diff --git a/README.md b/README.md
index 4e26431..e177939 100644
--- a/README.md
+++ b/README.md
@@ -264,17 +264,15 @@ allow users to perform write operations on an object collection.
  * @template Q - Parsed URL query object
  *
  * @extends IAbstractMangoFinder
+ * @extends IAbstractMangoRepositoryBase
  */
 export interface IAbstractMangoRepository<
   E extends ObjectPlain = ObjectUnknown,
   U extends string = DUID,
   P extends MangoSearchParams<E> = MangoSearchParams<E>,
   Q extends MangoParsedUrlQuery<E> = MangoParsedUrlQuery<E>
-> extends IAbstractMangoFinder<E, U, P, Q> {
-  readonly cache: MangoCacheRepo<E>
-  readonly options: MangoRepoOptions<E, U>
-  readonly validator: IMangoValidator<E>
-
+> extends Omit<IAbstractMangoFinder<E, U, P, Q>, 'cache' | 'options'>,
+    IAbstractMangoRepositoryBase<E, U> {
   clear(): OrPromise<boolean>
   create(dto: CreateEntityDTO<E>): OrPromise<E>
   delete(uid?: OneOrMany<UID>, should_exist?: boolean): OrPromise<UID[]>
@@ -282,6 +280,26 @@ export interface IAbstractMangoRepository<
   setCache(collection?: E[]): OrPromise<MangoCacheRepo<E>>
   save(dto?: OneOrMany<EntityDTO<E>>): OrPromise<E[]>
 }
+
+/**
+ * Base `AbstractMangoRepository` class interface.
+ *
+ * Used to define properties of `MangoRepository`, `MangoRepositoryAsync`,
+ * and possible derivatives.
+ *
+ * @template E - Entity
+ * @template U - Name of entity uid field
+ *
+ * @extends IAbstractMangoFinderBase
+ */
+export interface IAbstractMangoRepositoryBase<
+  E extends ObjectPlain = ObjectUnknown,
+  U extends string = DUID
+> extends IAbstractMangoFinderBase<E, U> {
+  readonly cache: MangoCacheRepo<E>
+  readonly options: MangoRepoOptions<E, U>
+  readonly validator: IMangoValidator<E>
+}
 ```
 
 #### Modeling Entities
diff --git a/src/interfaces/abstract-mango-repo-base.interface.ts b/src/interfaces/abstract-mango-repo-base.interface.ts
new file mode 100644
index 0000000..222d5e0
--- /dev/null
+++ b/src/interfaces/abstract-mango-repo-base.interface.ts
@@ -0,0 +1,31 @@
+import type { DUID } from '@/types'
+import type { ObjectPlain, ObjectUnknown } from '@flex-development/tutils'
+import type { IAbstractMangoFinderBase } from './abstract-mango-finder-base.interface'
+import type { MangoCacheRepo } from './mango-cache-repo.interface'
+import type { MangoRepoOptions } from './mango-repo-options.interface'
+import type { IMangoValidator } from './mango-validator.interface'
+
+/**
+ * @file Interface - IAbstractMangoRepositoryBase
+ * @module interfaces/AbstractMangoRepositoryBase
+ */
+
+/**
+ * Base `AbstractMangoRepository` class interface.
+ *
+ * Used to define properties of `MangoRepository`, `MangoRepositoryAsync`,
+ * and possible derivatives.
+ *
+ * @template E - Entity
+ * @template U - Name of entity uid field
+ *
+ * @extends IAbstractMangoFinderBase
+ */
+export interface IAbstractMangoRepositoryBase<
+  E extends ObjectPlain = ObjectUnknown,
+  U extends string = DUID
+> extends IAbstractMangoFinderBase<E, U> {
+  readonly cache: MangoCacheRepo<E>
+  readonly options: MangoRepoOptions<E, U>
+  readonly validator: IMangoValidator<E>
+}
diff --git a/src/interfaces/abstract-mango-repo.interface.ts b/src/interfaces/abstract-mango-repo.interface.ts
index 543aa71..e6f4c41 100644
--- a/src/interfaces/abstract-mango-repo.interface.ts
+++ b/src/interfaces/abstract-mango-repo.interface.ts
@@ -7,9 +7,8 @@ import type {
   OrPromise
 } from '@flex-development/tutils'
 import type { IAbstractMangoFinder } from './abstract-mango-finder.interface'
+import type { IAbstractMangoRepositoryBase } from './abstract-mango-repo-base.interface'
 import type { MangoCacheRepo } from './mango-cache-repo.interface'
-import type { MangoRepoOptions } from './mango-repo-options.interface'
-import type { IMangoValidator } from './mango-validator.interface'
 
 /**
  * @file Interface - IAbstractMangoRepository
@@ -28,17 +27,15 @@ import type { IMangoValidator } from './mango-validator.interface'
