| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/open-policy-agent/opa/storage | Package storage exposes the policy engine's storage layer. |
| github.com/open-policy-agent/opa/version | Deprecated: This package is intended for older projects transitioning from OPA v0.x and will remain for the lifetime of OPA v1.x, but its use is not recommended. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |