CLSkills_Hub

The CLSkills blog

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

AI for Strategy

Learn how to use AI for strategic planning, generate insights and align your team with a shared vision

Apr 20, 2026 · 2 min read · claude

Reduce AI Hallucinations

Learn how to minimize AI hallucinations in Claude using /skeptic and /trim prompt codes for more accurate responses.

Apr 18, 2026 · 2 min read · claude

AI Coding Assistant

Discover best prompts for AI coding assistant to automate tasks and improve coding efficiency

Apr 17, 2026 · 3 min read · claude

Best Claude Prompts for Startup Founders (Tested, Not Guessed)

10 Claude prompt codes founders actually use for decisions, cold outreach, fundraising, and pricing. Each tested against baseline. Each with a before and after.

Apr 16, 2026 · 7 min read · claude

/blindspots — The Claude Prompt That Finds What You Didn't Ask

/blindspots surfaces the 2-3 assumptions you didn't notice you were making. One of only 5 Claude prompt codes that actually shifts reasoning (not just output format).

Apr 16, 2026 · 6 min read · claude

Career-Ops: The Open-Source AI Job Search Agent Built on Claude Code (34K Stars)

Career-Ops turns Claude Code into a full job search command center — auto-evaluates offers, generates tailored CVs, scans job portals, and tracks your pipeline. 34K GitHub stars. Here's how to set it up.

Apr 16, 2026 · 6 min read · claude

Why ChatGPT Prompts Don't Work in Claude (And What To Use Instead)

The 'ultimate ChatGPT prompts' you paid for don't produce the same output in Claude. Here's why, which types transfer, and which Claude-specific codes replace them.

Apr 16, 2026 · 6 min read · claude

Claude Prompt Cheat Sheet (PDF and Web): Free vs Paid Options Compared

Looking for a Claude prompt cheat sheet? Here are the genuinely useful free options, which paid ones are worth it, and how to tell which codes have been tested vs just copied from a Reddit thread.

Apr 16, 2026 · 5 min read · claude

Claude Prompt Code Combos — The 10 Stacking Patterns That Actually Compound

Single prompt codes are fine. Stacks of 2-4 are where the output quality jumps. Here are 10 tested combo patterns for common founder and developer tasks.

Apr 16, 2026 · 7 min read · claude

Claude Haiku 4.5 Prompt Codes That Actually Work (Tested vs Sonnet 4.6)

Re-tested 120 prompt codes when Haiku 4.5 shipped. 20% of rankings shifted. Here's which codes still work, which got better, and which broke.

Apr 16, 2026 · 5 min read · claude

Claude PR Review

Optimize pull request reviews with effective Claude prompts

Apr 16, 2026 · 2 min read · claude

The CRISPE Framework for Claude Prompts (Better Than 'Act as an Expert')

CRISPE — Capacity, Role, Insight, Statement, Personality, Experiment — is the prompt structure that consistently outperforms generic 'act as an expert' prompts. Here's how to use it.

Apr 16, 2026 · 6 min read · claude

How to Test If a Claude Prompt Actually Works (The 30-Second Method)

Most 'secret Claude prompts' online are untested opinions. Here's the simple controlled-test method that tells you in 30 seconds whether a prefix is doing anything.

Apr 16, 2026 · 6 min read · claude

AI Client Proposals

Learn how to use AI for client proposals and create personalized content

Apr 16, 2026 · 3 min read · claude

47% of Popular Claude Prompts Are Placebo — Here's The Data

Ran 120 viral Claude prompt codes through a controlled testing harness. Nearly half produced output indistinguishable from baseline. Which ones don't work, and why.

Apr 16, 2026 · 6 min read · claude

How to Stop Claude From Hedging (The 3 Prompts That Actually Work)

Claude's hedging problem isn't going away on its own. Here are 3 tested prompt codes that force decisive answers — with real before/after examples.

Apr 16, 2026 · 6 min read · claude

Claude Skills 101

Discover what Claude skills are and learn how to install them for better interactions

Apr 16, 2026 · 2 min read · claude

claude prompt for email subject lines

## Crafting Compelling Email Subject Lines with Claude You're trying to write email subject lines that grab attention and drive opens, but your current app

Apr 15, 2026 · 2 min read · claude

Estimate with Claude

Optimize estimation with Claude using L99 and /deepthink prompts

Apr 15, 2026 · 3 min read · claude

Claude Prompt

Optimize GitHub issue reports with Claude prompt codes /trim and /simplify

Apr 15, 2026 · 3 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