diff --git a/functions/create_issue.ts b/functions/create_issue.ts
index 8e92035..4c8c289 100644
--- a/functions/create_issue.ts
+++ b/functions/create_issue.ts
@@ -38,8 +38,6 @@ export const CreateIssueDefinition = DefineFunction({
       "githubAccessTokenId",
       "url",
       "title",
-      "description",
-      "assignees",
     ],
   },
   output_parameters: {
diff --git a/workflows/create_new_issue.ts b/workflows/create_new_issue.ts
index 83afe6e..7c44e9c 100644
--- a/workflows/create_new_issue.ts
+++ b/workflows/create_new_issue.ts
@@ -45,6 +45,7 @@ const issueFormData = CreateNewIssueWorkflow.addStep(
         title: "Repository URL",
         description: "The GitHub URL of the repository",
         type: Schema.types.string,
+        format: "url",
       }, {
         name: "title",
         title: "Issue title",
@@ -61,7 +62,7 @@ const issueFormData = CreateNewIssueWorkflow.addStep(
           "GitHub username(s) of the user(s) to assign the issue to (separated by commas)",
         type: Schema.types.string,
       }],
-      required: ["url", "title", "description", "assignees"],
+      required: ["url", "title"],
     },
   },
 );