| Eff | Effectful.Internal.Monad, Effectful |
| Effect | Effectful.Internal.Effect, Effectful |
| EffectHandler | Effectful.Internal.Monad, Effectful.Dispatch.Dynamic |
| EffectRep | Effectful.Internal.Env, Effectful.Dispatch.Static.Primitive |
| Empty | Effectful.Internal.Monad, Effectful.NonDet |
| empty | Effectful.NonDet |
| emptyEff | Effectful.NonDet |
| emptyEnv | Effectful.Internal.Env, Effectful.Dispatch.Static.Primitive |
| Env | |
| 1 (Type/Class) | Effectful.Internal.Env, Effectful.Dispatch.Static.Primitive |
| 2 (Data Constructor) | Effectful.Internal.Env |
| envOffset | Effectful.Internal.Env |
| envRefs | Effectful.Internal.Env |
| envStorage | Effectful.Internal.Env |
| Ephemeral | Effectful.Internal.Unlift, Effectful.Internal.Monad, Effectful |
| ephemeralConcUnlift | Effectful.Internal.Unlift |
| eqThreadId | Effectful.Internal.Utils |
| Error | |
| 1 (Type/Class) | Effectful.Error.Static |
| 2 (Type/Class) | Effectful.Error.Dynamic |
| evalState | |
| 1 (Function) | Effectful.State.Static.Local |
| 2 (Function) | Effectful.State.Static.Shared |
| evalStateLocal | Effectful.State.Dynamic |
| evalStateMVar | Effectful.State.Static.Shared |
| evalStateShared | Effectful.State.Dynamic |
| evalStaticRep | Effectful.Internal.Monad, Effectful.Dispatch.Static |
| execState | |
| 1 (Function) | Effectful.State.Static.Local |
| 2 (Function) | Effectful.State.Static.Shared |
| execStateLocal | Effectful.State.Dynamic |
| execStateMVar | Effectful.State.Static.Shared |
| execStateShared | Effectful.State.Dynamic |
| execStaticRep | Effectful.Internal.Monad, Effectful.Dispatch.Static |
| execWriter | |
| 1 (Function) | Effectful.Writer.Static.Local |
| 2 (Function) | Effectful.Writer.Static.Shared |
| execWriterLocal | Effectful.Writer.Dynamic |
| execWriterShared | Effectful.Writer.Dynamic |