Fix n8n's MCP Webhook Heap Leak in Queue Mode

Why memory climbs to an OOM crash on n8n workers running an MCP Trigger in queue mode, and the exact version that fixes the SessionManager leak.

How to fix Make's Retry error handler (formerly Break) not triggering

Make's Retry error handler (formerly Break) silently skips HTTP module failures until you flip one toggle on the HTTP module itself.

How to Deploy an AI Agent to Production on AWS Lambda (Serverless)

Lambda isn't a cheaper container: no warm process for state, a 900-second ceiling, and streaming that's native only on Node.js. Here's how to ship an agent around all three.

How to Deploy an AI Agent to Production with Express and Docker

A copy-paste recipe for wrapping a Node.js agent in a streaming Express route, a non-root multi-stage Dockerfile, and a BullMQ queue that stops one long-running agent turn from hanging your whole event loop.

How to Deploy an AI Agent to Production with FastAPI and Docker

A copy-paste recipe for wrapping a LangGraph, Pydantic AI, or LangChain agent in a FastAPI endpoint, a non-root multi-stage Dockerfile, and a timeout that stops one stalled model call from hanging your whole worker pool.

How to Handle Errors in Custom LangChain Tools (with Middleware)

Why handle_tool_error stops working the moment your LangChain agent has middleware attached, and how to catch tool errors with wrap_tool_call or ToolRetryMiddleware instead.

How to Install Claude Code on macOS, Linux, and Windows

One native-installer command per shell, the Windows PowerShell-vs-CMD gotcha, and how to verify the install actually worked.

How to Fix LangChain AgentExecutor Not Calling Tools

AgentExecutor's verbose trace shows it choosing a tool, then the chain just finishes - no error, no tool result. Here's why, and the five-check fix.

How Claude Code Plan Mode Works (and When to Use It)

Plan mode restricts Claude Code to read-only research until you approve its plan - here's the exact permission model, the keyboard shortcut, and when the extra review step is worth the friction.

Fix LangChain create_react_agent 'unexpected keyword argument prompt'

The TypeError comes from a kwarg rename between langgraph versions - or the wrong create_react_agent import entirely. Here's how to tell which and fix it.