obsidian-mcp 2.1.6
MCP server for interacting with Obsidian vaults through direct filesystem access
Requires Python: >=3.10
Keywords: mcp, obsidian, fastmcp, llm, ai, notes, knowledge-management

# Obsidian MCP Server

## 🎉 Version 2.0 Released!

**Major improvements in v2.0:**
- ⚡ **5x faster searches** with persistent SQLite indexing
- 🖼️ **Image support** - View and analyze images from your vault
- 🔍 **Powerful regex search** - Find complex patterns in your notes
- 🗂️ **Property search** - Query by frontmatter properties (status, priority, etc.)
- 🚀 **One-command setup** - Auto-configure Claude Desktop with `uvx --from obsidian-mcp obsidian-mcp-configure --vault-path /path/to/your/vault`
- 🔄 **Direct filesystem access** - No plugins required, works offline
- 📦 **90% less memory usage** - Efficient streaming architecture

---

A Model Context Protocol (MCP) server that enables AI assistants like Claude to interact with your Obsidian vault. This server provides tools for reading, creating, searching, and managing notes in Obsidian through direct filesystem access with blazing-fast performance thanks to intelligent indexing.

## Features

- 📖 **Read & write notes** - Full access to your Obsidian vault with automatic overwrite protection
- 🔍 **Lightning-fast search** - Find notes instantly by content, tags, properties, or modification date with persistent indexing
- 🖼️ **Image analysis** - View and analyze images embedded in notes or stored in your vault
- 🔎 **Regex power search** - Use regular expressions to find code patterns, URLs, or complex text structures
- 🗂️ **Property search** - Query notes by frontmatter properties with operators (=, >, <, contains, exists)
- 📁 **Browse vault** - List and navigate your notes and folders by directory
- 🏷️ **Tag management** - Add, remove, and organize tags (supports hierarchical tags, frontmatter, and inline tags)
- 🔗 **Link management** - Find backlinks, analyze outgoing links, and identify broken links
- ✏️ **Smart rename** - Rename notes with automatic link updates throughout your vault
- 📊 **Note insights** - Get statistics like word count and link analysis
- 🎯 **AI-optimized** - Clear error messages and smart defaults for better AI interactions
- 🔒 **Secure** - Direct filesystem access with path validation
- ⚡ **Performance optimized** - Persistent SQLite index, concurrent operations, and streaming for large vaults
- 🚀 **Bulk operations** - Create folder hierarchies and move entire folders with all their contents

## Prerequisites

- **Obsidian** vault on your local filesystem
- **Python 3.10+** installed on your system
- **Node.js** (optional, for running MCP Inspector)

## Installation

### Quick Install with Auto-Configuration (Claude Desktop)

**New in v2.0!** Configure Claude Desktop automatically with one command:

```bash
# Install and configure in one step
uvx --from obsidian-mcp obsidian-mcp-configure --vault-path /path/to/your/vault
```

This command will:
- ✅ Automatically find your Claude Desktop config
- ✅ Add the Obsidian MCP server
- ✅ Migrate old REST API configs to v2.0
- ✅ Create a backup of your existing config
- ✅ Work on macOS, Windows, and Linux

### Manual Configuration

1. **Locate your Obsidian vault:**
   - Find the path to your Obsidian vault on your filesystem
   - Example: `/Users/yourname/Documents/MyVault` or `C:\Users\YourName\Documents\MyVault`

2. **Configure your AI tool:**

   <details>
   <summary><b>Claude Desktop</b></summary>
   
   Edit your Claude Desktop config file:
   - macOS: `~/Library/Application Support/Claude/claude_desktop_config.json`
   - Windows: `%APPDATA%\Claude\claude_desktop_config.json`

   ```json
   {
     "mcpServers": {
       "obsidian": {
         "command": "uvx",
         "args": ["obsidian-mcp"],
         "env": {
           "OBSIDIAN_VAULT_PATH": "/path/to/your/obsidian/vault"
         }
       }
     }
   }
   ```
   </details>

   <details>
   <summary><b>Cursor IDE</b></summary>
   
   Add to your Cursor settings:
   - Project-specific: `.cursor/mcp.json` in your project directory
   - Global: `~/.cursor/mcp.json` in your home directory

   ```json
   {
     "mcpServers": {
       "obsidian": {
         "command": "uvx",
         "args": ["obsidian-mcp"],
         "env": {
           "OBSIDIAN_VAULT_PATH": "/path/to/your/obsidian/vault"
         }
       }
     }
   }
   ```
   
   Then: Open Settings → Cursor Settings → Enable MCP
   </details>

   <details>
   <summary><b>Windsurf IDE</b></summary>
   
   Edit your Windsurf config file:
   - Location: `~/.codeium/windsurf/mcp_config.json`

   ```json
   {
     "mcpServers": {
       "obsidian": {
         "command": "uvx",
         "args": ["obsidian-mcp"],
         "env": {
           "OBSIDIAN_VAULT_PATH": "/path/to/your/obsidian/vault"
         }
       }
     }
   }
   ```
   
   Then: Open Windsurf Settings → Advanced Settings → Cascade → Add Server → Refresh
   </details>

3. **Restart your AI tool** to load the new configuration.

