I built pyrift: a Python tool that catches runtime bugs linters can't see

The problem Every Python developer has hit a bug that: Passes all linting checks Passes all type checking Only appears at runtime, often in production These are not syntax errors. They are not CVEs. They are silent behaviour differences — code that runs without errors but produces wrong results, leaks resources, or crashes only in certain environments. I got frustrated with this pattern while working on CPython contributions and maintaining a PyPy review toolkit. So I built pyri