diff --git a/README.md b/README.md
index f4b6aaf..6d72db2 100644
--- a/README.md
+++ b/README.md
@@ -55,31 +55,32 @@ When using with the Claude App, you need to set up your API key and URLs directl
 11. `get_merge_request_diffs` - Get the changes/diffs of a merge request (Either mergeRequestIid or branchName must be provided)
 12. `update_merge_request` - Update a merge request (Either mergeRequestIid or branchName must be provided)
 13. `create_note` - Create a new note (comment) to an issue or merge request
-14. `mr_discussions` - List discussion items for a merge request
-15. `update_merge_request_note` - Modify an existing merge request thread note
-16. `list_issues` - List issues in a GitLab project with filtering options
-17. `get_issue` - Get details of a specific issue in a GitLab project
-18. `update_issue` - Update an issue in a GitLab project
-19. `delete_issue` - Delete an issue from a GitLab project
-20. `list_issue_links` - List all issue links for a specific issue
-21. `get_issue_link` - Get a specific issue link
-22. `create_issue_link` - Create an issue link between two issues
-23. `delete_issue_link` - Delete an issue link
-24. `list_namespaces` - List all namespaces available to the current user
-25. `get_namespace` - Get details of a namespace by ID or path
-26. `verify_namespace` - Verify if a namespace path exists
-27. `get_project` - Get details of a specific project
-28. `list_projects` - List projects accessible by the current user
-29. `list_labels` - List labels for a project
-30. `get_label` - Get a single label from a project
-31. `create_label` - Create a new label in a project
-32. `update_label` - Update an existing label in a project
-33. `delete_label` - Delete a label from a project
-34. `list_group_projects` - List projects in a GitLab group with filtering options
-35. `list_wiki_pages` - List wiki pages in a GitLab project
-36. `get_wiki_page` - Get details of a specific wiki page
-37. `create_wiki_page` - Create a new wiki page in a GitLab project
-38. `update_wiki_page` - Update an existing wiki page in a GitLab project
-39. `delete_wiki_page` - Delete a wiki page from a GitLab project
-40. `get_repository_tree` - Get the repository tree for a GitLab project (list files and directories)
+14. `create_merge_request_thread` - Create a new thread on a merge request
+15. `mr_discussions` - List discussion items for a merge request
+16. `update_merge_request_note` - Modify an existing merge request thread note
+17. `list_issues` - List issues in a GitLab project with filtering options
+18. `get_issue` - Get details of a specific issue in a GitLab project
+19. `update_issue` - Update an issue in a GitLab project
+20. `delete_issue` - Delete an issue from a GitLab project
+21. `list_issue_links` - List all issue links for a specific issue
+22. `get_issue_link` - Get a specific issue link
+23. `create_issue_link` - Create an issue link between two issues
+24. `delete_issue_link` - Delete an issue link
+25. `list_namespaces` - List all namespaces available to the current user
+26. `get_namespace` - Get details of a namespace by ID or path
+27. `verify_namespace` - Verify if a namespace path exists
+28. `get_project` - Get details of a specific project
+29. `list_projects` - List projects accessible by the current user
+30. `list_labels` - List labels for a project
+31. `get_label` - Get a single label from a project
+32. `create_label` - Create a new label in a project
+33. `update_label` - Update an existing label in a project
+34. `delete_label` - Delete a label from a project
+35. `list_group_projects` - List projects in a GitLab group with filtering options
+36. `list_wiki_pages` - List wiki pages in a GitLab project
+37. `get_wiki_page` - Get details of a specific wiki page
+38. `create_wiki_page` - Create a new wiki page in a GitLab project
+39. `update_wiki_page` - Update an existing wiki page in a GitLab project
+40. `delete_wiki_page` - Delete a wiki page from a GitLab project
+41. `get_repository_tree` - Get the repository tree for a GitLab project (list files and directories)
 <!-- TOOLS-END -->
diff --git a/index.ts b/index.ts
index f95d862..c21aab6 100644
--- a/index.ts
+++ b/index.ts
@@ -75,6 +75,7 @@ import {
   UpdateLabelSchema,
   DeleteLabelSchema,
   CreateNoteSchema,
+  CreateMergeRequestThreadSchema,
   ListGroupProjectsSchema,
   ListWikiPagesSchema,
   GetWikiPageSchema,
@@ -108,6 +109,7 @@ import {
   // Discussion Types
   type GitLabDiscussionNote, // Added
   type GitLabDiscussion,
+  type MergeRequestThreadPosition,
   type GetWikiPageOptions,
   type CreateWikiPageOptions,
   type UpdateWikiPageOptions,
@@ -263,6 +265,11 @@ const allTools = [
     description: "Create a new note (comment) to an issue or merge request",
     inputSchema: zodToJsonSchema(CreateNoteSchema),
   },
+  {
+    name: "create_merge_request_thread",
+    description: "Create a new thread on a merge request",
+    inputSchema: zodToJsonSchema(CreateMergeRequestThreadSchema),
+  },
   {
     name: "mr_discussions",
     description: "List discussion items for a merge request",
@@ -1520,6 +1527,59 @@ async function createNote(
   return await response.json();
 }
 