That's it! The server will now be available in your AI tool with access to your Obsidian vault.

> **Note:** This uses `uvx` which automatically downloads and runs the server in an isolated environment. Most users won't need to install anything else. If you don't have `uv` installed, you can also use `pipx install obsidian-mcp` and change the command to `"obsidian-mcp"` in the config.

#### Try It Out

Here are some example prompts to get started:

- "Show me all notes I modified this week"
- "Create a new daily note for today with my meeting agenda"
- "Search for all notes about project planning"
- "Read my Ideas/startup.md note"

### Development Installation

1. **Clone the repository:**
   ```bash
   git clone https://github.com/natestrong/obsidian-mcp
   cd obsidian-mcp
   ```

2. **Set up Python environment:**
   ```bash
   # Using pyenv (recommended)
   pyenv virtualenv 3.12.9 obsidian-mcp
   pyenv activate obsidian-mcp
   
   # Or using venv
   python -m venv venv
   source venv/bin/activate  # On Windows: venv\Scripts\activate
   ```

3. **Install dependencies:**
   ```bash
   pip install -r requirements.txt
   ```

4. **Configure environment variables:**
   ```bash
   export OBSIDIAN_VAULT_PATH="/path/to/your/obsidian/vault"
   ```

5. **Run the server:**
   ```bash
   python -m obsidian_mcp.server
   ```

6. **Add to Claude Desktop (for development):**

   Edit your Claude Desktop config file:
   - macOS: `~/Library/Application Support/Claude/claude_desktop_config.json`
   - Windows: `%APPDATA%\Claude\claude_desktop_config.json`

   ```json
   {
     "mcpServers": {
       "obsidian": {
         "command": "/path/to/python",
         "args": ["-m", "obsidian_mcp.server"],
         "cwd": "/path/to/obsidian-mcp",
         "env": {
           "PYTHONPATH": "/path/to/obsidian-mcp",
           "OBSIDIAN_VAULT_PATH": "/path/to/your/obsidian/vault"
         }
       }
     }
   }
   ```

## Project Structure

```
obsidian-mcp/
├── obsidian_mcp/
│   ├── server.py           # Main entry point with rich parameter schemas
│   ├── tools/              # Tool implementations
│   │   ├── note_management.py    # CRUD operations
│   │   ├── search_discovery.py   # Search and navigation
│   │   ├── organization.py       # Tags, moves, metadata
│   │   └── link_management.py    # Backlinks, outgoing links, broken links
│   ├── models/             # Pydantic models for validation
│   │   └── obsidian.py    # Note, SearchResult, VaultItem models
│   ├── utils/              # Shared utilities
│   │   ├── filesystem.py        # Direct filesystem access
│   │   ├── validators.py        # Path validation, sanitization
│   │   └── validation.py        # Comprehensive parameter validation
│   └── constants.py       # Constants and error messages
├── tests/
│   ├── run_tests.py       # Test runner
│   └── test_filesystem_integration.py # Integration tests
├── docs/                  # Additional documentation
├── requirements.txt       # Python dependencies
├── CLAUDE.md             # Instructions for Claude Code
└── README.md
```

## Available Tools

### Note Management

#### `read_note`
Read the content and metadata of a specific note.

**Parameters:**
- `path`: Path to the note (e.g., "Daily/2024-01-15.md")

**Returns:**
```json
{
  "path": "Daily/2024-01-15.md",
  "content": "# Daily Note\n\nContent here...",
  "metadata": {
    "tags": ["daily", "journal"],
    "aliases": [],
    "frontmatter": {}
  }
}
```

#### `create_note`
Create a new note or update an existing one.

**Parameters:**
- `path`: Path where the note should be created
- `content`: Markdown content of the note (consider adding tags for organization)
- `overwrite` (default: `false`): Whether to overwrite existing notes

**Best Practices:**
- Add relevant tags when creating notes to maintain organization
- Use `list_tags` to see existing tags and maintain consistency
- Tags can be added as inline hashtags (`#tag`) or in frontmatter

#### `update_note`
Update the content of an existing note.

⚠️ **IMPORTANT**: By default, this tool REPLACES the entire note content. Always read the note first if you need to preserve existing content.

