CLSkills_Hub

The CLSkills blog

147 posts on Claude Code, agents, and prompt engineering. Every claim tested.

Verify Claude

Learn how to fact check Claude responses with stacked prompts

Aug 14, 2026 · 3 min read · claude

Claude vs ChatGPT

Discover if Claude outperforms ChatGPT for writing tasks and learn how to improve your AI-generated content

Jul 13, 2026 · 3 min read · claude

Claude Prompt Caching: The Real Setup Guide (Cut API Costs Up to 90%)

How Claude's prompt caching actually works, when it saves you money, when it costs you more, and the exact break-point pattern that gets a 90% discount. Verified against Anthropic's official spec.

Jul 10, 2026 · 7 min read · claude

Claude Fable + Token Monitoring: How to Cut Your Claude Code Bill Without Cutting Quality

Fable is the fast light Claude 5 model built for cost efficiency. Here is when to use Fable vs Sonnet vs Opus, how to monitor tokens live inside VS Code, and the honest math on what each saves.

Jul 9, 2026 · 8 min read · claude

Is /godmode a Real Claude Prompt? I Tested It Against Baseline (Honest Verdict)

/godmode is the most-searched Claude prompt code that nobody has tested. I ran 14 prompts with /godmode vs no prefix. Verdict: 2.1x longer output, correctness slightly worse. Placebo.

Jul 9, 2026 · 8 min read · claude

Best AI Tools for Real Estate Agents in 2026 (Honest Comparison, Ranked)

Tested 12 AI tools real estate agents can use in 2026. Ranked by real usefulness for listing copy, buyer follow-up, Fair Housing compliance, and CRM work. Full comparison with prices, honest verdicts, and what each tool actually does.

Jul 8, 2026 · 9 min read · real estate

How We Actually Test Claude Prompt Codes: The Full Methodology Behind the 47% Placebo Finding

The methodology behind our tested Claude prompt code library. We ran 160+ codes through a controlled harness across five task categories, scored blind on reasoning shift versus vocabulary shift, and reproducibility notes so you can replicate or push back. Includes the seven codes that survived, three concrete before-and-after prompt examples, and the honest limits of the approach.

Jul 5, 2026 · 15 min read · claude

MCP Servers Explained: What Model Context Protocol Actually Does

Plain-English guide to MCP (Model Context Protocol) servers for Claude. What they are, how they work, the 8 worth installing, and the common mistakes to avoid.

Jul 3, 2026 · 7 min read · mcp

Write AI Prompts Like Humans

Learn to craft AI prompts that sound natural, not robotic. Discover the secret to stacking prompt codes for engaging, human-like text.

Jul 1, 2026 · 3 min read · claude

Claude Brainstorming

Learn how to use Claude for effective brainstorming with a simple pattern

Jun 30, 2026 · 2 min read · claude

Claude Prompt Basics

Learn Claude prompt engineering for beginners with effective codes and techniques

Jun 27, 2026 · 2 min read · claude

Unlock Claude

Discover how to use Claude for content writing with stacked prompt codes for engaging articles and blog posts

Jun 8, 2026 · 3 min read · claude

Claude's Hedge

Discover why Claude keeps hedging and learn how to get direct answers

May 14, 2026 · 2 min read · claude

Claude + Blender: The Exact Workflow for AI-Assisted 3D Modeling (Python API, Add-ons, Rigging, Rendering)

Step-by-step guide to using Claude with Blender. Includes the Blender MCP add-on (lets Claude talk to Blender directly, no copy-paste), plus manual scripting workflows for procedural geometry, batch automation, custom add-ons, rigging, and render farms. Real scripts you can paste and run.

May 12, 2026 · 17 min read · claude

Use Claude Effectively

Learn how to use Claude with L99 & /skeptic codes for accurate responses

May 11, 2026 · 3 min read · claude

Cheat Sheet vs Skills Library: When To Buy Which (and When Neither)

Honest comparison of the CLSkills Cheat Sheet ($15) and the Skills Library ($25 lifetime). What is in each, who actually needs which, and when both, or neither, is the right call.

May 8, 2026 · 8 min read · claude

Claude For Business

Learn how to use Claude for informed business decisions and reduce uncertainty

May 8, 2026 · 2 min read · claude

Will Claude Prompt Codes Work on GPT-5.5? A Framework, Predictions, and What We're Testing This Week

GPT-5.5 is here and everyone wants to know if their Claude prompt codes still work. Part 1: the cross-model transfer framework with per-code predictions for L99, OODA, ARTIFACTS, /skeptic, /blindspots, /decompose. Part 2 ships next week with the test data.

May 6, 2026 · 8 min read · claude

Claude L99 vs OODA vs ARTIFACTS: 6 Months Later, What Actually Stuck

Six months after the original test, we re-ran L99, OODA, and ARTIFACTS through 6 real production tasks. Here is which mode survived daily use, which one stopped working, and 3 newer codes worth adding to your toolkit.

May 5, 2026 · 10 min read · claude

AI Code Review 2026

Discover the best AI tool for code review in 2026 and improve code quality with efficient and effective AI-powered solutions.

Apr 24, 2026 · 2 min read · claude

Want the tested prompts, not the blog posts?

The Cheat Sheet has 120 tested Claude prompt codes with before-and-after data. The Skills Library has 2,300+ skills. Both lifetime updates.

Get the cheat sheet, $15Or the Skills Library, $25