| 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/bundle | Package bundle implements bundle loading. |
| github.com/open-policy-agent/opa/storage | Package storage exposes the policy engine's storage layer. |
| github.com/open-policy-agent/opa/util | Package util provides generic utilities used throughout the policy engine. |