diff --git a/README.ja.md b/README.ja.md
index cdb3d92..20cbcde 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -128,13 +128,22 @@ def create_user(req: func.HttpRequest, body: CreateUserRequest) -> CreateUserRes
 
 ## Ecosystem
 
-- [azure-functions-langgraph](https://github.com/yeongseon/azure-functions-langgraph) — LangGraph デプロイアダプター
-- [azure-functions-openapi](https://github.com/yeongseon/azure-functions-openapi) — OpenAPI と Swagger UI
-- [azure-functions-logging](https://github.com/yeongseon/azure-functions-logging) — 構造化ロギング
-- [azure-functions-doctor](https://github.com/yeongseon/azure-functions-doctor) — 診断 CLI
-- [azure-functions-scaffold](https://github.com/yeongseon/azure-functions-scaffold) — プロジェクトスキャフォールディング
-- [azure-functions-durable-graph](https://github.com/yeongseon/azure-functions-durable-graph) — Durable Functions ベースのグラフランタイム
-- [azure-functions-python-cookbook](https://github.com/yeongseon/azure-functions-python-cookbook) — レシピとサンプル
+このパッケージは **Azure Functions Python DX Toolkit** の一部です。
+
+**設計原則:** `azure-functions-validation` はリクエスト/レスポンスのバリデーションとシリアライズを担当します。 `azure-functions-openapi` は API ドキュメントとスペック生成を担当します。 `azure-functions-langgraph` は LangGraph ランタイムの公開を担当します。
+
+| パッケージ | 役割 |
+|---------|------|
+| [azure-functions-openapi-python](https://github.com/yeongseon/azure-functions-openapi-python) | OpenAPI スペック生成と Swagger UI |
+| **azure-functions-validation-python** | リクエスト/レスポンスのバリデーションとシリアライズ |
+| [azure-functions-db-python](https://github.com/yeongseon/azure-functions-db-python) | SQLAlchemy ベースの DB 統合ヘルパー（ポーリングベースの擬似トリガー、入力/出力/クライアント注入） |
+| [azure-functions-langgraph-python](https://github.com/yeongseon/azure-functions-langgraph-python) | Azure Functions 向け LangGraph デプロイアダプター |
+| [azure-functions-scaffold-python](https://github.com/yeongseon/azure-functions-scaffold-python) | プロジェクトスキャフォールディング CLI |
+| [azure-functions-logging-python](https://github.com/yeongseon/azure-functions-logging-python) | 構造化ロギングと可観測性 |
+| [azure-functions-doctor-python](https://github.com/yeongseon/azure-functions-doctor-python) | デプロイ前診断 CLI |
+| [azure-functions-durable-graph-python](https://github.com/yeongseon/azure-functions-durable-graph-python) | Durable Functions によるマニフェストファーストのグラフランタイム *(実験的)* |
+| [azure-functions-knowledge-python](https://github.com/yeongseon/azure-functions-knowledge-python) | 知識検索（RAG）デコレーター |
+| [azure-functions-cookbook-python](https://github.com/yeongseon/azure-functions-cookbook-python) | ドッグフード例 — ツールキット全体を活用する実行可能なレシピ |
 
 ## Disclaimer
 
diff --git a/README.ko.md b/README.ko.md
index e471f6f..d230ff7 100644
--- a/README.ko.md
+++ b/README.ko.md
@@ -128,13 +128,22 @@ def create_user(req: func.HttpRequest, body: CreateUserRequest) -> CreateUserRes
 
 ## Ecosystem
 
-- [azure-functions-langgraph](https://github.com/yeongseon/azure-functions-langgraph) — LangGraph 배포 어댑터
-- [azure-functions-openapi](https://github.com/yeongseon/azure-functions-openapi) — OpenAPI 및 Swagger UI
-- [azure-functions-logging](https://github.com/yeongseon/azure-functions-logging) — 구조화된 로깅
-- [azure-functions-doctor](https://github.com/yeongseon/azure-functions-doctor) — 진단 CLI
-- [azure-functions-scaffold](https://github.com/yeongseon/azure-functions-scaffold) — 프로젝트 스캐폴딩
-- [azure-functions-durable-graph](https://github.com/yeongseon/azure-functions-durable-graph) — Durable Functions 기반 그래프 런타임
-- [azure-functions-python-cookbook](https://github.com/yeongseon/azure-functions-python-cookbook) — 레시피 및 예제
+이 패키지는 **Azure Functions Python DX Toolkit**의 일부입니다.
+
+**설계 원칙:** `azure-functions-validation`은 요청/응답 검증과 직렬화를 담당합니다. `azure-functions-openapi`는 API 문서화와 스펙 생성을 담당합니다. `azure-functions-langgraph`는 LangGraph 런타임 노출을 담당합니다.
+
+| 패키지 | 역할 |
+|---------|------|
+| [azure-functions-openapi-python](https://github.com/yeongseon/azure-functions-openapi-python) | OpenAPI 스펙 생성 및 Swagger UI |
+| **azure-functions-validation-python** | 요청/응답 검증 및 직렬화 |
+| [azure-functions-db-python](https://github.com/yeongseon/azure-functions-db-python) | SQLAlchemy 기반 DB 통합 헬퍼 (폴링 기반 의사 트리거, 입력/출력/클라이언트 주입) |
+| [azure-functions-langgraph-python](https://github.com/yeongseon/azure-functions-langgraph-python) | Azure Functions용 LangGraph 배포 어댑터 |
+| [azure-functions-scaffold-python](https://github.com/yeongseon/azure-functions-scaffold-python) | 프로젝트 스캐폴딩 CLI |
+| [azure-functions-logging-python](https://github.com/yeongseon/azure-functions-logging-python) | 구조화된 로깅 및 관측성 |
+| [azure-functions-doctor-python](https://github.com/yeongseon/azure-functions-doctor-python) | 배포 전 진단 CLI |
+| [azure-functions-durable-graph-python](https://github.com/yeongseon/azure-functions-durable-graph-python) | Durable Functions 기반 매니페스트 우선 그래프 런타임 *(실험적)* |
+| [azure-functions-knowledge-python](https://github.com/yeongseon/azure-functions-knowledge-python) | 지식 검색(RAG) 데코레이터 |
+| [azure-functions-cookbook-python](https://github.com/yeongseon/azure-functions-cookbook-python) | 도그푸드 예제 — 전체 툴킷을 활용하는 실행 가능한 레시피 |
 