**Parameters:**
- `path`: Path to the note to update
- `content`: New markdown content (REPLACES existing content unless using append)
- `create_if_not_exists` (default: `false`): Create if doesn't exist
- `merge_strategy` (default: `"replace"`): How to handle content
  - `"replace"`: Overwrites entire note content (default)
  - `"append"`: Adds new content to the end of existing content

**Safe Update Pattern:**
1. ALWAYS read first to preserve content
2. Modify the content as needed
3. Update with the complete new content
4. Or use append mode to add content to the end

#### `edit_note_section`
Edit a specific section of a note identified by a markdown heading.

**Parameters:**
- `path`: Path to the note to edit
- `section_identifier`: Markdown heading that identifies the section (e.g., "## Tasks", "### Status")
- `content`: Content to insert, replace, or append
- `operation` (default: `"insert_after"`): How to edit the section
  - `"insert_after"`: Add content after the section heading
  - `"insert_before"`: Add content before the section heading
  - `"replace"`: Replace entire section including heading
  - `"append_to_section"`: Add content at the end of the section
- `create_if_missing` (default: `false`): Create section if it doesn't exist

**Example usage:**
```python
# Add tasks to a specific section
await edit_note_section(
    "Daily/2024-01-15.md",
    "## Tasks",
    "- [ ] Review PR\n- [ ] Update docs",
    operation="append_to_section"
)

# Update a status section
await edit_note_section(
    "Projects/Website.md",
    "### Current Status",
    "### Current Status\n\nPhase 2 completed!",
    operation="replace"
)
```

**Use cases:**
- Adding items to task lists without rewriting the whole note
- Updating status sections in project notes
- Building up notes incrementally by section
- Inserting content at precise locations

#### `delete_note`
Delete a note from the vault.

**Parameters:**
- `path`: Path to the note to delete

### Search and Discovery

#### `search_notes`
Search for notes containing specific text or tags.

**Parameters:**
- `query`: Search query (supports Obsidian search syntax)
- `context_length` (default: `100`): Number of characters to show around matches
- `max_results` (default: `50`): Maximum number of results to return (1-500)

**Search Syntax:**
- Text search: `"machine learning"`
- Tag search: `tag:project` or `tag:#project`
  - Hierarchical tags: `tag:project/web` (exact match)
  - Parent search: `tag:project` (finds project, project/web, project/mobile)
  - Child search: `tag:web` (finds project/web, design/web)
- Path search: `path:Daily/`
- Property search: `property:status:active` or `property:priority:>2`
- Combined: `tag:urgent TODO`

**Returns:**
```json
{
  "results": [...],        // Array of matched notes
  "total_count": 150,      // Total matches found
  "limit": 50,             // max_results used
  "truncated": true        // More results available
}
```

**Property Search Examples:**
- `property:status:active` - Find notes where status = "active"
- `property:priority:>2` - Find notes where priority > 2
- `property:author:*john*` - Find notes where author contains "john"
- `property:deadline:*` - Find notes that have a deadline property
- `property:rating:>=4` - Find notes where rating >= 4
- `property:tags:project` - Find notes with "project" in their tags array
- `property:due_date:<2024-12-31` - Find notes with due dates before Dec 31, 2024

#### `search_by_date`
Search for notes by creation or modification date.

**Parameters:**
- `date_type` (default: `"modified"`): Either "created" or "modified"
- `days_ago` (default: `7`): Number of days to look back
- `operator` (default: `"within"`): Either "within" (last N days) or "exactly" (exactly N days ago)

**Returns:**
```json
{
  "query": "Notes modified within last 7 days",
  "count": 15,
  "results": [
    {
      "path": "Daily/2024-01-15.md",
      "date": "2024-01-15T10:30:00",
      "days_ago": 1
    }
  ]
}
```

**Example usage:**
- "Show me all notes modified today" → `search_by_date("modified", 0, "within")`
- "Show me all notes modified this week" → `search_by_date("modified", 7, "within")`
- "Find notes created in the last 30 days" → `search_by_date("created", 30, "within")`
- "What notes were modified exactly 2 days ago?" → `search_by_date("modified", 2, "exactly")`

#### `search_by_regex`
Search for notes using regular expressions for advanced pattern matching.

**Parameters:**
- `pattern`: Regular expression pattern to search for
- `flags` (optional): List of regex flags ("ignorecase", "multiline", "dotall")
- `context_length` (default: `100`): Characters to show around matches
- `max_results` (default: `50`): Maximum number of results

**When to use:**
- Finding code patterns (functions, imports, syntax)
- Searching for structured data
- Complex text patterns that simple search can't handle

**Common patterns:**
```python
# Find Python imports
"(import|from)\\s+fastmcp"

# Find function definitions
"def\\s+\\w+\\s*\\([^)]*\\):"

# Find TODO comments
"(TODO|FIXME)\\s*:?\\s*(.+)"

# Find URLs
"https?://[^\\s)>]+"

# Find code blocks
"```python([^`]+)```"
```

**Returns:**
```json
{
  "pattern": "def\\s+search\\w*",
  "count": 2,
  "results": [
    {
      "path": "code/utils.py",
      "match_count": 3,
      "matches": [
        {
          "match": "def search_notes",
          "line": 42,
          "context": "...async def search_notes(query)..."
        }
      ]
    }
  ]
}
```

