- Skylos: when the repository already gates dead code with Skylos or
the repository uses it deliberately for cleanup. Load
skylos; preserve the existing gate rather than substituting another scanner. - deadcode: when the question is "is this name still used?".
Run on changed files in CI; review
--fixdiffs by hand. - pyscn: when the question is "is this branch reachable?", "is
this block a clone?", or "is this module getting too coupled?". Run weekly on
main; treat findings as a worklist, not a build failure. - Pyinstrument: when a request or test is slow and the question
is "where does the time go?". Use to find hot paths; use
pytest-benchmarkto regression-test them.