Deep technical articles on AI agents, cloud architecture, and coding tools.https://zmead.com/https://zmead.com/blog/the-real-showdown-after-the-source-leak-claude-code-vs-openclaw-510k-lines-vs-530k-lines/https://zmead.com/blog/the-real-showdown-after-the-source-leak-claude-code-vs-openclaw-510k-lines-vs-530k-lines/In our [previous article](https://zmead.com/blog/openclaw-vs-claude-code-design-philosophy), we dissected OpenClaw's 450K lines of open-source code alongside the 183 Markdown config files in Claude Code's public repository. We knew at the time that Claude Code's core runtime was closed-source — all we could analyze was the plugin ecosystem's definition layer. On March 31, 2026, security researcher Chaofan Shou discovered a 60MB `cli.js.map` file buried inside Claude Code v2.1.88's npm package — 1,884 TypeScript source files, 512,664 lines of code, fully exposed. This time, we finally get to crack open Claude Code's real engine and do a truly apples-to-apples source code comparison.Wed, 01 Apr 2026 00:00:00 GMThttps://zmead.com/blog/%E5%9F%BA%E4%BA%8E-amazon-cloudfront-%E5%92%8C-lambdaedge-%E5%AE%9E%E7%8E%B0%E5%A4%B1%E8%B4%A5%E8%AF%B7%E6%B1%82%E7%9A%84%E5%AE%8C%E6%95%B4%E8%AE%B0%E5%BD%95%E4%B8%8E%E5%BC%82%E6%AD%A5%E9%87%8D%E6%94%BE/https://zmead.com/blog/%E5%9F%BA%E4%BA%8E-amazon-cloudfront-%E5%92%8C-lambdaedge-%E5%AE%9E%E7%8E%B0%E5%A4%B1%E8%B4%A5%E8%AF%B7%E6%B1%82%E7%9A%84%E5%AE%8C%E6%95%B4%E8%AE%B0%E5%BD%95%E4%B8%8E%E5%BC%82%E6%AD%A5%E9%87%8D%E6%94%BE/A dual Lambda@Edge architecture for recording full request headers and body of failed requests — WAF blocks and origin errors — without modifying origin code, with async replay from S3.Wed, 01 Apr 2026 00:00:00 GMThttps://zmead.com/blog/wechat-openclaw-native-integration/https://zmead.com/blog/wechat-openclaw-native-integration/WeChat's native integration with OpenClaw signals a major shift in platform strategy. Here's why the world's largest messaging app opening up to AI agents matters.Sun, 22 Mar 2026 00:00:00 GMThttps://zmead.com/blog/cloudfront-lambda-edge-failed-requests/https://zmead.com/blog/cloudfront-lambda-edge-failed-requests/How we built a dual Lambda@Edge solution to capture full request headers and body for failed CloudFront requests — and the 5 pitfalls we hit along the way.Wed, 18 Mar 2026 00:00:00 GMThttps://zmead.com/blog/ai-coding-agent-internals/https://zmead.com/blog/ai-coding-agent-internals/From LLM reasoning and tool calling to context window management and security models — a comprehensive look at the internals of AI coding agents, based on Amazon Q CLI and Claude Code source code.Sun, 15 Mar 2026 00:00:00 GMThttps://zmead.com/blog/kiro-build-agentic-ai-platform/https://zmead.com/blog/kiro-build-agentic-ai-platform/How we built a delivery-focused AI agent platform using Kiro IDE, Strands Agents, Amazon Bedrock AgentCore, and AWS CDK — in one week, with zero hand-written code.Thu, 12 Mar 2026 00:00:00 GMThttps://zmead.com/blog/openclaw-vs-claude-code-comparison/https://zmead.com/blog/openclaw-vs-claude-code-comparison/A comprehensive analysis of OpenClaw and Claude Code — two AI agent products with radically different philosophies, architectures, and paths to adoption.Sun, 08 Mar 2026 00:00:00 GMThttps://zmead.com/blog/openclaw-vs-claude-code-design-philosophy/https://zmead.com/blog/openclaw-vs-claude-code-design-philosophy/A source-code-level comparison of how OpenClaw (453K lines TypeScript) and Claude Code (28K lines Markdown) approach agent definition, plugin systems, multi-model support, and security.Thu, 05 Mar 2026 00:00:00 GMThttps://zmead.com/blog/amazon-nova-ten-realtime-av/https://zmead.com/blog/amazon-nova-ten-realtime-av/How to build a low-latency, multimodal