hyunjae-labs/lore

Semantic search across your Claude Code **and** OpenAI Codex CLI conversations.
Find anything you've ever discussed -- across all projects, all sessions, any branch, any agent.
Features
- **Hybrid search (vector + keyword)**
Combines multilingual-e5-small embeddings with FTS5/BM25 via Reciprocal Rank Fusion. Finds results by meaning *and* exact terms.
- **Multi-agent: Claude Code + Codex CLI**
Indexes both ~/.claude/projects/ (Claude Code) and ~/.codex/sessions/ (OpenAI Codex CLI) in the same DB. Codex sessions are grouped by cwd from session_meta, surfaced as codex- virtual projects so you can search them together or filter to one agent.
- **Fully local, zero API keys**
Everything runs on your machine. ONNX Runtime for embedding, sqlite-vec for storage. No data leaves your device.
- **Auto-index on session end**
A SessionEnd hook automatically indexes all new sessions in the background. No manual triggers needed.
- **Background indexing**
Manual index triggers return instantly. Monitor progress while you keep working. Search what's already indexed while the rest catches up.
- **Opt-out by default**
All projects are indexed automatically. Exclude the ones you don't want. No registration needed.
- **Conversation-aware chunking**
Splits by logical turns (user question + full assistant response chain), not arbitrary token windows. Handles tool-use chains, thinking blocks, and multi-step interactions correctly.
- **100+ languages**
Korean, Japanese, Chinese, English, and 90+ more. CJK-aware token estimation for accurate chunking.
Quick Start
Add to Claude Code
Add to OpenAI Codex CLI
Alternative: global install (faster startup, works offline)
Usage
Once connected, the AI can use lore's tools directly:
**First time setup:**
1. **Index** -- index() scans all projects automatically, runs in background
2. **Search** -- ask anything about past conversations
3. **Exclude** (optional) -- hide noisy projects you don't care about
Tools
| Tool | Purpose |
|------|---------|
| manage_projects | Exclude/include projects from indexing (opt-out model) |
| index | Start background indexing. All non-excluded projects. Modes: incremental (default), rebuild, cancel |
| status | Check indexing progress, ETA, skip reasons, DB health |
| search | Semantic + keyword search across conversations |
| get_context | Expand search results with surrounding conversation |
| list_sessions | Browse indexed sessions by project |
Why This Exists
Claude Code stores every conversation as a JSONL transcript in ~/.claude/projects/, and OpenAI Codex CLI stores its rollouts in ~/.codex/sessions/YYYY/MM/DD/. After a few weeks, you have hundreds of sessions across dozens of projects, often spread across both agents -- discussions about architecture decisions, debugging sessions, code reviews, and design explorations.
But there's no way to search through them. You can't ask "what approach did we take for the auth middleware?" or "which project had that database migration discussion?"
Existing tools either require cloud APIs, spawn zombie processes, or treat conversations as generic documents. lore is purpose-built for AI coding sessions: it understands turn boundaries, tool-use chains, and thinking blocks, and parses both Claude Code and Codex JSONL formats natively. It runs entirely locally with zero dependencies beyond Node.js.