referenceJune 13, 2026· 3 min read

How to use CFLAG and CCHECKBAD: a memory for wrong answers

CFLAG records a known-bad answer in the negative cache; CCHECKBAD catches every paraphrase of the question that would reproduce it.

Flag a hallucinated or harmful answer once, and Crowkis inoculates against every reworded version of the question that would regenerate it.

crowkis cli

> CFLAG "is feature X free?" "Yes, totally free forever." REASON "hallucinated - it's paid"
OK

> CCHECKBAD "does feature X cost anything?"
1) "match: is feature X free?"
2) "reason: hallucinated - it's paid"

The negative cache is tenant-scoped, so one team's correction never leaks into another's traffic.