diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 00830f9..852ba86 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -35,6 +35,9 @@ jobs:
       - name: Lint affected source files
         run: pnpm run lint --filter=[origin/${{github.base_ref}}]
 
+      - name: Check for unused code
+        run: pnpm run unused --no-config-hints
+
       - name: Get current git commit hash
         id: get-git-commit-hash
         run: |
diff --git a/knip.ts b/knip.ts
index 4114aeb..3580218 100644
--- a/knip.ts
+++ b/knip.ts
@@ -4,11 +4,16 @@ type RecordValues<T> = T extends Record<any, infer U> ? U : never;
 
 type WorkspaceProjectConfig = RecordValues<Required<KnipConfig["workspaces"]>>;
 
-const defaultWorkspaceProjectConfig: WorkspaceProjectConfig = {
+const defaultWorkspaceProjectConfig: WorkspaceProjectConfig & {
+  entry: string[];
+  ignoreDependencies: string[];
+  project: string[];
+} = {
   entry: [
     "{index,cli,main}.{js,cjs,mjs,jsx,ts,cts,mts,tsx}",
     "src/{index,cli,main}.{js,cjs,mjs,jsx,ts,cts,mts,tsx}",
   ],
+  ignoreDependencies: ["ts-loader", "tslib"],
   project: [
     "**/*.{js,cjs,mjs,jsx,ts,cts,mts,tsx}!",
     "!jest.config.stryker.mjs",
@@ -17,31 +22,50 @@ const defaultWorkspaceProjectConfig: WorkspaceProjectConfig = {
 };
 
