diff --git a/src/tools/file-operations.ts b/src/tools/file-operations.ts
index f922f23..41821b0 100644
--- a/src/tools/file-operations.ts
+++ b/src/tools/file-operations.ts
@@ -28,22 +28,90 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   server.registerTool(
     'obsidian_create_note',
     'Create a new note in the Obsidian vault. Optionally specify path, content, template, and whether to overwrite existing notes or open after creation.',
-    { type: 'object', properties: {} },
+    {
+      type: 'object',
+      properties: {
+        name: {
+          type: 'string',
+          description: 'File name for the new note',
+        },
+        path: {
+          type: 'string',
+          description: 'Full file path (alternative to name)',
+        },
+        content: {
+          type: 'string',
+          description: 'Initial content for the note (optional)',
+        },
+        template: {
+          type: 'string',
+          description: 'Template name to use (optional)',
+        },
+        overwrite: {
+          type: 'boolean',
+          description: 'Overwrite if file exists (optional)',
+        },
+        open: {
+          type: 'boolean',
+          description: 'Open file after creating (optional)',
+        },
+        newtab: {
+          type: 'boolean',
+          description: 'Open in new tab (optional)',
+        },
+      },
+    },
     createToolHandler(
       'Create a new note in the Obsidian vault',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        properties: {
+          name: {
+            type: 'string',
+            description: 'File name for the new note',
+          },
+          path: {
+            type: 'string',
+            description: 'Full file path (alternative to name)',
+          },
+          content: {
+            type: 'string',
+            description: 'Initial content for the note (optional)',
+          },
+          template: {
+            type: 'string',
+            description: 'Template name to use (optional)',
+          },
+          overwrite: {
+            type: 'boolean',
+            description: 'Overwrite if file exists (optional)',
+          },
+          open: {
+            type: 'boolean',
+            description: 'Open file after creating (optional)',
+          },
+          newtab: {
+            type: 'boolean',
+            description: 'Open in new tab (optional)',
+          },
+        },
+      },
       async (args) => {
         const validated = createNoteSchema.parse(args);
         const sanitized = sanitizeParameters(validated) as any;
 
-        const cmdArgs: string[] = ['create-note', sanitized.name as string];
-        if (sanitized.path) cmdArgs.push('--path', sanitized.path as string);
-        if (sanitized.content) cmdArgs.push('--content', sanitized.content as string);
-        if (sanitized.template) cmdArgs.push('--template', sanitized.template as string);
-        if (sanitized.overwrite) cmdArgs.push('--overwrite');
-        if (sanitized.open) cmdArgs.push('--open');
+        const cmdArgs: string[] = [];
+        
+        // Add name or path parameter
+        if (sanitized.name) cmdArgs.push(`name=${sanitized.name as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        if (sanitized.content) cmdArgs.push(`content=${sanitized.content as string}`);
+        if (sanitized.template) cmdArgs.push(`template=${sanitized.template as string}`);
+        if (sanitized.overwrite) cmdArgs.push('overwrite');
+        if (sanitized.open) cmdArgs.push('open');
+        if (sanitized.newtab) cmdArgs.push('newtab');
 
-        const result = await executeObsidianCommand('note', cmdArgs);
+        const result = await executeObsidianCommand('create', cmdArgs);
         handleCLIResult(result, { operation: 'create_note', name: sanitized.name });
 
         return {
@@ -62,19 +130,44 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   server.registerTool(
     'obsidian_read_note',
     'Read the content of a note from the Obsidian vault. Specify either the note name (file) or full path (path).',
-    { type: 'object', properties: {} },
+    {
+      type: 'object',
+      properties: {
+        file: {
+          type: 'string',
+          description: 'File name (resolves like wikilinks)',
+        },
+        path: {
+          type: 'string',
+          description: 'Exact file path (folder/note.md)',
+        },
+      },
+    },
     createToolHandler(
       'Read the content of a note',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        properties: {
+          file: {
+            type: 'string',
+            description: 'File name (resolves like wikilinks)',
+          },
+          path: {
+            type: 'string',
+            description: 'Exact file path (folder/note.md)',
+          },
+        },
+      },
       async (args) => {
         const validated = readNoteSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const cmdArgs: string[] = ['read-note', identifier as string];
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'read_note', identifier });
+        const result = await executeObsidianCommand('read', cmdArgs);
+        handleCLIResult(result, { operation: 'read_note', identifier: sanitized.file || sanitized.path });
 
