So, these would essentially both be my plugin... why would it be added twice... with different GAV's... is this typical? doesn't feel typical

com.xenoterracide.gradle.semver:com.xenoterracide.gradle.semver.gradle.plugin:0.10.0=classpath
com.xenoterracide:gradle-semver:0.10.0=classpath

https://github.com/xenoterracide/gradle-semver/blob/main/build.gradle.kts

It is. First one is the "plugin marker" that allows resolving plugin from just their plugin ID: https://docs.gradle.org/current/userguide/plugins.html#sec:plugin_markers

Cool, then it's not something I need to fix

an artifact may have multiple plugins, and a plugin may have multiple markers