 export default {
+  commitlint: {
+    config: "config/commitlint/commitlint.config.js",
+  },
+  ignoreWorkspaces: ["packages/docs/services/inversify-site"],
   workspaces: {
     ".": {
-      entry: ["config/commitlint/commitlint.config.js"],
+      entry: [],
+      ignoreDependencies: defaultWorkspaceProjectConfig.ignoreDependencies,
       project: [],
     },
     "packages/container/libraries/*": defaultWorkspaceProjectConfig,
     "packages/container/tools/*": defaultWorkspaceProjectConfig,
     "packages/docs/services/*": defaultWorkspaceProjectConfig,
+    "packages/docs/tools/*": defaultWorkspaceProjectConfig,
     "packages/docs/tools/inversify-code-examples": {
       entry: ["src/examples/**/*.ts", "src/scripts/generateExamples.mts"],
+      ignoreDependencies: [
+        ...defaultWorkspaceProjectConfig.ignoreDependencies,
+        "@docusaurus/Link",
+        "@docusaurus/plugin-content-docs",
+        "@docusaurus/useDocusaurusContext",
+        "@theme/*",
+      ],
       project: defaultWorkspaceProjectConfig.project,
     },
-    "packages/docs/tools/*": defaultWorkspaceProjectConfig,
     "packages/foundation/libraries/*": defaultWorkspaceProjectConfig,
     "packages/foundation/tools/*": defaultWorkspaceProjectConfig,
+    "packages/foundation/tools/prettier-config": {
+      entry: ["{cjs,esm}/index.{js,d.ts}"],
+      ignoreDependencies: defaultWorkspaceProjectConfig.ignoreDependencies,
+      project: defaultWorkspaceProjectConfig.project,
+    },
     "packages/container/tools/e2e-tests": {
       entry: [
+        "config/*.mjs",
         "src/*/parameters/*.ts",
         "src/*/step-definitions/*.ts",
         "src/app/hooks/*.ts",
       ],
-      project: [
-        ...(defaultWorkspaceProjectConfig.project as string[]),
-        "!config/*",
+      ignoreDependencies: [
+        ...defaultWorkspaceProjectConfig.ignoreDependencies,
+        "ts-node",
       ],
+      project: [...defaultWorkspaceProjectConfig.project, "!config/*"],
     },
   },
 } satisfies KnipConfig;
diff --git a/package.json b/package.json
index 8323efa..8c94a7a 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,6 @@
     "build": "turbo run build",
     "commit": "commit",
     "format": "turbo run format",
-    "knip": "knip",
     "lint": "turbo run lint",
     "prepare": "husky && turbo telemetry disable",
     "prerelease": "pnpm run build",
@@ -49,6 +48,7 @@
     "test": "turbo run test",
     "test:e2e": "turbo run test:e2e",
     "test:e2e:cjs": "turbo run test:e2e:cjs",
-    "test:e2e:esm": "turbo run test:e2e:esm"
+    "test:e2e:esm": "turbo run test:e2e:esm",
+    "unused": "knip"
   }
 }
diff --git a/packages/container/libraries/container/src/error/models/InversifyContainerError.ts b/packages/container/libraries/container/src/error/models/InversifyContainerError.ts
index f22dfef..eea7d5b 100644
--- a/packages/container/libraries/container/src/error/models/InversifyContainerError.ts
+++ b/packages/container/libraries/container/src/error/models/InversifyContainerError.ts
@@ -32,6 +32,7 @@ export class InversifyContainerError extends Error {
     value: unknown,
     kind: InversifyContainerErrorKind,
   ): value is InversifyContainerError {
+    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
     return InversifyContainerError.is(value) && value.kind === kind;
   }
 }
diff --git a/packages/container/libraries/container/src/error/models/InversifyContainerErrorKind.ts b/packages/container/libraries/container/src/error/models/InversifyContainerErrorKind.ts
index 5b55980..d649ec1 100644
--- a/packages/container/libraries/container/src/error/models/InversifyContainerErrorKind.ts
+++ b/packages/container/libraries/container/src/error/models/InversifyContainerErrorKind.ts
@@ -1,4 +1,3 @@
 export enum InversifyContainerErrorKind {
   invalidOperation,
-  unknown,
 }
diff --git a/packages/container/libraries/strongly-typed/package.json b/packages/container/libraries/strongly-typed/package.json
index 9e55f16..9bafaf5 100644
--- a/packages/container/libraries/strongly-typed/package.json
+++ b/packages/container/libraries/strongly-typed/package.json
@@ -10,6 +10,7 @@
     "eslint": "9.18.0",
     "jest": "29.7.0",
     "prettier": "3.4.2",
+    "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
     "rollup": "4.30.1",
     "ts-loader": "9.5.2",
diff --git a/packages/docs/services/inversify-site/package.json b/packages/docs/services/inversify-site/package.json
index 22c3a3f..28feed4 100644
--- a/packages/docs/services/inversify-site/package.json
+++ b/packages/docs/services/inversify-site/package.json
@@ -18,6 +18,7 @@
   "devDependencies": {
     "@docusaurus/module-type-aliases": "3.7.0",
     "@docusaurus/types": "3.7.0",
+    "@eslint/js": "9.18.0",
     "@types/react": "18.3.18",
     "eslint": "9.18.0",
     "eslint-plugin-prettier": "5.2.3",
diff --git a/packages/docs/tools/inversify-code-examples/package.json b/packages/docs/tools/inversify-code-examples/package.json
index 7c3a5c1..4eccc88 100644
--- a/packages/docs/tools/inversify-code-examples/package.json
+++ b/packages/docs/tools/inversify-code-examples/package.json
@@ -18,6 +18,7 @@
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
     "ts-jest": "29.2.5",
+    "tslib": "2.8.1",
     "typescript": "5.7.3"
   },
   "homepage": "https://inversify.io",
diff --git a/packages/foundation/tools/typescript-config/tsconfig.base.json b/packages/foundation/tools/typescript-config/tsconfig.base.json
index ad3d83a..e09a24c 100644
--- a/packages/foundation/tools/typescript-config/tsconfig.base.json
+++ b/packages/foundation/tools/typescript-config/tsconfig.base.json
@@ -7,6 +7,7 @@
     "esModuleInterop": true,
     "exactOptionalPropertyTypes": true,
     "forceConsistentCasingInFileNames": true,
+    "importHelpers": true,
     "lib": ["ES2022"],
     "noFallthroughCasesInSwitch": true,
     "noImplicitOverride": true,