Apologies for the delay in reviewing this request, CodeChecker clearly needs classic confinement to work since it is designed to integrate with existing toolchains etc on the host machine and launch arbitrary binaries as part of this. As this is part of the software development workflow, this fits in with the Known Categories for Classic Confinement in Process for reviewing classic confinement snaps as this is in the same realm as Compilers, IDEs etc.
The requirements for classic confinement are therefore understood - @advocacy could you please perform publisher vetting?