  This work introduces the software tool Comprehensive Particle Identification
(CPID). It is a modular approach to combined PID for future Higgs factories and
implemented in the Key4hep framework. Its structure is explained, the current
module library laid out and initial performance measures for the ILD detector
as an example presented. A basic run of CPID works already as well as the
default full-simulation ILD PID reconstruction, but allows for an easy and
convenient addition of more PID observables, improving PID performance in
future analyses and high-level reconstruction, such as strange tagging.