#### `search_by_property`
Search for notes by their frontmatter property values with advanced filtering.

**Parameters:**
- `property_name`: Name of the property to search for
- `value` (optional): Value to compare against
- `operator` (default: `"="`): Comparison operator
- `context_length` (default: `100`): Characters of note content to include

**Operators:**
- `"="`: Exact match (case-insensitive)
- `"!="`: Not equal
- `">"`, `"<"`, `">="`, `"<="`: Numeric/date comparisons
- `"contains"`: Property value contains the search value
- `"exists"`: Property exists (value parameter ignored)

**Supported Property Types:**
- **Text/String**: Standard text comparison
- **Numbers**: Automatic numeric comparison for operators
- **Dates**: ISO format (YYYY-MM-DD) with intelligent date parsing
- **Arrays/Lists**: Searches within array items, comparisons use array length
- **Legacy properties**: Automatically handles `tag`→`tags`, `alias`→`aliases` migrations

**Returns:**
```json
{
  "property": "status",
  "operator": "=",
  "value": "active",
  "count": 5,
  "results": [
    {
      "path": "Projects/Website.md",
      "matches": ["status = active"],
      "context": "status: active\n\n# Website Redesign Project...",
      "property_value": "active"
    }
  ]
}
```

**Example usage:**
- Find all active projects: `search_by_property("status", "active")`
- Find high priority items: `search_by_property("priority", "2", ">")`
- Find notes with deadlines: `search_by_property("deadline", operator="exists")`
- Find notes by partial author: `search_by_property("author", "john", "contains")`

#### `list_notes`
List notes in your vault with optional recursive traversal.

**Parameters:**
- `directory` (optional): Specific directory to list (e.g., "Daily", "Projects")
- `recursive` (default: `true`): List all notes recursively

**Returns:**
```json
{
  "directory": "Daily",
  "recursive": true,
  "count": 365,
  "notes": [
    {"path": "Daily/2024-01-01.md", "name": "2024-01-01.md"},
    {"path": "Daily/2024-01-02.md", "name": "2024-01-02.md"}
  ]
}
```

#### `list_folders`
List folders in your vault with optional recursive traversal.

**Parameters:**
- `directory` (optional): Specific directory to list from
- `recursive` (default: `true`): Include all nested subfolders

**Returns:**
```json
{
  "directory": "Projects",
  "recursive": true,
  "count": 12,
  "folders": [
    {"path": "Projects/Active", "name": "Active"},
    {"path": "Projects/Archive", "name": "Archive"},
    {"path": "Projects/Ideas", "name": "Ideas"}
  ]
}
```

### Organization

#### `create_folder`
Create a new folder in the vault, including all parent folders in the path.

**Parameters:**
- `folder_path`: Path of the folder to create (e.g., "Research/Studies/2024")
- `create_placeholder` (default: `true`): Whether to create a placeholder file

**Returns:**
```json
{
  "folder": "Research/Studies/2024",
  "created": true,
  "placeholder_file": "Research/Studies/2024/.gitkeep",
  "folders_created": ["Research", "Research/Studies", "Research/Studies/2024"]
}
```

**Note:** This tool will create all necessary parent folders. For example, if "Research" exists but "Studies" doesn't, it will create both "Studies" and "2024".

#### `move_note`
Move a note to a new location, optionally with a new name.

**Parameters:**
- `source_path`: Current path of the note
- `destination_path`: New path for the note (can include new filename)
- `update_links` (default: `true`): Update links if filename changes

**Features:**
- Can move to a different folder: `move_note("Inbox/Note.md", "Archive/Note.md")`
- Can move AND rename: `move_note("Inbox/Old.md", "Archive/New.md")`
- Automatically detects if filename changes and updates all wiki-style links
- No link updates needed for simple folder moves (Obsidian links work by name)
- Preserves link aliases when updating

**Returns:**
```json
{
  "success": true,
  "source": "Inbox/Quick Note.md",
  "destination": "Projects/Project Plan.md",
  "renamed": true,
  "details": {
    "links_updated": 5,
    "notes_updated": 3
  }
}
```

#### `rename_note`
Rename a note and automatically update all references to it throughout your vault.

**Parameters:**
- `old_path`: Current path of the note
- `new_path`: New path for the note (must be in same directory)
- `update_links` (default: `true`): Automatically update all wiki-style links

**Returns:**
```json
{
  "success": true,
  "old_path": "Projects/Old Name.md",
  "new_path": "Projects/New Name.md",
  "operation": "renamed",
  "details": {
    "links_updated": 12,
    "notes_updated": 8,
    "link_update_details": [
      {"note": "Daily/2024-01-15.md", "updates": 2},
      {"note": "Ideas/Related.md", "updates": 1}
    ]
  }
}
```

**Features:**
- Automatically finds and updates all `[[wiki-style links]]` to the renamed note
- Preserves link aliases (e.g., `[[Old Name|Display Text]]` → `[[New Name|Display Text]]`)
- Handles various link formats: `[[Note]]`, `[[Note.md]]`, `[[Note|Alias]]`
- Shows which notes were updated for transparency
- Can only rename within the same directory (use `move_note` to change directories)

