# Internal package inventory

Public facades and their contracts are defined in Go declarations and GoDoc.
The [runtime consumer guide](../consumers/runtime-version.md) covers application
usage, and the [CLI contract](../cli.md) covers command behavior.

Implemented internal packages:

- `internal/runtimeinfo` holds the injected version value and selects the
  executable's main-module version when no injected value is present.
- `internal/versioncontract` names the linker symbol shared with the future
  release builder.
- `internal/apicheck` checks compiled exports with `go/types` and checks import
  direction. Run it with `go run ./internal/apicheck` from the repository root.

The executable currently imports only the runtime facade. Release orchestration,
process execution, build, Git, and Gitea implementation packages are introduced
as their responsibilities are implemented.