diff --git a/hmac-sign/index.ts b/hmac-sign/index.ts
index 136fb5e..4616a77 100644
--- a/hmac-sign/index.ts
+++ b/hmac-sign/index.ts
@@ -45,8 +45,8 @@ export async function execute(context: Context): Promise<Output> {
 }
 
 async function signContent(context: Context, contentBytes: SecureByteArray): Promise<ArrayBuffer> {
-    const algorithmParams = { name: "HMAC", hash: context.parameters.hmacHashAlgorithmName };
-    const keyUse = ["sign"];
+    const algorithmParams: HmacImportParams = { name: "HMAC", hash: context.parameters.hmacHashAlgorithmName };
+    const keyUse: KeyUsage[] = ["sign"];
     const privateKey = await crypto.subtle.importKey("cryptosecret", context.parameters.cryptoSecretParameter, algorithmParams, false, keyUse);
 
     return await crypto.subtle.sign("HMAC", privateKey, contentBytes);
diff --git a/hmac-verify/index.ts b/hmac-verify/index.ts
index 33ced8e..bbd4f37 100644
--- a/hmac-verify/index.ts
+++ b/hmac-verify/index.ts
@@ -57,8 +57,8 @@ export async function execute(context: Context): Promise<Output> {
 }
 
 async function verifyContent(context: Context, signatureBytes: Uint8Array, contentBytes: SecureByteArray): Promise<boolean> {
-    const algorithmParams = { name: "HMAC", hash: context.parameters.hmacHashAlgorithmName };
-    const keyUse = ["verify"];
+    const algorithmParams: HmacImportParams = { name: "HMAC", hash: context.parameters.hmacHashAlgorithmName };
+    const keyUse: KeyUsage[] = ["verify"];
     const publicKey = await crypto.subtle.importKey("cryptosecret", context.parameters.cryptoSecretParameter, algorithmParams, false, keyUse);
 
     return await crypto.subtle.verify("HMAC", publicKey, signatureBytes, contentBytes);
diff --git a/multiple-resource-copy/index.ts b/multiple-resource-copy/index.ts
index 1b54372..2f83470 100644
--- a/multiple-resource-copy/index.ts
+++ b/multiple-resource-copy/index.ts
@@ -1,4 +1,4 @@
-export function getDescription(): ScriptDescription {
+export function getDescription() {
     return {
         displayName: "Multiple Resource Copy",
         description: "Copies multiple resources into a target directory. It has no size limit; the amount of transferred data is only limited by the step timeout.",
@@ -80,7 +80,7 @@ export function getDescription(): ScriptDescription {
                 description: "Number of files that failed to be copied.",
             },
         ],
-    };
+    } as const satisfies ScriptDescription;
 }
 
 export async function execute(context: Context): Promise<Output | void> {
diff --git a/resource-copy/index.ts b/resource-copy/index.ts
index 8276500..3c3ea74 100644
--- a/resource-copy/index.ts
+++ b/resource-copy/index.ts
@@ -1,4 +1,4 @@
-export function getDescription(): ScriptDescription {
+export function getDescription() {
     return {
         displayName: "Resource Copy",
         description: "Copies an input resource into an output resource.",
@@ -33,7 +33,7 @@ export function getDescription(): ScriptDescription {
             },
         ],
         output: [],
-    };
+    } as const satisfies ScriptDescription;
 }
 
 export async function execute(context: Context): Promise<Output | void> {
diff --git a/rsa-sign/index.ts b/rsa-sign/index.ts
index ae28460..3c5201c 100644
--- a/rsa-sign/index.ts
+++ b/rsa-sign/index.ts
@@ -51,8 +51,8 @@ export async function execute(context: Context): Promise<Output> {
 }
 
 async function signContent(context: Context, fileToSign: IFile): Promise<ArrayBuffer> {
-    const algorithmParams = { name: context.parameters.rsaAlgorithmName, hash: context.parameters.rsaHashAlgorithmName };
-    const keyUse = ["sign"];
+    const algorithmParams: RsaHashedImportParams = { name: context.parameters.rsaAlgorithmName, hash: context.parameters.rsaHashAlgorithmName };
+    const keyUse: KeyUsage[] = ["sign"];
     const privateKey = await crypto.subtle.importKey("pkcs8fromparameterinput", context.parameters.privateCertificate, algorithmParams, false, keyUse);
 
     return await crypto.subtle.sign(context.parameters.rsaAlgorithmName, privateKey, fileToSign);
diff --git a/rsa-verify/index.ts b/rsa-verify/index.ts
index 84f89e8..26eb742 100644
--- a/rsa-verify/index.ts
+++ b/rsa-verify/index.ts
@@ -64,8 +64,8 @@ export async function execute(context: Context): Promise<Output> {
 }
 
 async function verifyContent(context: Context, signatureBytes: Uint8Array, fileToVerify: IFile): Promise<boolean> {
-    const algorithmParams = { name: context.parameters.rsaAlgorithmName, hash: context.parameters.rsaHashAlgorithmName };
-    const keyUse = ["verify"];
+    const algorithmParams: RsaHashedImportParams = { name: context.parameters.rsaAlgorithmName, hash: context.parameters.rsaHashAlgorithmName };
+    const keyUse: KeyUsage[] = ["verify"];
     const publicKey = await crypto.subtle.importKey("spkifromparameterinput", context.parameters.publicCertificate, algorithmParams, false, keyUse);
 
     return await crypto.subtle.verify(context.parameters.rsaAlgorithmName, publicKey, signatureBytes, fileToVerify);