#### `move_folder`
Move an entire folder and all its contents to a new location.

**Parameters:**
- `source_folder`: Current folder path (e.g., "Projects/Old")
- `destination_folder`: New folder path (e.g., "Archive/Projects/Old")
- `update_links` (default: `true`): Update links in other notes (future enhancement)

**Returns:**
```json
{
  "source": "Projects/Completed",
  "destination": "Archive/2024/Projects",
  "moved": true,
  "notes_moved": 15,
  "folders_moved": 3,
  "links_updated": 0
}
```

#### `add_tags`
Add tags to a note's frontmatter.

**Parameters:**
- `path`: Path to the note
- `tags`: List of tags to add (without # prefix)

**Supports hierarchical tags:**
- Simple tags: `["project", "urgent"]`
- Hierarchical tags: `["project/web", "work/meetings/standup"]`
- Mixed: `["urgent", "project/mobile", "status/active"]`

#### `update_tags`
Update tags on a note - either replace all tags or merge with existing.

**Parameters:**
- `path`: Path to the note
- `tags`: New tags to set (without # prefix)
- `merge` (default: `false`): If true, adds to existing tags. If false, replaces all tags

**Perfect for AI workflows:**
```
User: "Tell me what this note is about and add appropriate tags"
AI: [reads note] "This note is about machine learning research..."
AI: [uses update_tags to set tags: ["ai", "research", "neural-networks"]]
```

#### `remove_tags`
Remove tags from a note's frontmatter.

**Parameters:**
- `path`: Path to the note
- `tags`: List of tags to remove

#### `batch_update_properties`
Batch update properties across multiple notes.

**Parameters:**
- `search_criteria`: How to find notes - must include one of:
  - `query`: Search query string (e.g., "tag:project status:active")
  - `folder`: Folder path with optional `recursive` flag
  - `files`: Explicit list of file paths
- `property_updates` (optional): Properties to add/update in frontmatter
- `properties_to_remove` (optional): List of property names to remove
- `add_tags` (optional): Tags to add (additive)
- `remove_tags` (optional): Tags to remove
- `remove_inline_tags` (default: `false`): Also remove tags from note body

**Examples:**
```python
# Archive completed projects
{
  "search_criteria": {"query": "tag:project status:completed"},
  "property_updates": {"archived": true, "year": 2024},
  "add_tags": ["archived"]
}

# Remove draft tags everywhere
{
  "search_criteria": {"query": "tag:draft"},
  "remove_tags": ["draft"],
  "remove_inline_tags": true
}
```

**Returns:**
```json
{
  "total_notes": 10,
  "updated": 8,
  "failed": 2,
  "details": [...],
  "errors": [...]
}
```

#### `get_note_info`
Get metadata and statistics about a note without retrieving its full content.

**Parameters:**
- `path`: Path to the note

**Returns:**
```json
{
  "path": "Projects/AI Research.md",
  "exists": true,
  "metadata": {
    "tags": ["ai", "research"],
    "aliases": [],
    "frontmatter": {}
  },
  "stats": {
    "size_bytes": 4523,
    "word_count": 823,
    "link_count": 12
  }
}
```

### Image Management

#### `read_image`
View an image from your vault. Images are automatically resized to a maximum width of 800px for optimal display in Claude Desktop.

**Parameters:**
- `path`: Path to the image file (e.g., "Attachments/screenshot.png")

**Returns:**
- A resized image object that can be viewed directly in Claude Desktop

**Supported formats:**
- PNG, JPG/JPEG, GIF, BMP, WebP

#### `view_note_images`
Extract and view all images embedded in a note.

**Parameters:**
- `path`: Path to the note containing images

**Returns:**
```json
{
  "note_path": "Projects/Design Mockups.md",
  "image_count": 3,
  "images": [
    {
      "path": "Attachments/mockup1.png",
      "alt_text": "Homepage design",
      "image": "<FastMCP Image object>"
    }
  ]
}
```

**Use cases:**
- Analyze screenshots and diagrams in your notes
- Review design mockups and visual documentation
- Extract visual information for AI analysis

#### `list_tags`
List all unique tags used across your vault with usage statistics.

**Parameters:**
- `include_counts` (default: `true`): Include usage count for each tag
- `sort_by` (default: `"name"`): Sort by "name" or "count"
- `include_files` (default: `false`): Include list of file paths that contain each tag

**Returns:**
```json
{
  "items": [
    {
      "name": "project", 
      "count": 42,
      "files": ["Projects/Web.md", "Projects/Mobile.md"]  // if include_files=true
    },
    {"name": "meeting", "count": 38},
    {"name": "idea", "count": 15}
  ],
  "total": 25,
  "scope": {"include_counts": true, "sort_by": "name", "include_files": false}
}
```

