Legacy
Production Traffic Is the Spec
Legacy code has no documentation. No tests either. And yet it's running right now. A month of well-recorded logs is the spec — build Hurl integration tests that capture the current behavior from production traffic, and you can pin down what the legacy does and lay a safety net for refactoring without reading a single line of code.
Building Agent-Operable Systems
60–80% of Fortune 500 IT budgets go to guarding locked legacy. Because they can't open it. The real meaning of the AI bubble is not smarter models — it is that locked corporate memory is becoming reachable.
tsma -- Regression Defense Line for Legacy Code
A CLI tool that indexes every function, detects test presence, measures coverage, and gives precise feedback to LLM agents. One command builds a regression defense line around legacy code.