AI Posts (25)
Hands-on guides to integrating AI into web apps — embeddings, RAG pipelines, and working with LLM APIs.
Monday 13/04/2026
· 13 min readShould You Build or Buy AI Features for Your SaaS? A Decision Framework
A practical decision framework with real cost math to help you decide whether to build AI features with APIs or buy a third-party AI product for your SaaS.
Friday 10/04/2026
· 15 min readBuild a Multi-Agent Customer Support System with Handoffs in TypeScript
Build a multi-agent customer support system in TypeScript where a triage agent routes conversations to specialized billing, technical, and returns agents — with human escalation.
Monday 06/04/2026
· 9 min readHow to Measure If Your AI Feature Is Actually Working (A Guide for Product Teams)
Stop relying on vibes. Learn what metrics to track, how to set up A/B tests, and when to kill an AI feature that isn't delivering value.
Friday 03/04/2026
· 12 min readBuild an Agentic RAG Pipeline That Retries and Reformulates Queries
Upgrade your basic RAG pipeline to an agentic loop that evaluates retrieval quality, reformulates queries, and retries with alternative strategies — all in TypeScript.
Wednesday 01/04/2026
· 9 min readClaude Code Source Leak: What the Exposed Code Reveals About AI Agent Architecture
Anthropic accidentally shipped source maps in their Claude Code npm package, exposing the full architecture. Here is what the leaked code teaches us about building production AI agents.
Wednesday 01/04/2026
· 11 min readClaude Agent SDK vs OpenAI Agents SDK: Building AI Tools in TypeScript
Compare Claude Agent SDK and OpenAI Agents SDK by building the same coding assistant in both. Real TypeScript code, honest tradeoffs, and guidance on which to pick.
Monday 30/03/2026
· 13 min readWhy Most AI Agent Architectures Are Overengineered (And What to Build Instead)
Most AI agent use cases don't need multi-agent frameworks. Learn how to replace overengineered agent architectures with a simple tool-calling loop in TypeScript.
Friday 27/03/2026
· 11 min readHow to Build an AI-Powered Autocomplete for Any Text Input
Build a reusable React component that streams AI autocomplete suggestions as ghost text in any textarea — with debouncing, cancellation, and keyboard shortcuts.
Wednesday 25/03/2026
· 11 min readRun AI Models Directly in the Browser with WebLLM and WebGPU
Build a privacy-first note-taking app that summarizes and tags notes entirely in the browser using WebLLM and WebGPU — no API keys, no server, no data leaving the device.
Monday 23/03/2026
· 11 min readVercel AI SDK vs Mastra vs LangChain.js: Which TypeScript AI Framework Should You Use
Compare Vercel AI SDK, Mastra, and LangChain.js by building the same tool-calling agent in all three — with honest tradeoffs on DX, streaming, and production readiness.
Saturday 21/03/2026
· 11 min readBuild a Human-in-the-Loop AI Agent with Vercel AI SDK
Build a Next.js AI agent that asks for user approval before taking actions — using Vercel AI SDK's tool confirmation flow with streaming UI and approval dialogs.
Wednesday 18/03/2026
· 10 min readStructured Output with Zod: Force Any LLM to Return Typed JSON
Stop parsing messy LLM text with regex. Learn how to use Zod schemas to get reliable, typed JSON from Claude, OpenAI, and Vercel AI SDK — with validation, error recovery, and nested schemas.
Wednesday 18/03/2026
· 12 min readHow to Build an MCP Server in TypeScript from Scratch
Learn how to build a Model Context Protocol (MCP) server in TypeScript that connects a PostgreSQL database to any LLM client — with tools, resources, and Streamable HTTP transport.
Wednesday 04/03/2026
· 14 min readHow to Test AI Features: Unit Testing LLM-Powered Code
Learn practical patterns for testing LLM-powered TypeScript code — mocking AI APIs, snapshot testing non-deterministic outputs, eval frameworks, and assertion strategies with Vitest.
Monday 02/03/2026
· 11 min readBuild a Slack Bot That Answers Questions About Your Codebase
Build an AI Slack bot that indexes your codebase and answers questions like 'where is the auth logic?' — with full TypeScript code using embeddings and Claude.
Friday 27/02/2026
· 12 min readHow to Cache AI Responses Without Breaking Your App
Learn how to cache AI API responses to cut costs and latency — exact match, semantic similarity, and prompt fingerprinting strategies with TypeScript and Redis.
Wednesday 25/02/2026
· 9 min readThe Real Cost of Running an AI Feature in Production (With Math)
Break down the real cost of AI API calls in production — token math for chatbots, RAG, and summarization, plus a TypeScript cost calculator and optimization tips.
Tuesday 24/02/2026
· 11 min readHow to Build an AI-Powered Form That Extracts Data from PDFs
Build a Next.js form that uploads a PDF, sends it to Claude for structured data extraction, and renders editable fields — full working code from upload to form.
Friday 20/02/2026
· 12 min readBuild a Multi-Step AI Agent with Tool Use in TypeScript
Build a TypeScript AI agent that calls tools, chains decisions, and solves multi-step tasks using Claude's tool_use API — full working agent loop included.
Wednesday 18/02/2026
· 12 min readHow to Handle AI API Rate Limits and Errors in Production (TypeScript)
Production-ready TypeScript patterns for handling AI API rate limits — exponential backoff, request queues, token budgets, and graceful degradation you can copy-paste.
Tuesday 17/02/2026
· 8 min readBuilding an AI Code Review Bot with Claude and GitHub Actions
Build a GitHub Action that automatically reviews pull requests using Claude — complete working workflow YAML and TypeScript script you can add to any repo.
Friday 13/02/2026
· 8 min readHow to Add AI Search to Any Website with Embeddings and Supabase
Add AI-powered semantic search to your website using OpenAI embeddings and Supabase pgvector — full working TypeScript example with a React frontend.
Wednesday 11/02/2026
· 11 min readClaude vs OpenAI API: A Practical Comparison for JavaScript Developers
A side-by-side code comparison of the Claude API vs OpenAI API for JavaScript developers — streaming, tool use, vision, and pricing math with real TypeScript examples.
Monday 09/02/2026
· 8 min readHow to Stream Claude API Responses in a Next.js App (With Full Code)
Learn how to stream Claude API responses token-by-token in a Next.js app using the Anthropic TypeScript SDK and Server-Sent Events. Full working code included.
Monday 09/02/2026
· 9 min readBuild a RAG Chatbot in 100 Lines of TypeScript
Build a RAG chatbot in TypeScript that answers questions about your own documents using the Anthropic SDK and a vector database — no LangChain, no bloated frameworks.