[fitsbits] Automated FITS correction tools?

[Rob Seaman]

Let's say one has some* real world FITS files.  One may define "real world FITS" as files that are non-conformant in diverse ways with the FITS standard.

What tools exist to "correct" the files to bring them into conformance?

What strategies do people, projects and institutions use to enforce basic** quality assurance ex post facto?

Rob
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* about 2 x 10^7 FITS HDUs of ~100 "flavors" produced by ~20 institutional entities reaching back 17 years

** meaning fundamental representational issues, as opposed to vetting against specific project requirements - requirements that assume those fundamentals are "somebody else's problem"