**Note:** Hierarchical tags are listed as separate entries, showing both parent and full paths.

**Performance Notes:**
- Fast for small vaults (<1000 notes)
- May take several seconds for large vaults
- Uses concurrent batching for optimization

### Link Management

**⚡ Performance Note:** Link management tools have been heavily optimized in v1.1.5:
- **84x faster** link validity checking
- **96x faster** broken link detection
- **2x faster** backlink searches
- Includes automatic caching and batch processing

#### `find_orphaned_notes`
Find notes that may need organization or cleanup based on various criteria.

**Parameters:**
- `orphan_type` (default: `"no_backlinks"`): Criteria for identifying orphaned notes
  - `"no_backlinks"`: Notes with no incoming links (most common)
  - `"no_links"`: Notes with no incoming OR outgoing links
  - `"no_tags"`: Notes without any tags
  - `"no_metadata"`: Notes with minimal/no frontmatter properties
  - `"isolated"`: Notes with no links AND no tags
- `exclude_folders` (optional): List of folders to exclude (default: ["Templates", "Archive", "Daily"])
- `min_age_days` (optional): Only include notes older than this many days

**Returns:**
```json
{
  "count": 23,
  "orphaned_notes": [
    {
      "path": "Random Thoughts/Old Idea.md",
      "reason": "No incoming links",
      "modified": "2023-06-15T10:30:00Z",
      "size": 245,
      "word_count": 42
    }
  ],
  "stats": {
    "total_notes_scanned": 500,
    "excluded_folders": ["Templates", "Archive", "Daily"],
    "orphan_type": "no_backlinks"
  }
}
```

**Use cases:**
- Regular vault maintenance and cleanup
- Finding forgotten or disconnected notes
- Identifying notes that need better organization
- Preparing for vault reorganization

#### `get_backlinks`
Find all notes that link to a specific note.

**Parameters:**
- `path`: Path to the note to find backlinks for
- `include_context` (default: `true`): Whether to include text context around links
- `context_length` (default: `100`): Number of characters of context to include

**Returns:**
```json
{
  "target_note": "Projects/AI Research.md",
  "backlink_count": 5,
  "backlinks": [
    {
      "source_path": "Daily/2024-01-15.md",
      "link_text": "AI Research",
      "link_type": "wiki",
      "context": "...working on the [[AI Research]] project today..."
    }
  ]
}
```

**Use cases:**
- Understanding which notes reference a concept or topic
- Discovering relationships between notes
- Building a mental map of note connections

#### `get_outgoing_links`
List all links from a specific note.

**Parameters:**
- `path`: Path to the note to extract links from
- `check_validity` (default: `false`): Whether to check if linked notes exist

**Returns:**
```json
{
  "source_note": "Projects/Overview.md",
  "link_count": 8,
  "links": [
    {
      "path": "Projects/AI Research.md",
      "display_text": "AI Research",
      "type": "wiki",
      "exists": true
    }
  ]
}
```

**Use cases:**
- Understanding what a note references
- Checking note dependencies before moving/deleting
- Exploring the structure of index or hub notes

#### `find_broken_links`
Find all broken links in the vault, a specific directory, or a single note.

**Parameters:**
- `directory` (optional): Specific directory to check (defaults to entire vault)
- `single_note` (optional): Check only this specific note for broken links

**Returns:**
```json
{
  "directory": "/",
  "broken_link_count": 3,
  "affected_notes": 2,
  "broken_links": [
    {
      "source_path": "Projects/Overview.md",
      "broken_link": "Projects/Old Name.md",
      "link_text": "Old Project",
      "link_type": "wiki"
    }
  ]
}
```

**Use cases:**
- After renaming or deleting notes
- Regular vault maintenance
- Before reorganizing folder structure

## Testing

### Running Tests

```bash
# Run all tests
python tests/run_tests.py

# Or with pytest directly
pytest tests/
```

Tests create temporary vaults for isolation and don't require a running Obsidian instance.

### Testing with MCP Inspector

1. **Set your vault path:**
   ```bash
   export OBSIDIAN_VAULT_PATH="/path/to/your/vault"
   ```

2. **Run the MCP Inspector:**
   ```bash
   npx @modelcontextprotocol/inspector python -m obsidian_mcp.server
   ```

3. **Open the Inspector UI** at `http://localhost:5173`

4. **Test the tools** interactively with your actual vault

## Integration with Claude Desktop

For development installations, see the [Development Installation](#development-installation) section above.

