· ai-agents
Agent Skills Guide: Write a SKILL.md That Works Everywhere
What agent skills are, how to write a SKILL.md that loads in Claude Code, Copilot, Cursor and Codex, and how to install shared skills safely.
Category
AI & Automation
AI agents, chatbots, retrieval and workflow automation that work in production.
· ai
Muse Spark Open Developer Guide: API, Pricing, Local Setup
How to call Meta's Muse Spark Open, what it costs on each provider, how to use it in OpenCode, and what hardware you need to run it yourself.
· ai
LLM API Pricing Compared: Cost per Task, Not per Token
OpenAI, Claude, Gemini and DeepSeek API prices from their own pages, and a simple way to work out what one completed AI task really costs.
· mcp
MCP Stateless Update: Migrate Your Server to 2026-07-28
MCP's 2026-07-28 spec drops sessions and the initialize handshake. What breaks in your MCP server, and how to migrate a TypeScript server step by step.
· n8n
n8n AI Agent vs Workflow: Which to Use in 2026
n8n Agents are in Preview. When an n8n AI agent beats a fixed workflow for small-business automation, what it costs, and how to set one up safely.
· postgresql
pgvector 0.8.7 Security Fix: Upgrade, Then Pick HNSW or IVFFlat
pgvector 0.8.7 fixes a high-severity IVFFlat bug. Check your version, upgrade on Docker or Supabase, and choose between HNSW and IVFFlat.
· ai
RAG with Citations on PostgreSQL and pgvector: How I Built It
How I built RAG with citations on PostgreSQL and pgvector for Pactroom: schema, project-scoped retrieval, citation prompts and the HNSW filtering trap.
· ai
WhatsApp AI Agent for Business: Cloud API, Webhooks and CRM
Build a WhatsApp AI agent on the Cloud API that updates your CRM: webhook setup, the 24-hour rule, templates, human handoff and October 2026 pricing.