diff --git a/workspaces/leetcode-api/schema-patched.graphql b/workspaces/leetcode-api/schema-patched.graphql
index 1343c512..ef4f844f 100644
--- a/workspaces/leetcode-api/schema-patched.graphql
+++ b/workspaces/leetcode-api/schema-patched.graphql
@@ -10419,7 +10419,7 @@ type QuestionNode {
   stats: JSONString!
   status: String
   submitUrl: String!
-  title: String!
+  title: String! @trim
   titleSlug: String! @slug
   topicTags: [TopicTagNode!]!
   translatedContent: String
@@ -11008,7 +11008,7 @@ type SubmissionDumpNode {
   statusDisplay: String
   time: String
   timestamp: String!
-  title: String!
+  title: String! @trim
   titleSlug: String! @slug
   topicTags: [TopicTagNode]
   url: String
@@ -12217,4 +12217,6 @@ directive @nonnegative on FIELD_DEFINITION
 
 directive @slug on FIELD_DEFINITION
 
+directive @trim on FIELD_DEFINITION
+
 directive @enum(values: [String!]!) on FIELD_DEFINITION
diff --git a/workspaces/leetcode-api/src/api/active-daily-coding-challenge-question/fetchGraphQL.generated.ts b/workspaces/leetcode-api/src/api/active-daily-coding-challenge-question/fetchGraphQL.generated.ts
index 9aa1ef96..5525864c 100644
--- a/workspaces/leetcode-api/src/api/active-daily-coding-challenge-question/fetchGraphQL.generated.ts
+++ b/workspaces/leetcode-api/src/api/active-daily-coding-challenge-question/fetchGraphQL.generated.ts
@@ -33,7 +33,7 @@ export const queryResultZodType = z.object({
     question: z.object({
       difficulty: z.enum(["Easy", "Medium", "Hard"]),
       questionFrontendId: z.string(),
-      title: z.string(),
+      title: z.string().trim(),
       titleSlug: slugZodType,
     }),
   }),
diff --git a/workspaces/leetcode-api/src/api/question-list/fetchGraphQL.generated.ts b/workspaces/leetcode-api/src/api/question-list/fetchGraphQL.generated.ts
index 52f3c460..fc8d9730 100644
--- a/workspaces/leetcode-api/src/api/question-list/fetchGraphQL.generated.ts
+++ b/workspaces/leetcode-api/src/api/question-list/fetchGraphQL.generated.ts
@@ -48,7 +48,7 @@ export const queryResultZodType = z.object({
         difficulty: z.enum(["Easy", "Medium", "Hard"]),
         isPaidOnly: z.boolean(),
         questionFrontendId: z.string(),
-        title: z.string(),
+        title: z.string().trim(),
         titleSlug: slugZodType,
       }),
     ),
diff --git a/workspaces/leetcode-api/src/api/recent-ac-submission-list/fetchGraphQL.generated.ts b/workspaces/leetcode-api/src/api/recent-ac-submission-list/fetchGraphQL.generated.ts
index 4b9aa705..8b3c8c78 100644
--- a/workspaces/leetcode-api/src/api/recent-ac-submission-list/fetchGraphQL.generated.ts
+++ b/workspaces/leetcode-api/src/api/recent-ac-submission-list/fetchGraphQL.generated.ts
@@ -28,7 +28,7 @@ export const queryResultZodType = z.object({
   recentAcSubmissionList: z.array(
     z.object({
       id: z.string(),
-      title: z.string(),
+      title: z.string().trim(),
       titleSlug: slugZodType,
       timestamp: z.string(),
     }),
diff --git a/workspaces/leetcode-api/src/scripts/codegen/graphqlToZod.ts b/workspaces/leetcode-api/src/scripts/codegen/graphqlToZod.ts
index d0bb43e0..adbb7e88 100644
--- a/workspaces/leetcode-api/src/scripts/codegen/graphqlToZod.ts
+++ b/workspaces/leetcode-api/src/scripts/codegen/graphqlToZod.ts
@@ -18,6 +18,7 @@ import {
 type DirectivesConfig = {
   nonnegative?: boolean;
   slug?: boolean;
+  trim?: boolean;
   enumValues?: string[];
 };
 
