Welcome to my website!https://www.lena-nadir.dev/https://www.lena-nadir.dev/blog/en/ai-103-exam-experience/https://www.lena-nadir.dev/blog/en/ai-103-exam-experience/A first-attempt pass report for the Microsoft AI-103 (Azure AI Apps and Agents Developer Associate) exam — domain weighting, an LLM-assisted hands-on study method, and tips for exam day.Thu, 16 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/ai-103-series-00-roadmap/https://www.lena-nadir.dev/blog/en/ai-103-series-00-roadmap/The intro post for a hands-on series focused on the Generative AI/Agent domain of AI-103. Covers the overall theme and structure of the series.Sat, 18 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/ai-103-series-01-agent-basics/https://www.lena-nadir.dev/blog/en/ai-103-series-01-agent-basics/Build a no-code Agent with the Web Search Tool in Foundry Portal, then call that same Agent from the Python SDK (Responses API) — a full end-to-end walkthrough on real infrastructure.Tue, 21 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/ai-103-series-02-file-search-rag/https://www.lena-nadir.dev/blog/en/ai-103-series-02-file-search-rag/Upload documents with Microsoft Foundry's File Search feature and see an Agent answer using Retrieval-Augmented Generation (RAG) grounded in those files — confirmed hands-on via the Python SDK.Sat, 25 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/ai-103-series-03-structured-output/https://www.lena-nadir.dev/blog/en/ai-103-series-03-structured-output/We build two Foundry Agents with Web Search enabled — one Instructions-only, one Instructions plus a JSON Schema — so search and structuring happen in a single call, then compare them hands-on on parse success rate, type stability, and token cost.Sat, 01 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/ai-500-beta-exam-trends/https://www.lena-nadir.dev/blog/en/ai-500-beta-exam-trends/An in-depth look at Microsoft’s new AI-500 certification based on official sources, covering the exam scope, its relationship with AI-103, early reports on difficulty, LangGraph vs. Microsoft Agent Framework, and comparisons with AWS, Google Cloud, and NVIDIA certifications.Sun, 16 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/ai-agent-framework-comparison/https://www.lena-nadir.dev/blog/en/ai-agent-framework-comparison/A comparison of LangChain/LangGraph, Microsoft Agent Framework, AWS (Bedrock Agents/Strands Agents), and Google's Agent Development Kit (ADK) across provider, strengths, state management approach, and LLM compatibility.Mon, 10 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/data-platform-modernization/https://www.lena-nadir.dev/blog/en/data-platform-modernization/A practical account of why we revisited Azure Databricks after running a production-oriented PoC on Microsoft Fabric—and what the experience taught us about requirements, architectural portability, and solution selection for an AI-ready data platform.Sat, 05 Sep 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/langgraph-test-spec-generator/https://www.lena-nadir.dev/blog/en/langgraph-test-spec-generator/Implement a Generator & Critic workflow with LangGraph that supplements and reviews unit test specifications from design documents, source code, and developer-authored key test items.Sun, 30 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/en/multi-agent-stock-analysis/https://www.lena-nadir.dev/blog/en/multi-agent-stock-analysis/Implementing a multi-agent Parallel Fan-Out/Gather Pattern on Microsoft Foundry. We organize the multi-agent design patterns from the Google Developers Blog, then use stock analysis as a use case to test running specialist agents in parallel and synthesizing their results.Wed, 26 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-103-exam-experience/https://www.lena-nadir.dev/blog/ja/ai-103-exam-experience/Microsoft認定資格 AI-103（Azure AI Apps and Agents Developer Associate）にβ版で一発合格した体験記。出題範囲・配点比率、LLMを使ったハンズオン学習法、試験本番のTipsをまとめますThu, 16 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-103-series-00-roadmap/https://www.lena-nadir.dev/blog/ja/ai-103-series-00-roadmap/AI-103のGenerative AI/Agent領域に絞った実践Hands-onシリーズの導入記事。シリーズ全体のテーマと構成をまとめます。Sat, 18 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-103-series-01-agent-basics/https://www.lena-nadir.dev/blog/ja/ai-103-series-01-agent-basics/Foundry PortalでWeb Search Toolを使うAgentをノーコードで作成し、Python SDK(Responses API)から同じAgentを呼び出すまでを、実機で一気通貫に確認します。Tue, 21 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-103-series-02-file-search-rag/https://www.lena-nadir.dev/blog/ja/ai-103-series-02-file-search-rag/Microsoft FoundryのFile Search機能でドキュメントをアップロードし、Agentがそのファイルをもとに検索拡張生成(RAG)で回答するまでを、Python SDK経由で実機で確認します。Sat, 25 Jul 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-103-series-03-structured-output/https://www.lena-nadir.dev/blog/ja/ai-103-series-03-structured-output/Web Search Toolを持つ2つのFoundry Agent(Instructionsのみ、Instructions+JSON Schema)を作り、検索から構造化までを1回の呼び出しで完結させる方式を、パース成功率・型の安定性・トークンコストの面で実測比較します。Sat, 01 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-500-beta-exam-trends/https://www.lena-nadir.dev/blog/ja/ai-500-beta-exam-trends/Microsoftの新資格AI-500を公式情報から解説。試験範囲、AI-103との関係、難易度に関する初期報告、LangGraphとMicrosoft Agent Framework、AWS・Google Cloud・NVIDIA資格との違いを整理します。Sun, 16 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/ai-agent-framework-comparison/https://www.lena-nadir.dev/blog/ja/ai-agent-framework-comparison/LangChain/LangGraph、Microsoft Agent Framework、AWS(Bedrock Agents/Strands Agents)、Google Agent Development Kit(ADK)の4つを、提供主体・得意領域・状態管理方式・相性の良いLLMの観点で整理して比較します。Sun, 09 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/data-platform-modernization/https://www.lena-nadir.dev/blog/ja/data-platform-modernization/Microsoft Fabricで実務向けPoCを進めた後、Azure Databricksを再評価することになった事例から、データ基盤ソリューション選定で評価すべき要件、アーキテクチャの移植性、PoCの評価軸を整理します。Sat, 05 Sep 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/langgraph-test-spec-generator/https://www.lena-nadir.dev/blog/ja/langgraph-test-spec-generator/LangGraphのGenerator & Critic Patternを使い、人間が作成した主要テスト項目を起点に、設計書とソースコードから単体テスト仕様書を補完・レビューする処理を実装するSun, 30 Aug 2026 00:00:00 GMThttps://www.lena-nadir.dev/blog/ja/multi-agent-stock-analysis/https://www.lena-nadir.dev/blog/ja/multi-agent-stock-analysis/Microsoft Foundryを使ってParallel Fan-Out/Gather Patternによるマルチエージェント構成を実装します。Google Developers Blogで紹介されているMulti-Agent Patternを整理し、株式分析をユースケースとして専門Agentの並列実行と結果統合を検証します。Wed, 26 Aug 2026 00:00:00 GMT