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@folio-agent/handler

v0.4.0

Published

Chat handler (LangGraph.js on Cloudflare Workers) + knowledge ingestion CLI

Readme

@folio-agent/handler

静的サイト向けポートフォリオ受付チャットボットのチャットハンドラ(Cloudflare Workers 上の LangGraph.js StateGraph)と、ビルド時に知識ファイルを生成する ingest CLI を提供する。知識源はビルド時にシステムプロンプトへ全量同梱する CAG 方式で、検索基盤を持たない。

@folio-agent/widget とセットで使う。詳細(アーキテクチャ・設計判断・利用手順全体)はリポジトリの README を参照。

Usage

npm install @folio-agent/handler

# 対話ウィザードで初期設定(config・テーマCSS・APIルート雛形などを生成)
npx folio-agent-init

# ビルド時: 知識ファイルの生成(ウィザードが build スクリプトに追記する)
npx folio-agent-ingest folio-agent.config.json knowledge.json
import { createChatHandler, createGeminiGenerator } from "@folio-agent/handler";
import knowledgeDoc from "../knowledge.json";

const knowledge = knowledgeDoc.pages.map((p) => `# ${p.url}\n\n${p.text}`).join("\n\n");

export default {
  fetch: (request: Request, env: { DB: D1Database; GEMINI_API_KEY: string }) =>
    createChatHandler({
      db: env.DB,
      generateAnswer: createGeminiGenerator({ apiKey: env.GEMINI_API_KEY, knowledge }),
    })(request),
};

createChatHandler / createGeminiGenerator の両方に language: "en" を渡すと、定型文・ルーティングキーワード・システムプロンプトが英語になる(既定は ja)。

D1 スキーマは migrations/0001_init.sqlwrangler d1 migrations apply で適用する。