hypothesis-driven-debugging

Debug F# compiler test failures by creating a minimal reproduction, formulating at least three competing hypotheses, and verifying fixes through targeted tests. Re-run builds and tests after each change to ensure no regressions are introduced.

Hypothesis-driven debugging is a structured workflow to isolate root causes by testing multiple competing hypotheses against a minimal reproduction. Use it for resolving test failures, build errors, and unexpected runtime behavior in the F# compiler codebase.

Create a minimal reproduction for an F# build error by isolating the specific code triggering the failure. Formulate competing hypotheses, add instrumentation to verify them, and run targeted tests to confirm the root cause.

Yes, it works for unexpected runtime behavior in F# tooling. The workflow guides you to reproduce the issue minimally, test three competing hypotheses, and mandate re-running builds and tests after changes to rigorously verify the fix.

The best way to verify fixes without introducing regressions is to enforce a structured workflow of re-running builds and tests after each change. Confirm or rule out hypotheses using targeted tests and instrumentation on a minimal reproduction.