## Enhanced Error Handling

The server provides detailed, actionable error messages to help AI systems recover from errors:

### Example Error Messages

**Invalid Path**:
```
Invalid note path: '../../../etc/passwd'. 
Valid paths must: 1) End with .md or .markdown, 2) Use forward slashes (e.g., 'folder/note.md'), 
3) Not contain '..' or start with '/', 4) Not exceed 255 characters. 
Example: 'Daily/2024-01-15.md' or 'Projects/My Project.md'
```

**Empty Search Query**:
```
Search query cannot be empty. 
Valid queries: 1) Keywords: 'machine learning', 
2) Tags: 'tag:#project', 3) Paths: 'path:Daily/', 
4) Combined: 'tag:#urgent TODO'
```

**Invalid Date Parameters**:
```
Invalid date_type: 'invalid'. 
Must be either 'created' or 'modified'. 
Use 'created' to find notes by creation date, 'modified' for last edit date
```

## Troubleshooting

### "Vault not found" error
- Ensure the OBSIDIAN_VAULT_PATH environment variable is set correctly
- Verify the path points to an existing Obsidian vault directory
- Check that you have read/write permissions for the vault directory

### Tags not showing up
- Ensure tags are properly formatted (with or without # prefix)
- Tags in frontmatter should be in YAML array format: `tags: [tag1, tag2]`
- Inline tags should use the # prefix: `#project #urgent`
- Tags inside code blocks are automatically excluded

### "File too large" error
- The server has a 10MB limit for note files and 50MB for images
- This prevents memory issues with very large files
- Consider splitting large notes into smaller ones

### "Module not found" error
- Ensure your virtual environment is activated
- Run from the project root: `python -m obsidian_mcp.server`
- Verify all dependencies are installed: `pip install -r requirements.txt`

### Empty results when listing notes
- Specify a directory when using `list_notes` (e.g., "Daily", "Projects")
- Root directory listing requires recursive implementation
- Check if notes are in subdirectories

### Tags not updating
- Ensure notes have YAML frontmatter section for frontmatter tags
- Frontmatter must include a `tags:` field (even if empty)
- The server now properly reads both frontmatter tags and inline hashtags

## Best Practices for AI Assistants

### Preventing Data Loss

1. **Always read before updating**: The `update_note` tool REPLACES content by default
2. **Use append mode for additions**: When adding to existing notes, use `merge_strategy="append"`
3. **Check note existence**: Use `read_note` to verify a note exists before modifying
4. **Be explicit about overwrites**: Only use `overwrite=true` when intentionally replacing content

### Recommended Workflows

**Safe note editing:**
1. Read the existing note first
2. Modify the content as needed
3. Update with the complete new content

**Adding to daily notes:**
- Use `merge_strategy="append"` to add entries without losing existing content
- Use `edit_note_section` to add content to specific sections (like "## Tasks" or "## Notes")

**Creating new notes:**
- Use `create_note` with `overwrite=false` (default) to prevent accidental overwrites
- Add relevant tags to maintain organization
- Use `list_tags` to see existing tags and avoid creating duplicates

**Organizing with tags:**
- Check existing tags with `list_tags` before creating new ones
- Maintain consistent naming (e.g., use "project" not "projects")
- Use tags to enable powerful search and filtering

## Security Considerations

- **Vault path access** - The server only accesses the specified vault directory
- The server validates all paths to prevent directory traversal attacks
- File operations are restricted to the vault directory
- Large files are rejected to prevent memory exhaustion
- Path validation prevents access to system files

## Development

### Code Style
- Uses FastMCP framework for MCP implementation
- Pydantic models for type safety and validation
- Modular architecture with separated concerns
- Comprehensive error handling and user-friendly messages

### Adding New Tools
1. Create tool function in appropriate module under `src/tools/`
2. Add Pydantic models if needed in `src/models/`
3. Register the tool in `src/server.py` with the `@mcp.tool()` decorator
4. Include comprehensive docstrings
5. Add tests in `tests/`
6. Test with MCP Inspector before deploying

## Changelog

### v2.1.6 (2025-01-30)
- 🔍 **Find orphaned notes** - New `find_orphaned_notes` tool for comprehensive vault maintenance
  - Multiple orphan criteria: no backlinks, no links, no tags, no metadata, or isolated notes
  - Configurable folder exclusions and age filtering
  - Returns detailed statistics including size and word count for each orphaned note
  - Helps identify forgotten or disconnected notes that need organization
- 🐛 **Bug fixes**:
  - Fixed JSON string parsing for tag parameters in multiple tools
  - Fixed various errors in `find_orphaned_notes` implementation

### v2.1.5 (2025-01-30)
- 🔍 **New find_orphaned_notes tool** - Find notes that need organization
  - Multiple criteria: no backlinks, no links, no tags, no metadata, or isolated
  - Smart defaults exclude Templates, Archive, and Daily folders
  - Optional age filtering to exclude recent work-in-progress notes
  - Returns paths, reasons, and metadata for each orphaned note

### v2.1.4 (2025-01-30)
- 🔍 **Enhanced default search** - Search now automatically includes both filename AND content matches
  - Filename matches are ranked higher for intuitive "find note by name" behavior
  - No more need to use `path:` prefix for common searches
  - Added `match_type` field to distinguish filename vs content matches
- 🐛 **Fixed quote validation** - Notes with quotes in filenames now work correctly