         return {
           content: [
@@ -92,20 +185,64 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   server.registerTool(
     'obsidian_append_to_note',
     'Append content to the end of an existing note. Specify either file name or path, and the content to append. Use inline flag to append without a new line.',
-    { type: 'object', properties: {} },
+    {
+      type: 'object',
+      required: ['content'],
+      properties: {
+        file: {
+          type: 'string',
+          description: 'File name (resolves like wikilinks)',
+        },
+        path: {
+          type: 'string',
+          description: 'Exact file path (folder/note.md)',
+        },
+        content: {
+          type: 'string',
+          description: 'Content to append (required)',
+        },
+        inline: {
+          type: 'boolean',
+          description: 'Append without newline (optional)',
+        },
+      },
+    },
     createToolHandler(
       'Append content to the end of a note',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        required: ['content'],
+        properties: {
+          file: {
+            type: 'string',
+            description: 'File name (resolves like wikilinks)',
+          },
+          path: {
+            type: 'string',
+            description: 'Exact file path (folder/note.md)',
+          },
+          content: {
+            type: 'string',
+            description: 'Content to append (required)',
+          },
+          inline: {
+            type: 'boolean',
+            description: 'Append without newline (optional)',
+          },
+        },
+      },
       async (args) => {
         const validated = appendPrependSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const cmdArgs: string[] = ['append', identifier as string, '--content', sanitized.content as string];
-        if (sanitized.inline) cmdArgs.push('--inline');
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        cmdArgs.push(`content=${sanitized.content as string}`);
+        if (sanitized.inline) cmdArgs.push('inline');
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'append', identifier });
+        const result = await executeObsidianCommand('append', cmdArgs);
+        handleCLIResult(result, { operation: 'append', identifier: sanitized.file || sanitized.path });
 
         return {
           content: [
@@ -119,23 +256,45 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
     )
   );
 
+
   // T035: Prepend to note tool
   server.registerTool(
     'obsidian_prepend_to_note',
-    'Prepend content to the beginning of an existing note. Specify either file name or path, and the content to prepend.',
-    { type: 'object', properties: {} },
+    'Prepend content to the beginning of an existing note. Specify either file name or path, and the content to prepend. Use inline flag to prepend without a new line.',
+    {
+      type: 'object',
+      required: ['content'],
+      properties: {
+        file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+        path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+        content: { type: 'string', description: 'Content to prepend (required)' },
+        inline: { type: 'boolean', description: 'Prepend without newline (optional)' },
+      },
+    },
     createToolHandler(
       'Prepend content to the beginning of a note',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        required: ['content'],
+        properties: {
+          file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+          path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+          content: { type: 'string', description: 'Content to prepend (required)' },
+          inline: { type: 'boolean', description: 'Prepend without newline (optional)' },
+        },
+      },
       async (args) => {
         const validated = appendPrependSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const cmdArgs: string[] = ['prepend', identifier as string, '--content', sanitized.content as string];
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        cmdArgs.push(`content=${sanitized.content as string}`);
+        if (sanitized.inline) cmdArgs.push('inline');
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'prepend', identifier });
+        const result = await executeObsidianCommand('prepend', cmdArgs);
+        handleCLIResult(result, { operation: 'prepend', identifier: sanitized.file || sanitized.path });
 
         return {
           content: [
@@ -153,20 +312,35 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   server.registerTool(
     'obsidian_delete_note',
     'Delete a note from the Obsidian vault. By default moves to trash; use permanent flag for permanent deletion. Specify either file name or path.',
-    { type: 'object', properties: {} },
+    {
+      type: 'object',
+      properties: {
+        file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+        path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+        permanent: { type: 'boolean', description: 'Skip trash, delete permanently (optional)' },
+      },
+    },
     createToolHandler(
       'Delete a note from the vault',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        properties: {
+          file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+          path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+          permanent: { type: 'boolean', description: 'Skip trash, delete permanently (optional)' },
+        },
+      },
       async (args) => {
         const validated = deleteNoteSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const cmdArgs: string[] = ['delete', identifier as string];
-        if (sanitized.permanent) cmdArgs.push('--permanent');
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        if (sanitized.permanent) cmdArgs.push('permanent');
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'delete', identifier });
+        const result = await executeObsidianCommand('delete', cmdArgs);
+        handleCLIResult(result, { operation: 'delete', identifier: sanitized.file || sanitized.path });
 
         return {
           content: [
@@ -183,21 +357,38 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   // T037: Move note tool
   server.registerTool(
     'obsidian_move_note',
-    'Move a note to a different location in the vault. Specify the current note (file or path) and the new path (newPath).',
-    { type: 'object', properties: {} },
+    'Move a note to a different location in the vault. Specify the current note (file or path) and the destination path (to).',
+    {
+      type: 'object',
+      required: ['to'],
+      properties: {
+        file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+        path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+        to: { type: 'string', description: 'Destination folder or path (required)' },
+      },
+    },
     createToolHandler(
       'Move a note to a different location',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        required: ['to'],
+        properties: {
+          file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+          path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+          to: { type: 'string', description: 'Destination folder or path (required)' },
+        },
+      },
       async (args) => {
         const validated = moveRenameSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const newLocation = sanitized.newPath || sanitized.newName;
-        const cmdArgs: string[] = ['move', identifier as string, newLocation as string];
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        cmdArgs.push(`to=${(sanitized.to || sanitized.newPath) as string}`);
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'move', identifier, newLocation });
+        const result = await executeObsidianCommand('move', cmdArgs);
+        handleCLIResult(result, { operation: 'move', identifier: sanitized.file || sanitized.path, to: sanitized.to });
 