@@ -49,6 +50,11 @@ function parseDirectives(
         res.slug = true;
         break;
       }
+      case "trim": {
+        invariant(!directive.arguments?.length, "No arguments allowed!");
+        res.trim = true;
+        break;
+      }
       default: {
         throw new Error("Unsupported directive " + directive.name.value);
       }
@@ -91,10 +97,7 @@ function generateZod(
       }
       case "Int": {
         const { nonnegative, ...rest } = parseDirectives(directives);
-        invariant(
-          Object.values(rest).every((v) => v === false),
-          "Unsupported directives!",
-        );
+        invariant(Object.keys(rest).length === 0, "Unsupported directives!");
 
         return [
           new ZodOutput(
@@ -120,14 +123,11 @@ function generateZod(
         return [new ZodOutput("z.string()", true), []];
       }
       case "String": {
-        const { slug, enumValues, ...rest } = parseDirectives(directives);
-        invariant(!(slug && enumValues), "Incompatible directive combination!");
-        invariant(
-          Object.values(rest).every((v) => v === false),
-          "Unsupported directives!",
-        );
+        const { slug, trim, enumValues, ...rest } = parseDirectives(directives);
+        invariant(Object.keys(rest).length === 0, "Unsupported directives!");
 
         if (enumValues) {
+          invariant(!slug && !trim, "Incompatible directive combination!");
           return [
             new ZodOutput(`z.enum(${JSON.stringify(enumValues)})`, true),
             [],
@@ -135,13 +135,17 @@ function generateZod(
         }
 
         if (slug) {
+          invariant(!trim, "@trim is redundant when @slug is enabled!");
           return [
             new ZodOutput("slugZodType", true),
             ['import { slugZodType } from "../../zod-types/slugZodType.ts"'],
           ];
         }
 
-        return [new ZodOutput("z.string()", true), []];
+        return [
+          new ZodOutput(["z.string()", trim ? ".trim()" : ""].join(""), true),
+          [],
+        ];
       }
       default: {
         throw new Error("Unsupported scalar type: " + currentType.name);
diff --git a/workspaces/leetcode-api/src/scripts/patch-graphql-schema/addDirectiveToField.ts b/workspaces/leetcode-api/src/scripts/patch-graphql-schema/addDirectiveToField.ts
index 119a1ff2..71c16b9d 100644
--- a/workspaces/leetcode-api/src/scripts/patch-graphql-schema/addDirectiveToField.ts
+++ b/workspaces/leetcode-api/src/scripts/patch-graphql-schema/addDirectiveToField.ts
@@ -9,7 +9,7 @@ import { nameNode } from "./astNodeBuilders.ts";
 
 // TODO: keep in sync with DirectivesConfig in graphqlToZod
 
-export const CUSTOM_DIRECTIVES = ["nonnegative", "slug"] as const;
+export const CUSTOM_DIRECTIVES = ["nonnegative", "slug", "trim"] as const;
 
 // TODO: memoize by directiveName?
 
diff --git a/workspaces/leetcode-api/src/scripts/patch-graphql-schema/modifications.ts b/workspaces/leetcode-api/src/scripts/patch-graphql-schema/modifications.ts
index 3d24cf14..83acdc0a 100644
--- a/workspaces/leetcode-api/src/scripts/patch-graphql-schema/modifications.ts
+++ b/workspaces/leetcode-api/src/scripts/patch-graphql-schema/modifications.ts
@@ -68,6 +68,7 @@ export const FIELD_MODIFICATIONS: SafeObjectMap<
     solutionNum: [markNonNull, addDirective("nonnegative")],
     stats: [markNonNull],
     submitUrl: [markNonNull],
+    title: [addDirective("trim")],
     titleSlug: [addDirective("slug")],
     topicTags: [markNonNull],
     urlManager: [markNonNull],
@@ -75,7 +76,7 @@ export const FIELD_MODIFICATIONS: SafeObjectMap<
   SubmissionDumpNode: {
     id: [markNonNull],
     timestamp: [markNonNull],
-    title: [markNonNull],
+    title: [markNonNull, addDirective("trim")],
     titleSlug: [markNonNull, addDirective("slug")],
   },
 };