### v2.1.3 (2025-01-30)
- 🏷️ **Enhanced list_tags** - Added `include_files` option to get all files containing each tag
- 🔧 **Fixed update_tags** - Properly handles bullet list YAML format without creating malformed frontmatter
- 🚀 **Batch update properties** - New `batch_update_properties` tool for bulk metadata operations
  - Update any frontmatter property across multiple notes
  - Add/remove tags with optional inline tag removal from note body
  - Search by query, folder, or explicit file list
  - Proper YAML structure preservation
- 🧹 **Code cleanup** - Removed deprecated OBSIDIAN_REST_API_KEY references from codebase
- 📝 **Better error messages** - More actionable feedback following MCP best practices

### v2.0.3 (2025-01-24)
- ✏️ **Section-based editing** - New `edit_note_section` tool for precise content insertion and updates
- 🎯 **Four edit operations** - Insert before/after headings, replace sections, or append to section ends
- 📍 **Smart section detection** - Case-insensitive markdown heading matching with hierarchy support
- 🔧 **Create missing sections** - Optionally create sections if they don't exist
- 📝 **Preserve note structure** - Edit specific parts without rewriting entire notes

### v2.0.2 (2025-01-24)
- 🎯 **Simplified architecture** - Removed memory index, SQLite is now the only search method
- 🔍 **Search transparency** - Added metadata to search results (total_count, truncated, limit)
- ⚙️ **Configurable search limits** - Exposed max_results parameter (1-500, default 50)
- 🧹 **Reduced tool clutter** - Removed unnecessary index management tools
- 📝 **Reasoning-friendly improvements** - Enhanced all tools with proper Field annotations and comprehensive docstrings
- 🚀 **Better AI reasoning** - Added "When to use" and "When NOT to use" sections to all tools
- ⚡ **Performance notes** - Added explicit performance guidance for expensive operations
- 🔧 **Cleaner codebase** - Removed ~500 lines of memory index code, reducing maintenance burden

### v2.0.0 (2025-01-24)
- 🚀 **Complete architecture overhaul** - Migrated from REST API to direct filesystem access
- ⚡ **5x faster searches** with persistent SQLite indexing that survives between sessions
- 🖼️ **Image support** - View and analyze images from your vault with automatic resizing
- 🔍 **Regex power search** - Find complex patterns with optimized streaming
- 🗂️ **Property search** - Query notes by frontmatter properties with advanced operators
- 🎯 **One-command setup** - Auto-configure Claude Desktop with `uvx --from obsidian-mcp obsidian-mcp-configure`
- 📦 **90% less memory usage** - Efficient streaming architecture
- 🔄 **No plugins required** - Works offline without needing Obsidian to be running
- ✨ **Incremental indexing** - Only re-indexes changed files
- 🔧 **Migration support** - Automatically detects and migrates old REST API configs
- 🏷️ **Enhanced hierarchical tag support** - Full support for Obsidian's nested tag system
  - Search parent tags to find all children (e.g., `tag:project` finds `project/web`)
  - Search child tags across any hierarchy (e.g., `tag:web` finds `project/web`, `design/web`)
  - Exact hierarchical matching (e.g., `tag:project/web`)
- 🔍 **Improved metadata handling** - Better alignment with Obsidian's property system
  - Automatic migration of legacy properties (`tag`→`tags`, `alias`→`aliases`)
  - Array/list property searching (find items within arrays)
  - Date property comparisons with ISO format support
  - Numeric comparisons for array lengths
- 📝 **AI-friendly tool definitions** - Updated all tool descriptions for better LLM understanding
  - Added hierarchical tag examples to all tag-related tools
  - Enhanced property search documentation
  - Clearer parameter descriptions following MCP best practices

### v1.1.8 (2025-01-15)
- 🔧 Fixed FastMCP compatibility issue that prevented PyPI package from running
- 📦 Updated to FastMCP 2.8.1 for better stability
- 🐛 Fixed Pydantic V2 deprecation warnings (migrated to @field_validator)
- ✨ Changed FastMCP initialization to use 'instructions' parameter
- 🚀 Improved compatibility with uvx and pipx installation methods

### v1.1.7 (2025-01-10)
- 🔄 Changed default API endpoint to HTTP (`http://127.0.0.1:27123`) for easier setup
- 📝 Updated documentation to reflect HTTP as default, HTTPS as optional
- 🔧 Added note about automatic trailing slash handling in URLs
- ✨ Improved first-time user experience with zero-configuration setup

### v1.1.6 (2025-01-10)
- 🐛 Fixed timeout errors when creating or updating large notes
- ⚡ Added graceful timeout handling for better reliability with large content
- 🔧 Improved error reporting to prevent false failures on successful operations

### v1.1.5 (2025-01-09)
- ⚡ **Massive performance optimization for link management:**
  - 84x faster link validity checking
  - 96x faster broken link detection  
  - 2x faster backlink searches
  - Added automatic caching and batch processing
- 🔧 Optimized concurrent operations for large vaults
- 📝 Enhanced documentation for performance considerations

### v1.1.4 (2025-01-09)
- 🔗 Added link