# session-indexer

session-indexerは、Claude Codeのセッション記録をSQLiteにインデックス化し、意味検索できるGitHubホスト型の開発者ツールです。プロジェクトごとにJSONLのセッション履歴を検索でき、埋め込みベースの検索が使えない場合はFTS5にフォールバックします。

- Findings24: <https://findings24.com/ja/products/session-indexer>
- ウェブサイト: <https://valpere.github.io/projects/session-indexer/>
- 料金: Freemium
- カテゴリー: AI開発者ツール, AI検索エンジン

## session-indexerとは？

Session-indexer is a developer tool for searching Claude Code session history on a per-project basis. It indexes JSONL transcripts into SQLite and then lets users retrieve past sessions with semantic search powered by bge-m3 embeddings through Ollama, with FTS5 available as a fallback.

The project is presented as a GitHub repository and appears to be aimed at developers who want a local, queryable record of Claude Code sessions rather than a generic note-taking or search app. Its core purpose is to make past sessions easier to find by turning transcript files into a searchable index.

## session-indexerでできること

### Indexes JSONL transcripts into SQLite

The project stores session history in SQLite, which makes the transcript data queryable in a structured local database instead of leaving it only as raw files.

### Semantic retrieval with bge-m3 embeddings

The page description states that search is performed using bge-m3 embeddings via Ollama, which indicates embedding-based matching for searching by meaning rather than exact text alone.

### FTS5 fallback search

When semantic retrieval is not used or not available, the project can fall back to SQLite FTS5, providing a text-search path over indexed transcript content.

### Per-project session scope

The product is described as per-project search over Claude Code history, suggesting the index is organized around individual project contexts rather than one global transcript pool.

### Repository includes project docs

The repository contains a docs directory and a .claude directory, indicating that usage and project-specific configuration/documentation are part of the codebase.

## 利用シーン

### Find a prior Claude Code discussion in one project

A developer can search session history for a specific project when they need to recover a decision, command, or troubleshooting thread from earlier Claude Code work.

### Locate information by meaning rather than exact wording

Semantic search is useful when the user remembers the topic of a session but not the exact phrase used in the transcript.

### Search when embedding retrieval is not available

If the embedding path is not in use, FTS5 provides a fallback for users who still need text-based retrieval over the indexed transcripts.

### Maintain a structured archive of transcripts

Developers can keep JSONL transcripts in SQLite so session history is easier to inspect and reuse later.

## よくある質問

### What does session-indexer index?

It indexes JSONL transcripts from Claude Code session history into SQLite.

### How does search work?

The project uses bge-m3 embeddings through Ollama for semantic retrieval, with FTS5 as a fallback.

### Is this a cloud service or a local tool?

The source describes a repository that indexes data into SQLite and does not indicate a hosted SaaS product.

### Does it support non-semantic search?

Yes. The page explicitly mentions FTS5 fallback.

### Where can I learn more about usage?

The repository includes docs and project files, but the provided page text does not show a full usage guide.

## クイック情報

- **Category**: Developer Tool
- **Primary task**: Semantic search over Claude Code session history
- **Data format**: JSONL transcripts
- **Storage**: SQLite
- **Search method**: bge-m3 embeddings via Ollama, with FTS5 fallback
- **Source domain**: github.com