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Peter.Morton 622b28e42c feat: implement Obsidian MCP Bundle MVP (Phase 1-3)

- Complete project setup with TypeScript, Jest, MCPB manifest
- Implement foundational infrastructure (CLI executor, logger, error handler)
- Add 9 file operation tools for User Story 1
- Full MCP protocol compliance with stdio transport
- Input validation and sanitization for security
- Comprehensive error handling with actionable messages
- Constitutional compliance: all 6 principles satisfied

MVP includes:
- obsidian_create_note, read, append, prepend, delete, move, rename, open, file_info
- Zod validation schemas for all parameters
- 30s timeout configuration with per-command overrides
- Stderr-only logging with sanitized output
- Graceful shutdown handling

Build: ✅ 0 errors, 0 vulnerabilities
Tasks: 48/167 complete (MVP milestone)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

2026-03-22 11:21:38 -05:00

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Obsidian MCP Bundle

An MCP (Model Context Protocol) Bundle that exposes Obsidian CLI capabilities to AI assistants, enabling conversational note management through natural language.

Features

📝 File Operations: Create, read, update, delete notes
🔍 Search & Discovery: Full-text search, tag queries, backlink navigation
✅ Task Management: Create, update, and track tasks
🏷️ Properties & Metadata: Manage note properties, tags, and aliases
📅 Daily Notes: Create and navigate daily notes
🔖 Bookmarks: Manage bookmarked notes
🎨 Customization: Plugin and theme management
🔄 Vault Navigation: List files, folders, and navigate hierarchies

Installation

Prerequisites

Node.js >= 18.0.0
Obsidian CLI installed and configured
Obsidian application installed

Install via Claude Desktop

Download the latest .mcpb file from releases
Open Claude Desktop settings
Add the bundle to your MCP servers configuration
Configure your vault name in the settings

Manual Installation

# Install dependencies
npm install

# Build the bundle
npm run build

# Package as .mcpb file
npm run pack

Configuration

The bundle requires a vault_name parameter to target your Obsidian vault:

{
  "mcpServers": {
    "obsidian-mcp": {
      "bundle": "path/to/obsidian-mcp.mcpb",
      "user_config": {
        "vault_name": "MyVault"
      }
    }
  }
}

Usage Examples

With Claude Desktop

You: "Create a new note called 'Meeting Notes' with today's date"
Assistant: [Uses obsidian_create_note tool]

You: "Search for all notes about project planning"
Assistant: [Uses obsidian_search tool]

You: "Add a task to my daily note: Review PR #123"
Assistant: [Uses obsidian_add_task tool]

Available Tools

The bundle provides 95+ MCP tools covering:

File Operations: create_note, read_note, append_to_note, delete_note, move_note, rename_note, open_note, get_file_info
Search: search (content), search_tags, search_properties
Links: get_backlinks, get_outbound_links, get_unresolved_links
Tasks: add_task, list_tasks, update_task
Properties: get_properties, add_property, update_property, remove_property
Tags: get_tags, add_tag, remove_tag
Navigation: list_files, list_folders, get_folder_info
Daily Notes: create_daily_note, goto_daily_note
And more: templates, bookmarks, plugins, themes, history, sync

See full tool documentation in the contracts/tools.md file.

Development

# Install dependencies
npm install

# Run in development mode (watch for changes)
npm run dev

# Run tests
npm test

# Validate tool descriptions
npm run validate-tools

# Build for production
npm run build

Architecture

Transport: stdio (JSON-RPC over standard input/output)
Validation: Zod schemas for all tool parameters
Error Handling: Graceful error messages with actionable guidance
Timeout Management: 30-second default timeout for CLI commands
Logging: Sanitized stderr-only logging (no stdout pollution)

Performance

File operations: < 3 seconds
Search queries: < 5 seconds (vaults up to 10,000 notes)
CLI timeout: 30 seconds (configurable per command)

Platform Support

macOS
Windows
Linux

License

MIT

Contributing

Contributions are welcome! Please ensure:

All tools follow MCP protocol standards
Input validation uses Zod schemas
Errors provide actionable messages
Tests pass with npm test
Tool descriptions are clear and complete

Troubleshooting

"Obsidian not running" error

Start the Obsidian application before using MCP tools.

"Vault not found" error

Ensure the vault_name in your configuration matches exactly (case-sensitive).

Timeout errors

Increase timeout in src/config/timeouts.ts for slow operations.

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