SkillZip Pro compresses skill bundles across files instead of flattening them, cutting 38% of bundle tokens with no quality loss

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Production agent skills are directory bundles where only the root loads at activation and references, schemas, scripts and nested subskills load on demand, so compressing the root misses most of the cost while flattening destroys progressive-loading boundaries. SkillZip Pro compresses across files, dropping content a reference already receives from the root or an environment contract, while preserving routing so every required file and callable entry stays reachable. On a production content-moderation skill it removes 38% of bundle tokens and 10.4% of end-to-end per-run tokens with no quality loss, whereas an unprotected 71% compression setting loses up to 26 accuracy points to one-sided false positives.