diff --git a/Documentation/Manual.md b/Documentation/Manual.md
index e79cf6ef..d05d328c 100644
--- a/Documentation/Manual.md
+++ b/Documentation/Manual.md
@@ -42,6 +42,8 @@ import SafeDI
 
 The `additionalDirectoriesToInclude` parameter specifies folders outside of your module that SafeDI will scan for Swift source files. Paths must be relative to the executing directory (the directory containing the `.xcodeproj` for Xcode integrations). Use this parameter to specify the paths to dependent modules’ source directories, since Xcode project plugins cannot discover these automatically. You can see [an example of this configuration](../Examples/ExampleMultiProjectIntegration/ExampleMultiProjectIntegration/SafeDIConfiguration.swift) in the [ExampleMultiProjectIntegration](../Examples/ExampleMultiProjectIntegration) project.
 
+> **Note:** `additionalDirectoriesToInclude` is only honored by the SPM build-tool plugin. The Bazel and Tuist integrations enumerate every input up front (Bazel via declared rule inputs; Tuist via the build phase's `inputPaths`), so files reached only through `additionalDirectoriesToInclude` won't be visible to SafeDITool at build time and won't trigger incremental rebuilds. Under those integrations, list every Swift source you want SafeDI to see directly via the build target.
+
 ##### Installing the prebuilt SafeDITool binary
 
 If you see a build warning that starts with **"SafeDI's build-tool plugin is falling back to a regex-based output scanner..."** — installing the prebuilt tool fixes it.
@@ -439,7 +441,7 @@ public struct FeedView: Instantiable {
 **Parameters:**
 
 - `additionalImportedModules`: Module names to import in the generated dependency tree, in addition to the import statements found in files that declare `@Instantiable` types. Default: `[]`.
-- `additionalDirectoriesToInclude`: Directories containing Swift files to include, relative to the executing directory. This parameter only applies to SafeDI repos that utilize the SPM plugin via an Xcode project. Default: `[]`.
+- `additionalDirectoriesToInclude`: Directories containing Swift files to include, relative to the executing directory. Only honored by the SPM build-tool plugin. The Bazel and Tuist integrations enumerate inputs up front and ignore this parameter — list every Swift source via the build target itself instead. Default: `[]`.
 - `additionalMocksToGenerate`: Type names from dependent modules to generate `mock()` methods for in this module. The types must be `@Instantiable` in their home module. See [Cross-module mock generation](#cross-module-mock-generation). Default: `[]`.
 - `mockConditionalCompilation`: The conditional compilation flag to wrap generated mock code in (e.g. `"DEBUG"`). Set to `nil` to generate mocks without conditional compilation. Default: `"DEBUG"`.
 
diff --git a/Sources/SafeDI/Decorators/SafeDIConfiguration.swift b/Sources/SafeDI/Decorators/SafeDIConfiguration.swift
index 89b099bc..4db2d8c6 100644
--- a/Sources/SafeDI/Decorators/SafeDIConfiguration.swift
+++ b/Sources/SafeDI/Decorators/SafeDIConfiguration.swift
@@ -29,7 +29,7 @@
 ///
 /// - Parameters:
 ///   - additionalImportedModules: Module names to import in the generated dependency tree, in addition to the import statements found in files that declare `@Instantiable` types.
-///   - additionalDirectoriesToInclude: Directories containing Swift files to include, relative to the executing directory. This property only applies to SafeDI repos that utilize the SPM plugin via an Xcode project.
+///   - additionalDirectoriesToInclude: Directories containing Swift files to include, relative to the executing directory. Only honored by the SPM build-tool plugin. The Bazel and Tuist integrations enumerate inputs up front and therefore ignore this parameter — list every Swift source via the build target itself instead.
 ///   - additionalMocksToGenerate: Type names from dependent modules to generate `mock()` methods for in this module. The types must be decorated with `@Instantiable` in their home module. See the "Cross-module mock generation" section of the manual.
 ///   - mockConditionalCompilation: The conditional compilation flag to wrap generated mock code in (e.g. `"DEBUG"`). Set to `nil` to generate mocks without conditional compilation.
 ///