakkar compares his own output at pre-AI PostHog (3.7 years) vs AI-native Tano (8 months).
- Monthly merged PRs at Tano were 11x those at PostHog (24 projects in 8 months vs 17 in 3.7 years)
- His chart quantifies flagship work at each: at Tano, an affiliate platform load-tested at 1,000 req/s, a workflow orchestration engine with 97K+ AI-run creator collaborations, a single cutover migrating 13,345 partners
- The workflow changed too: broader ownership, parallel agents, fewer human reviews
- The cost: more context switching and less shared knowledge
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