Abstract: This disclosure describes a schema modification system that, as part of an inter-network facilitation system, can intelligently generate and update payload schemas for maintaining compatibility across changing network components. For example, the disclosed systems utilize custom tooling to detect changes in component versions and to update payload schemas to translate digital payloads between components that require different payload formats (e.g., due to an update to one component or another). In some cases, the disclosed systems can utilize a code generator to generate a payload conversion code from a payload schema and can implement the payload conversion code to convert a digital payload from a source format to a target format (e.g., to pass from a source component to a target component). The disclosed systems can also utilize schema annotations that accompany a payload schema to perform various functions, including removing sensitive information and identifying third-party systems.