OMEGA Memory

Semantic search, knowledge rediscovery, and agent memory for your Obsidian vault. Find notes by meaning, not just keywords.

Features

Semantic Search

Search your vault by meaning. "What storage approach did we decide on" finds your note about "database choice" even though the words don't match. Powered by a local AI embedding model (bge-micro-v2, runs entirely on your machine).

Rediscover

Surfaces notes you haven't opened recently that are related to what you're working on now. Turns your vault from a graveyard into a living knowledge system.

Agent Memory

If you use OMEGA with Claude Code, Cursor, or Windsurf, see your coding agent's accumulated memories inside Obsidian. Decisions, lessons, and context from your coding sessions, all in one place.

Contradiction Detection

Scan your vault for notes that contain conflicting information. Results appear in a modal with similarity scores.

Duplicate Detection

Find near-identical content scattered across different notes. Keep your vault clean.

How It Works

OMEGA Memory indexes your vault using a local AI embedding model. The model runs inside your browser via WebAssembly, so your notes never leave your machine. On first install, the model (~17MB) downloads once and is cached for future use.

• Read-only: The plugin never modifies your vault files
• Local-first: All processing happens on your device
• No API keys: Works without any external accounts or configuration
• Zero config: Install, enable, search

Installation

From Community Plugins (recommended)

1. Open Obsidian Settings
2. Go to Community Plugins, click Browse
3. Search for "OMEGA Memory"
4. Click Install, then Enable

Manual

1. Download main.js, manifest.json, and sql-wasm.wasm from the latest release
2. Create a folder .obsidian/plugins/omega-memory/ in your vault
3. Copy the three files into that folder
4. Enable the plugin in Obsidian Settings > Community Plugins

Usage

• Click the search icon in the left ribbon, or use Cmd/Ctrl+P > "OMEGA: Semantic search"
• Type a question or concept in the search box
• Click any result to open the note
• The Rediscover section updates as you navigate between notes
• Use Cmd/Ctrl+P > "OMEGA: Find contradictions" to scan for conflicting content
• Use Cmd/Ctrl+P > "OMEGA: Find duplicates" to find overlapping content

OMEGA Integration

OMEGA Memory works standalone with no dependencies. If you also use OMEGA (pip install omega-memory) for AI agent memory, the plugin automatically detects it and shows your agent's memories in the sidebar.

OMEGA Pro ($19/mo) unlocks:

• Agent Bridge: Your coding agent can search your Obsidian vault during sessions
• Multi-vault: Index and search across multiple vaults
• Cloud sync: Sync your index across machines

Network Usage

This plugin makes the following network requests:

• First use: Downloads an AI embedding model (~17MB) from HuggingFace Hub via cdn.jsdelivr.net. Cached locally after download.
• First use: Downloads sql-wasm.wasm (~644KB) from cdn.jsdelivr.net. Cached locally after download.
• Pro license only: If you enter a Pro license key, it is validated once against admin.omegamax.co. The key is cached for 24 hours.

Your notes are never sent to any external server. All search and indexing happens locally on your machine.

Performance

• First install: ~15-30 seconds (model download + initial indexing)
• Subsequent launches: ~2-5 seconds (model load from cache)
• Search latency: <200ms per query
• Indexing: ~32 notes per second (batched embedding)
• Bundle size: ~91KB

Commands

Command	Description
Semantic search	Open the search sidebar
Memory timeline	Chronological view of recent vault activity
Re-index vault	Force re-index all notes
Find contradictions	Scan vault for conflicting content
Find duplicates	Find near-identical content across notes

License

Apache-2.0

Copyright 2025-2026 Kokyo Keisho Zaidan Stichting