A developer audited their TypeScript agent pipeline against the OWASP LLM Top 10 and found critical vulnerabilities, including unsanitized external tool output injected into the model context and unes…
A developer audited their TypeScript agent pipeline against the OWASP LLM Top 10 and found critical prompt injection vulnerabilities. The agent's MCP tool accepted external API responses without sanit…
A developer built Propoza, an AI-powered SaaS for generating business proposals, using Cloudflare Workers and D1 database to achieve near-zero infrastructure costs. The edge serverless approach elimin…
A developer building a Model Context Protocol (MCP) server for a course catalog learned to distinguish between Tools, Resources, and Prompts. The team refactored their V2 implementation, which incorre…
LangChain agents built on LangGraph use a tool-calling loop until a final answer is returned. The high-level createAgent function accepts a model, tools defined with tool(), and an optional system pro…
A developer argues that using prompts as runtime state machines leads to unpredictable LLM behavior and failed agentic AI projects. The solution is to break workflows into discrete, typed steps with d…
A developer built an open-source Confluence MCP server that allows Claude Code to automate Confluence workflows directly from the terminal. The server exposes tools for publishing pages, syncing conte…
Cursor rules often fail because they are static instructions that don't learn from PR history, compete with strong defaults, or are stored in outdated file locations. A developer at Codehabits recomme…
LangChain.js provides a standardized framework for building LLM applications in TypeScript and Node.js, enabling developers to compose prompts, models, tools, and retrievers into reusable pipelines an…
AgentBack, an AI-native API and MCP framework for building agent services, has been released as an alpha, ESM-only package requiring Node 22.13+ and TypeScript 6. Built on LoopBack 4's dependency-inje…
A developer created a TypeScript helper, generateStructured<T>(schema), that combines Ollama's native JSON modes with Zod validation to produce reliable structured output from local LLMs. The approach…
A developer let AI write backend code for a week and found that while AI-generated boilerplate was impressive, it introduced subtle bugs like type coercion issues, N+1 database queries, concurrency pr…
A developer has open-sourced five essential AI plumbing components for SaaS applications in 2026, providing working TypeScript code for Next.js 15. The components include streaming tokens via server-s…
A developer shipped a fully-tested, security-audited authentication system for HandyFEM, a marketplace app for women in the skilled trades, using a comprehensive code review process that caught 10 cri…
A developer built an API endpoint for their personal blog that allows Claude to publish posts via curl commands, but encountered two bcrypt hash parsing bugs in Next.js. The `@next/env` loader perform…
LangBear, a fully bootstrapped application, has developed a lightweight, provider-agnostic AI interface to avoid the maintenance burden and dependency issues of heavier frameworks like LangChain.js. T…
A developer has created a practical guide for building with the Model Context Protocol (MCP) using TypeScript, defining it as a set of rules for feeding context into AI models. The guide demonstrates …
A developer building Codenames AI, a web game where an LLM plays Codenames with users, found that enforcing JSON schema and Zod validation was insufficient for safe gameplay. The model consistently re…
Colin McDonnell, creator of the TypeScript library Zod, released Pullfrog, an open-source AI GitHub bot that runs entirely within GitHub Actions as a model-agnostic alternative to CodeRabbit. The tool…
The article explains a common bug in React Native forms where entering the number zero causes the input field to clear itself, due to JavaScript treating `0` as a "falsy" value. The fix involves repla…