brbndon Swift package module author
Work in the active workspace package (the consumer's Package.swift), not AppleDevelopmentFoundation's archived package unless the user explicitly requests it.
Confirm two plausible consumers and a non-overlapping responsibility. Check dependency direction, define minimal products/targets, keep public APIs documented and small, create focused tests and generic example use, then update the dependency graph.
Inputs: proposed module responsibility and consumers. Output: a scoped module implementation in the consumer package and package-wide verification. Stop at a plan when implementation was not requested.