  * @template Q - Parsed URL query object
  *
  * @extends IAbstractMangoFinder
+ * @extends IAbstractMangoRepositoryBase
  */
 export interface IAbstractMangoRepository<
   E extends ObjectPlain = ObjectUnknown,
   U extends string = DUID,
   P extends MangoSearchParams<E> = MangoSearchParams<E>,
   Q extends MangoParsedUrlQuery<E> = MangoParsedUrlQuery<E>
-> extends IAbstractMangoFinder<E, U, P, Q> {
-  readonly cache: MangoCacheRepo<E>
-  readonly options: MangoRepoOptions<E, U>
-  readonly validator: IMangoValidator<E>
-
+> extends Omit<IAbstractMangoFinder<E, U, P, Q>, 'cache' | 'options'>,
+    IAbstractMangoRepositoryBase<E, U> {
   clear(): OrPromise<boolean>
   create(dto: CreateEntityDTO<E>): OrPromise<E>
   delete(uid?: OneOrMany<UID>, should_exist?: boolean): OrPromise<UID[]>
diff --git a/src/interfaces/index.ts b/src/interfaces/index.ts
index 3d618f6..fd6bbc4 100644
--- a/src/interfaces/index.ts
+++ b/src/interfaces/index.ts
@@ -5,6 +5,7 @@
 
 export type { IAbstractMangoFinderBase } from './abstract-mango-finder-base.interface'
 export type { IAbstractMangoFinder } from './abstract-mango-finder.interface'
+export type { IAbstractMangoRepositoryBase } from './abstract-mango-repo-base.interface'
 export type { IAbstractMangoRepository } from './abstract-mango-repo.interface'
 export type { AccumulatorOperators } from './accumulator-operators.interface'
 export type { AggregationOperators } from './aggregation-operators.interface'
diff --git a/src/interfaces/mango-repo-async.interface.ts b/src/interfaces/mango-repo-async.interface.ts
index 6e85304..0c30d2e 100644
--- a/src/interfaces/mango-repo-async.interface.ts
+++ b/src/interfaces/mango-repo-async.interface.ts
@@ -5,6 +5,7 @@ import type {
   ObjectUnknown,
   OneOrMany
 } from '@flex-development/tutils'
+import { IAbstractMangoRepositoryBase } from './abstract-mango-repo-base.interface'
 import type { MangoCacheRepo } from './mango-cache-repo.interface'
 import type { IMangoFinderAsync } from './mango-finder-async.interface'
 
@@ -24,13 +25,15 @@ import type { IMangoFinderAsync } from './mango-finder-async.interface'
  * @template Q - Parsed URL query object
  *
  * @extends IMangoFinderAsync
+ * @extends IAbstractMangoRepositoryBase
  */
 export interface IMangoRepositoryAsync<
   E extends ObjectPlain = ObjectUnknown,
   U extends string = DUID,
   P extends MangoSearchParams<E> = MangoSearchParams<E>,
   Q extends MangoParsedUrlQuery<E> = MangoParsedUrlQuery<E>
-> extends IMangoFinderAsync<E, U, P, Q> {
+> extends Omit<IMangoFinderAsync<E, U, P, Q>, 'cache' | 'options'>,
+    IAbstractMangoRepositoryBase<E, U> {
   clear(): Promise<boolean>
   create(dto: CreateEntityDTO<E>): Promise<E>
   delete(uid?: OneOrMany<UID>, should_exist?: boolean): Promise<UID[]>
diff --git a/src/interfaces/mango-repo.interface.ts b/src/interfaces/mango-repo.interface.ts
index ad3cc0f..6381161 100644
--- a/src/interfaces/mango-repo.interface.ts
+++ b/src/interfaces/mango-repo.interface.ts
@@ -5,6 +5,7 @@ import type {
   ObjectUnknown,
   OneOrMany
 } from '@flex-development/tutils'
+import type { IAbstractMangoRepositoryBase } from './abstract-mango-repo-base.interface'
 import type { MangoCacheRepo } from './mango-cache-repo.interface'
 import type { IMangoFinder } from './mango-finder.interface'
 
@@ -24,13 +25,15 @@ import type { IMangoFinder } from './mango-finder.interface'
  * @template Q - Parsed URL query object
  *
  * @extends IMangoFinder
+ * @extends IAbstractMangoRepositoryBase
  */
 export interface IMangoRepository<
   E extends ObjectPlain = ObjectUnknown,
   U extends string = DUID,
   P extends MangoSearchParams<E> = MangoSearchParams<E>,
   Q extends MangoParsedUrlQuery<E> = MangoParsedUrlQuery<E>
-> extends IMangoFinder<E, U, P, Q> {
+> extends Omit<IMangoFinder<E, U, P, Q>, 'cache' | 'options'>,
+    IAbstractMangoRepositoryBase<E, U> {
   clear(): boolean
   create(dto: CreateEntityDTO<E>): E
   delete(uid?: OneOrMany<UID>, should_exist?: boolean): UID[]