diff --git a/lib/init-action.js b/lib/init-action.js
index aaa4836d7..5dad5fc06 100644
--- a/lib/init-action.js
+++ b/lib/init-action.js
@@ -86824,6 +86824,7 @@ async function initActionState({
     trapCaches,
     trapCacheDownloadTime,
     dependencyCachingEnabled: getCachingKind(dependencyCachingEnabled),
+    dependencyCachingRestoredKeys: [],
     extraQueryExclusions: [],
     overlayDatabaseMode: "none" /* None */,
     useOverlayDatabaseCaching: false,
@@ -90151,6 +90152,7 @@ exec ${goBinaryPath} "$@"`
         logger
       );
       dependencyCachingStatus = dependencyCachingResult.statusReport;
+      config.dependencyCachingRestoredKeys = dependencyCachingResult.restoredKeys;
     }
     if (await codeQlVersionAtLeast(codeql, "2.17.1")) {
     } else {
diff --git a/src/config-utils.test.ts b/src/config-utils.test.ts
index da58dd8b1..906336d26 100644
--- a/src/config-utils.test.ts
+++ b/src/config-utils.test.ts
@@ -200,12 +200,9 @@ test("load code quality config", async (t) => {
     );
 
     // And the config we expect it to result in
-    const expectedConfig: configUtils.Config = {
-      version: actionsUtil.getActionVersion(),
+    const expectedConfig = createTestConfig({
       analysisKinds: [AnalysisKind.CodeQuality],
       languages: [KnownLanguage.actions],
-      buildMode: undefined,
-      originalUserInput: {},
       // This gets set because we only have `AnalysisKind.CodeQuality`
       computedConfig: {
         "disable-default-queries": true,
@@ -219,14 +216,7 @@ test("load code quality config", async (t) => {
       debugMode: false,
       debugArtifactName: "",
       debugDatabaseName: "",
-      trapCaches: {},
-      trapCacheDownloadTime: 0,
-      dependencyCachingEnabled: CachingKind.None,
-      extraQueryExclusions: [],
-      overlayDatabaseMode: OverlayDatabaseMode.None,
-      useOverlayDatabaseCaching: false,
-      repositoryProperties: {},
-    };
+    });
 
     t.deepEqual(config, expectedConfig);
   });
@@ -507,9 +497,7 @@ test("load non-empty input", async (t) => {
     };
 
     // And the config we expect it to parse to
-    const expectedConfig: configUtils.Config = {
-      version: actionsUtil.getActionVersion(),
-      analysisKinds: [AnalysisKind.CodeScanning],
+    const expectedConfig = createTestConfig({
       languages: [KnownLanguage.javascript],
       buildMode: BuildMode.None,
       originalUserInput: userConfig,
@@ -521,14 +509,7 @@ test("load non-empty input", async (t) => {
       debugMode: false,
       debugArtifactName: "my-artifact",
       debugDatabaseName: "my-db",
-      trapCaches: {},
-      trapCacheDownloadTime: 0,
-      dependencyCachingEnabled: CachingKind.None,
-      extraQueryExclusions: [],
-      overlayDatabaseMode: OverlayDatabaseMode.None,
-      useOverlayDatabaseCaching: false,
-      repositoryProperties: {},
-    };
+    });
 
     const languagesInput = "javascript";
     const configFilePath = createConfigFile(inputFileContents, tempDir);
diff --git a/src/config-utils.ts b/src/config-utils.ts
index fa88d4b4a..03608fb1a 100644
--- a/src/config-utils.ts
+++ b/src/config-utils.ts
@@ -148,6 +148,9 @@ export interface Config {
   /** A value indicating how dependency caching should be used. */
   dependencyCachingEnabled: CachingKind;
 
+  /** The keys of caches that we restored, if any. */
+  dependencyCachingRestoredKeys: string[];
+
   /**
    * Extra query exclusions to append to the config.
    */
@@ -496,6 +499,7 @@ export async function initActionState(
     trapCaches,
     trapCacheDownloadTime,
     dependencyCachingEnabled: getCachingKind(dependencyCachingEnabled),
+    dependencyCachingRestoredKeys: [],
     extraQueryExclusions: [],
     overlayDatabaseMode: OverlayDatabaseMode.None,
     useOverlayDatabaseCaching: false,
diff --git a/src/init-action.ts b/src/init-action.ts
index 9f1c33e68..689ded2fc 100644
--- a/src/init-action.ts
+++ b/src/init-action.ts
@@ -586,6 +586,8 @@ async function run() {
         logger,
       );
       dependencyCachingStatus = dependencyCachingResult.statusReport;
+      config.dependencyCachingRestoredKeys =
+        dependencyCachingResult.restoredKeys;
     }
 
     // Suppress warnings about disabled Python library extraction.
diff --git a/src/testing-utils.ts b/src/testing-utils.ts
index 12193309b..eaec11e2c 100644
--- a/src/testing-utils.ts
+++ b/src/testing-utils.ts
@@ -392,6 +392,7 @@ export function createTestConfig(overrides: Partial<Config>): Config {
       trapCaches: {},
       trapCacheDownloadTime: 0,
       dependencyCachingEnabled: CachingKind.None,
+      dependencyCachingRestoredKeys: [],
       extraQueryExclusions: [],
       overlayDatabaseMode: OverlayDatabaseMode.None,
       useOverlayDatabaseCaching: false,