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Notes from production.

What our teams learn shipping AI and product systems that have to survive contact with real users, real data and real audits. No thought leadership — field notes.

All Applied AI Engineering Modernisation Teams & delivery
Featured Modernisation · 4 min

Characterisation tests: the seatbelt you put on before touching legacy code

Pin what legacy code actually does — bugs included — before you refactor. How characterisation tests enable safe strangler migrations, and when to delete them.

HT Hazesoft Team Jun 2026
Modernisation · 4 min

Strangling a legacy monolith without stopping the roadmap

Two-year rewrites die of their own structure. The strangler pattern — wrap, route, extract — ships value every sprint and keeps every step reversible.

May 2026

Field notes, quarterly.

One email every quarter with what we learned in production. No funnels, no gated PDFs.

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