update readme

src/filesystem/README.md

@@ -37,33 +37,19 @@ Node.js server implementing Model Context Protocol (MCP) for filesystem operatio
     - `content` (string): File content
 
 - **edit_file**
-  - Make selective edits to files with advanced pattern matching
+  - Make selective edits using search and replace
   - Features:
-    - Multiple positioning modes:
-      - Line-based: Specify exact line numbers
-      - Pattern-based: Find positions using anchor text
-      - Context-aware: Verify surrounding content
-    - Insert modes: 'replace', 'before', or 'after' content
-    - Dry run preview of changes
-    - Cross-platform line ending support (CRLF/LF)
-    - Git-friendly content verification
+    - Simple substring matching for finding text
+    - Git-style preview format for changes
+    - Preview changes with dry run mode
+    - Preserves original file formatting and indentation
   - Inputs:
     - `path` (string): File to edit
     - `edits` (array): List of edit operations
-      - `startLine?` (number): Line number for edit (optional)
-      - `findAnchor?` (string): Text to locate edit position (optional)
-      - `anchorOffset` (number): Lines to offset from anchor (default: 0)
-      - `oldText` (string): Content to replace/verify
-      - `newText` (string): New content to insert
-      - `insertMode` (string): 'replace', 'before', or 'after' (default: 'replace')
-      - `beforeContext?` (string): Expected content before edit point (optional)
-      - `afterContext?` (string): Expected content after edit point (optional)
-      - `contextRadius` (number): Lines to check for context (default: 3)
-      - `verifyState` (boolean): Verify content matches before editing (default: true)
-      - `readBeforeEdit` (boolean): Refresh file state between edits (default: false)
-      - `dryRun` (boolean): Preview changes without applying them (default: false)
+      - `oldText` (string): Text to search for (can be substring)
+      - `newText` (string): Text to replace with
+      - `dryRun` (boolean): Preview changes without applying (default: false)
   - Returns preview information for dry runs, otherwise applies changes
-  - Preserves original line endings and handles Git auto CRLF/LF
 
 - **create_directory**
   - Create new directory or ensure it exists
@@ -127,4 +113,4 @@ Add this to your `claude_desktop_config.json`:
 
 ## License
 
-This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.
+This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.