+/**
+ * Create a new thread on a merge request
+ * 📦 새로운 함수: createMergeRequestThread - 병합 요청에 새로운 스레드(토론)를 생성하는 함수
+ * (New function: createMergeRequestThread - Function to create a new thread (discussion) on a merge request)
+ * 
+ * This function provides more capabilities than createNote, including the ability to:
+ * - Create diff notes (comments on specific lines of code)
+ * - Specify exact positions for comments
+ * - Set creation timestamps
+ *
+ * @param {string} projectId - The ID or URL-encoded path of the project
+ * @param {number} mergeRequestIid - The internal ID of the merge request
+ * @param {string} body - The content of the thread
+ * @param {MergeRequestThreadPosition} [position] - Position information for diff notes
+ * @param {string} [createdAt] - ISO 8601 formatted creation date
+ * @returns {Promise<GitLabDiscussion>} The created discussion thread
+ */
+async function createMergeRequestThread(
+  projectId: string,
+  mergeRequestIid: number,
+  body: string,
+  position?: MergeRequestThreadPosition,
+  createdAt?: string
+): Promise<GitLabDiscussion> {
+  projectId = decodeURIComponent(projectId); // Decode project ID
+  const url = new URL(
+    `${GITLAB_API_URL}/projects/${encodeURIComponent(
+      projectId
+    )}/merge_requests/${mergeRequestIid}/discussions`
+  );
+
+  const payload: Record<string, any> = { body };
+  
+  // Add optional parameters if provided
+  if (position) {
+    payload.position = position;
+  }
+  
+  if (createdAt) {
+    payload.created_at = createdAt;
+  }
+
+  const response = await fetch(url.toString(), {
+    ...DEFAULT_FETCH_CONFIG,
+    method: "POST",
+    body: JSON.stringify(payload),
+  });
+
+  await handleGitLabError(response);
+  const data = await response.json();
+  return GitLabDiscussionSchema.parse(data);
+}
+
 /**
  * List all namespaces
  * 사용 가능한 모든 네임스페이스 목록 조회
@@ -2454,6 +2514,22 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {
         };
       }
 
+      case "create_merge_request_thread": {
+        const args = CreateMergeRequestThreadSchema.parse(request.params.arguments);
+        const { project_id, merge_request_iid, body, position, created_at } = args;
+
+        const thread = await createMergeRequestThread(
+          project_id,
+          merge_request_iid,
+          body,
+          position,
+          created_at
+        );
+        return {
+          content: [{ type: "text", text: JSON.stringify(thread, null, 2) }],
+        };
+      }
+
       case "list_issues": {
         const args = ListIssuesSchema.parse(request.params.arguments);
         const { project_id, ...options } = args;
diff --git a/schemas.ts b/schemas.ts
index b2dd58a..2e27c00 100644
--- a/schemas.ts
+++ b/schemas.ts
@@ -1004,6 +1004,30 @@ export const GitLabWikiPageSchema = z.object({
   updated_at: z.string().optional(),
 });
 
+// Merge Request Thread position schema - used for diff notes
+export const MergeRequestThreadPositionSchema = z.object({
+  base_sha: z.string().describe("Base commit SHA in the source branch"),
+  head_sha: z.string().describe("SHA referencing HEAD of the source branch"),
+  start_sha: z.string().describe("SHA referencing the start commit of the source branch"),
+  position_type: z.enum(["text", "image", "file"]).describe("Type of position reference"),
+  new_path: z.string().optional().describe("File path after change"),
+  old_path: z.string().optional().describe("File path before change"),
+  new_line: z.number().nullable().optional().describe("Line number after change"),
+  old_line: z.number().nullable().optional().describe("Line number before change"),
+  width: z.number().optional().describe("Width of the image (for image diffs)"),
+  height: z.number().optional().describe("Height of the image (for image diffs)"),
+  x: z.number().optional().describe("X coordinate on the image (for image diffs)"),
+  y: z.number().optional().describe("Y coordinate on the image (for image diffs)"),
+});
+
+// Schema for creating a new merge request thread
+export const CreateMergeRequestThreadSchema = ProjectParamsSchema.extend({
+  merge_request_iid: z.number().describe("The IID of a merge request"),
+  body: z.string().describe("The content of the thread"),
+  position: MergeRequestThreadPositionSchema.optional().describe("Position when creating a diff note"),
+  created_at: z.string().optional().describe("Date the thread was created at (ISO 8601 format)"),
+});
+
 // Export types
 export type GitLabAuthor = z.infer<typeof GitLabAuthorSchema>;
 export type GitLabFork = z.infer<typeof GitLabForkSchema>;
@@ -1053,3 +1077,5 @@ export type DeleteWikiPageOptions = z.infer<typeof DeleteWikiPageSchema>;
 export type GitLabWikiPage = z.infer<typeof GitLabWikiPageSchema>;
 export type GitLabTreeItem = z.infer<typeof GitLabTreeItemSchema>;
 export type GetRepositoryTreeOptions = z.infer<typeof GetRepositoryTreeSchema>;
+export type MergeRequestThreadPosition = z.infer<typeof MergeRequestThreadPositionSchema>;
+export type CreateMergeRequestThreadOptions = z.infer<typeof CreateMergeRequestThreadSchema>;