diff --git a/packages/data/src/redux-store/metadata/actions.js b/packages/data/src/redux-store/metadata/actions.js
index 0dc70aa800366e..adfe0f6918f753 100644
--- a/packages/data/src/redux-store/metadata/actions.js
+++ b/packages/data/src/redux-store/metadata/actions.js
@@ -2,10 +2,10 @@
  * Returns an action object used in signalling that selector resolution has
  * started.
  *
- * @param {string} selectorName Name of selector for which resolver triggered.
- * @param {...*}   args         Arguments to associate for uniqueness.
+ * @param {string}    selectorName Name of selector for which resolver triggered.
+ * @param {unknown[]} args         Arguments to associate for uniqueness.
  *
- * @return {Object} Action object.
+ * @return {{ type: 'START_RESOLUTION', selectorName: string, args: unknown[] }} Action object.
  */
 export function startResolution( selectorName, args ) {
 	return {
@@ -19,10 +19,10 @@ export function startResolution( selectorName, args ) {
  * Returns an action object used in signalling that selector resolution has
  * completed.
  *
- * @param {string} selectorName Name of selector for which resolver triggered.
- * @param {...*}   args         Arguments to associate for uniqueness.
+ * @param {string}    selectorName Name of selector for which resolver triggered.
+ * @param {unknown[]} args         Arguments to associate for uniqueness.
  *
- * @return {Object} Action object.
+ * @return {{ type: 'FINISH_RESOLUTION', selectorName: string, args: unknown[] }} Action object.
  */
 export function finishResolution( selectorName, args ) {
 	return {
@@ -36,11 +36,11 @@ export function finishResolution( selectorName, args ) {
  * Returns an action object used in signalling that a batch of selector resolutions has
  * started.
  *
- * @param {string} selectorName Name of selector for which resolver triggered.
- * @param {...*}   args         Array of arguments to associate for uniqueness, each item
- *                              is associated to a resolution.
+ * @param {string}    selectorName Name of selector for which resolver triggered.
+ * @param {unknown[]} args         Array of arguments to associate for uniqueness, each item
+ *                                 is associated to a resolution.
  *
- * @return {Object} Action object.
+ * @return {{ type: 'START_RESOLUTIONS', selectorName: string, args: unknown[] }} Action object.
  */
 export function startResolutions( selectorName, args ) {
 	return {
@@ -54,11 +54,11 @@ export function startResolutions( selectorName, args ) {
  * Returns an action object used in signalling that a batch of selector resolutions has
  * completed.
  *
- * @param {string} selectorName Name of selector for which resolver triggered.
- * @param {...*}   args         Array of arguments to associate for uniqueness, each item
- *                              is associated to a resolution.
+ * @param {string}    selectorName Name of selector for which resolver triggered.
+ * @param {unknown[]} args         Array of arguments to associate for uniqueness, each item
+ *                                 is associated to a resolution.
  *
- * @return {Object} Action object.
+ * @return {{ type: 'FINISH_RESOLUTIONS', selectorName: string, args: unknown[] }} Action object.
  */
 export function finishResolutions( selectorName, args ) {
 	return {
@@ -71,10 +71,10 @@ export function finishResolutions( selectorName, args ) {
 /**
  * Returns an action object used in signalling that we should invalidate the resolution cache.
  *
- * @param {string} selectorName Name of selector for which resolver should be invalidated.
- * @param {Array}  args         Arguments to associate for uniqueness.
+ * @param {string}    selectorName Name of selector for which resolver should be invalidated.
+ * @param {unknown[]} args         Arguments to associate for uniqueness.
  *
- * @return {Object} Action object.
+ * @return {{ type: 'INVALIDATE_RESOLUTION', selectorName: string, args: any[] }} Action object.
  */
 export function invalidateResolution( selectorName, args ) {
 	return {
@@ -88,7 +88,7 @@ export function invalidateResolution( selectorName, args ) {
  * Returns an action object used in signalling that the resolution
  * should be invalidated.
  *
- * @return {Object} Action object.
+ * @return {{ type: 'INVALIDATE_RESOLUTION_FOR_STORE' }} Action object.
  */
 export function invalidateResolutionForStore() {
 	return {
@@ -103,7 +103,7 @@ export function invalidateResolutionForStore() {
  * @param {string} selectorName Name of selector for which all resolvers should
  *                              be invalidated.
  *
- * @return  {Object} Action object.
+ * @return  {{ type: 'INVALIDATE_RESOLUTION_FOR_STORE_SELECTOR', selectorName: string }} Action object.
  */
 export function invalidateResolutionForStoreSelector( selectorName ) {
 	return {
diff --git a/packages/data/tsconfig.json b/packages/data/tsconfig.json
new file mode 100644
index 00000000000000..574fdc56223364
--- /dev/null
+++ b/packages/data/tsconfig.json
@@ -0,0 +1,20 @@
+{
+	"extends": "../../tsconfig.base.json",
+	"compilerOptions": {
+		"rootDir": "src",
+		"declarationDir": "build-types",
+		"noUnusedParameters": false,
+	},
+	"references": [
+		{ "path": "../compose" },
+		{ "path": "../deprecated" },
+		{ "path": "../element" },
+		{ "path": "../is-shallow-equal" },
+		{ "path": "../priority-queue" },
+		// Needs to be added once it is typed
+		// { "path": "../redux-routine" }
+	],
+	"include": [
+		"src/redux-store/metadata/actions.js"
+	]
+}
diff --git a/tsconfig.json b/tsconfig.json
index f1fa8250ee0bf5..53ab6c77aa41b5 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -8,6 +8,7 @@
 		{ "path": "packages/block-editor" },
 		{ "path": "packages/components" },
 		{ "path": "packages/compose" },
+		{ "path": "packages/data" },
 		{ "path": "packages/date" },
 		{ "path": "packages/deprecated" },
 		{ "path": "packages/docgen" },