         return {
           content: [
@@ -214,21 +405,38 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   // T038: Rename note tool
   server.registerTool(
     'obsidian_rename_note',
-    'Rename a note in the vault. Specify the current note (file or path) and the new name (newName).',
-    { type: 'object', properties: {} },
+    'Rename a note in the vault. Specify the current note (file or path) and the new name.',
+    {
+      type: 'object',
+      required: ['name'],
+      properties: {
+        file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+        path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+        name: { type: 'string', description: 'New file name (required)' },
+      },
+    },
     createToolHandler(
       'Rename a note',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        required: ['name'],
+        properties: {
+          file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+          path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+          name: { type: 'string', description: 'New file name (required)' },
+        },
+      },
       async (args) => {
         const validated = moveRenameSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const newName = sanitized.newName || sanitized.newPath;
-        const cmdArgs: string[] = ['rename', identifier as string, newName as string];
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        cmdArgs.push(`name=${(sanitized.name || sanitized.newName) as string}`);
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'rename', identifier, newName });
+        const result = await executeObsidianCommand('rename', cmdArgs);
+        handleCLIResult(result, { operation: 'rename', identifier: sanitized.file || sanitized.path, name: sanitized.name });
 
         return {
           content: [
@@ -246,20 +454,35 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
   server.registerTool(
     'obsidian_open_note',
     'Open a note in the Obsidian application. Specify either file name or path. Use newtab flag to open in a new tab.',
-    { type: 'object', properties: {} },
+    {
+      type: 'object',
+      properties: {
+        file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+        path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+        newtab: { type: 'boolean', description: 'Open in new tab (optional)' },
+      },
+    },
     createToolHandler(
       'Open a note in Obsidian',
-      { type: 'object', properties: {} },
+      {
+        type: 'object',
+        properties: {
+          file: { type: 'string', description: 'File name (resolves like wikilinks)' },
+          path: { type: 'string', description: 'Exact file path (folder/note.md)' },
+          newtab: { type: 'boolean', description: 'Open in new tab (optional)' },
+        },
+      },
       async (args) => {
         const validated = fileIdentifierSchema.parse(args) as any;
         const sanitized = sanitizeParameters(validated) as any;
 
-        const identifier = sanitized.file || sanitized.path;
-        const cmdArgs: string[] = ['open', identifier as string];
-        if ((args as any).newtab) cmdArgs.push('--newtab');
+        const cmdArgs: string[] = [];
+        if (sanitized.file) cmdArgs.push(`file=${sanitized.file as string}`);
+        if (sanitized.path) cmdArgs.push(`path=${sanitized.path as string}`);
+        if ((args as any).newtab) cmdArgs.push('newtab');
 
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'open', identifier });
+        const result = await executeObsidianCommand('open', cmdArgs);
+        handleCLIResult(result, { operation: 'open', identifier: sanitized.file || sanitized.path });
 
         return {
           content: [
@@ -273,35 +496,8 @@ export async function registerFileOperationTools(server: ObsidianMCPServer): Pro
     )
   );
 
-  // T040: Get file info tool
-  server.registerTool(
-    'obsidian_get_file_info',
-    'Get metadata and information about a note file. Specify either file name or path. Returns file size, dates, path, and other metadata.',
-    { type: 'object', properties: {} },
-    createToolHandler(
-      'Get information about a note file',
-      { type: 'object', properties: {} },
-      async (args) => {
-        const validated = fileIdentifierSchema.parse(args) as any;
-        const sanitized = sanitizeParameters(validated) as any;
+  // Note: obsidian_duplicate_note and obsidian_get_file_info were removed
+  // as they are not in the actual Obsidian CLI specification
 
-        const identifier = sanitized.file || sanitized.path;
-        const cmdArgs: string[] = ['info', identifier as string];
-
-        const result = await executeObsidianCommand('note', cmdArgs);
-        handleCLIResult(result, { operation: 'file_info', identifier });
-
-        return {
-          content: [
-            {
-              type: 'text',
-              text: formatForMCP(result.stdout, 'text'),
-            },
-          ],
-        };
-      }
-    )
-  );
-
-  logger.info('File operation tools registered', { count: 9 });
+  logger.info('File operation tools registered', { count: 8 });
 }