real-time audio-video AI assistant using Amazon Nova, Amazon Transcribe, Amazon Polly, and the open-source TEN framework on AWS.Sun, 15 Jun 2025 00:00:00 GMThttps://zmead.com/blog/claude-4-ai-coding-future/https://zmead.com/blog/claude-4-ai-coding-future/After a year of daily AI-assisted development across Cursor, Claude Code, Cline, and Amazon Q — what actually works, what doesn't, and how AI coding tools are reshaping the developer landscape.Thu, 22 May 2025 00:00:00 GMThttps://zmead.com/blog/amazon-quicksuite-data-analysis/https://zmead.com/blog/amazon-quicksuite-data-analysis/A step-by-step guide to connecting databases, building dashboards, creating Topics for natural language Q&A, and setting up collaborative Spaces in Amazon QuickSuite.Tue, 20 May 2025 00:00:00 GMThttps://zmead.com/blog/ai-agent-advertising-creative/https://zmead.com/blog/ai-agent-advertising-creative/How to build an AI agent system using Strands Agents SDK and Amazon Bedrock to automate advertising creative generation — from copywriting to image and video production.Thu, 10 Apr 2025 00:00:00 GMThttps://zmead.com/blog/building-rag-system-from-scratch/https://zmead.com/blog/building-rag-system-from-scratch/Step-by-step tutorial on building a Retrieval Augmented Generation system using LangChain, Elasticsearch vector search, and AWS Bedrock — from document embedding to context-enhanced generation.Tue, 15 Oct 2024 00:00:00 GMThttps://zmead.com/blog/ai-video-course-generator/https://zmead.com/blog/ai-video-course-generator/How to build an automated video course creation tool using AI — covering PPT text extraction, LLM script generation, text-to-speech synthesis, and FFmpeg video composition.Tue, 08 Oct 2024 00:00:00 GMThttps://zmead.com/blog/full-site-search-engine-elasticsearch/https://zmead.com/blog/full-site-search-engine-elasticsearch/A comprehensive guide to building enterprise search with Elasticsearch — covering multi-source indexing, binlog-based CDC sync, permission-aware retrieval, hot keyword ranking with time decay, and typeahead suggestions.Sun, 10 Mar 2024 00:00:00 GMThttps://zmead.com/blog/fscrawler-elasticsearch-knowledge-base/https://zmead.com/blog/fscrawler-elasticsearch-knowledge-base/How to use FSCrawler to index PDF, Word, Excel, and scanned documents into Elasticsearch — covering OCR setup, custom mappings, REST API integration, and production deployment.Tue, 20 Feb 2024 00:00:00 GMThttps://zmead.com/blog/mysql-unique-index-millions-rows/https://zmead.com/blog/mysql-unique-index-millions-rows/How we added a unique index to a live 15M-row table with duplicate data — the mistakes we made, the outage we caused, and the modern tools (pt-osc, gh-ost, online DDL) we should have used.Mon, 15 Jan 2024 00:00:00 GMThttps://zmead.com/blog/dns-deep-dive-kubernetes/https://zmead.com/blog/dns-deep-dive-kubernetes/From dig traces and DNS hierarchy to CoreDNS configuration in Kubernetes — a comprehensive guide to understanding and debugging DNS in containerized environments.Wed, 10 Jan 2024 00:00:00 GMThttps://zmead.com/blog/golang-distributed-job-scheduler/https://zmead.com/blog/golang-distributed-job-scheduler/A practical guide to building a distributed task scheduling system in Go using Machinery, Redis, and cron — covering task management, distributed locking, retry strategies, and monitoring.Sun, 15 Jan 2023 00:00:00 GMThttps://zmead.com/blog/grafana-api-monitoring-elasticsearch/https://zmead.com/blog/grafana-api-monitoring-elasticsearch/A practical guide to building production API monitoring — from Elasticsearch data source setup and Lucene queries to Grafana dashboard panels, alerting rules, and operational best practices.Sun, 08 Jan 2023 00:00:00 GMT