 ## Disclaimer
 
diff --git a/README.md b/README.md
index ddbfac9..aafef98 100644
--- a/README.md
+++ b/README.md
@@ -361,7 +361,7 @@ This package is part of the **Azure Functions Python DX Toolkit**.
 |---------|------|
 | [azure-functions-openapi-python](https://github.com/yeongseon/azure-functions-openapi-python) | OpenAPI spec generation and Swagger UI |
 | **azure-functions-validation-python** | Request/response validation and serialization |
-| [azure-functions-db-python](https://github.com/yeongseon/azure-functions-db-python) | Database bindings for SQL, PostgreSQL, MySQL, SQLite, and Cosmos DB |
+| [azure-functions-db-python](https://github.com/yeongseon/azure-functions-db-python) | SQLAlchemy-powered DB integration helpers (poll-based pseudo trigger, input/output/client injection) |
 | [azure-functions-langgraph-python](https://github.com/yeongseon/azure-functions-langgraph-python) | LangGraph deployment adapter for Azure Functions |
 | [azure-functions-scaffold-python](https://github.com/yeongseon/azure-functions-scaffold-python) | Project scaffolding CLI |
 | [azure-functions-logging-python](https://github.com/yeongseon/azure-functions-logging-python) | Structured logging and observability |
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 767bd63..5b652d1 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -128,13 +128,22 @@ def create_user(req: func.HttpRequest, body: CreateUserRequest) -> CreateUserRes
 
 ## Ecosystem
 
-- [azure-functions-langgraph](https://github.com/yeongseon/azure-functions-langgraph) — LangGraph 部署适配器
-- [azure-functions-openapi](https://github.com/yeongseon/azure-functions-openapi) — OpenAPI 与 Swagger UI
-- [azure-functions-logging](https://github.com/yeongseon/azure-functions-logging) — 结构化日志
-- [azure-functions-doctor](https://github.com/yeongseon/azure-functions-doctor) — 诊断 CLI
-- [azure-functions-scaffold](https://github.com/yeongseon/azure-functions-scaffold) — 项目脚手架
-- [azure-functions-durable-graph](https://github.com/yeongseon/azure-functions-durable-graph) — 基于 Durable Functions 的图运行时
-- [azure-functions-python-cookbook](https://github.com/yeongseon/azure-functions-python-cookbook) — 食谱与示例
+本包是 **Azure Functions Python DX Toolkit** 的一部分。
+
+**设计原则：** `azure-functions-validation` 负责请求/响应校验与序列化。 `azure-functions-openapi` 负责 API 文档与规范生成。 `azure-functions-langgraph` 负责 LangGraph 运行时暴露。
+
+| 包 | 职责 |
+|---------|------|
+| [azure-functions-openapi-python](https://github.com/yeongseon/azure-functions-openapi-python) | OpenAPI 规范生成与 Swagger UI |
+| **azure-functions-validation-python** | 请求/响应校验与序列化 |
+| [azure-functions-db-python](https://github.com/yeongseon/azure-functions-db-python) | 基于 SQLAlchemy 的数据库集成助手（基于轮询的伪触发器，输入/输出/客户端注入） |
+| [azure-functions-langgraph-python](https://github.com/yeongseon/azure-functions-langgraph-python) | 面向 Azure Functions 的 LangGraph 部署适配器 |
+| [azure-functions-scaffold-python](https://github.com/yeongseon/azure-functions-scaffold-python) | 项目脚手架 CLI |
+| [azure-functions-logging-python](https://github.com/yeongseon/azure-functions-logging-python) | 结构化日志与可观测性 |
+| [azure-functions-doctor-python](https://github.com/yeongseon/azure-functions-doctor-python) | 部署前诊断 CLI |
+| [azure-functions-durable-graph-python](https://github.com/yeongseon/azure-functions-durable-graph-python) | 基于 Durable Functions 的清单优先图运行时 *(实验性)* |
+| [azure-functions-knowledge-python](https://github.com/yeongseon/azure-functions-knowledge-python) | 知识检索（RAG）装饰器 |
+| [azure-functions-cookbook-python](https://github.com/yeongseon/azure-functions-cookbook-python) | 内部实践示例 — 可运行的完整工具链演示 |
 
 ## Disclaimer