How to Use Claude Fable 5 Effort Levels: Low, Medium, High, and Max
Learn how to use Claude Fable 5 effort levels—low, medium, high, and max—to balance reasoning quality, latency, and token cost.…
TeacHER Explains: How to ask AI to improve an answer
A practical lesson on refining AI outputs with follow-up prompts instead of accepting the first answer.
TeacHER Explains: How to write a good AI prompt
A beginner-friendly guide to writing prompts that give AI a clear job, useful context, and a better chance of helping.
TeacHER Explains: What is a prompt?
A prompt is the instruction you give to an AI model. TeacHER explains how prompts work and how to write…
Google AI Studio in 2026: A Practical Guide to Prototyping with the Gemini Developer API, Structured Outputs, and Vertex AI Differences
Google AI Studio in 2026 is the fastest way to prototype with Gemini via the Gemini Developer API—especially when you…
AI Skills Explained: What “Skills” Are, How to Create Them, and How They Work (With Hands-On Examples)
AI skills are reusable instruction sets (often combined with templates, examples, and tools) that make an AI assistant’s behavior consistent…
Retrieval-Augmented Generation (RAG) Explained: How “Search + Chat” Helps AI Answer Using Your Documents (Without Making Things Up)
Retrieval-Augmented Generation (RAG) is the “search + chat” pattern that helps AI answer questions using your documents instead of guessing.…
How to Evaluate AI Agents in Production: Metrics for Reliability, Tool-Use Failures, and Non-Determinism
A practical framework for evaluating AI agents in production using layered metrics—session success, trajectory quality, and action/tool correctness—plus strategies to…
Build AI Skills Into Your Daily Workflow: A Beginner’s System for Prompting, Evaluating, and Automating Real Work
A beginner-friendly system to build real AI skills directly inside your everyday work—learn prompting, evaluate outputs safely, and automate small…
Insanely Effective Prompts to Secure AI Applications Against MCP/RAG Injection and Beyond: Building Enterprise-Grade Defenses
Discover copy-paste-ready prompts and frameworks to secure AI apps against MCP/RAG injection, prompt attacks, and more—essential for 2026 enterprise and…