cmbant

Triage unresolved or multi-cause CAMB accuracy failures where the failing mechanism has not yet been isolated. Use for ambiguous run_tests.py failures, check_accuracy instability, or unexplained step-size and switch sensitivity. Not for well-scoped bug fixes…

Use when comparing CAMB outputs against a local CLASS/classy install on Unix-like systems. Documents how to install the latest released CLASS version, report that version, and run the CLASS binary or Python wrapper.