16 Claude Code anti-patterns we reject on RuleSell
The sixteen patterns that get a skill, agent, plugin, or MCP server immediately rejected from RuleSell — and why each is broken.
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Engineering insights on AI dev tooling, Claude Code skills, MCP servers, and the patterns that separate quality from slop.
How to publish your first Claude Code skill
A concrete walkthrough — from empty repo to published listing — for authors writing their first Claude Code skill.
Read moreWhat RuleSell is and why we built it
We built a verified marketplace for AI dev assets because star ratings are broken and download counts measure marketing, not quality. Here's how RuleSell works and why.
Read moreAgentic coding patterns that actually work
Three focused agents beat one generalist working three times as long. But only if you get the patterns right. Here's what works and what produces 10x bugs.
Read moreBuilding a Claude Code skill from scratch — the complete guide
A step-by-step tutorial with real code for building a Claude Code skill that triggers correctly, loads efficiently, and actually helps. Not abstract guidance — working examples.
Read moreHow we measure quality: the 6 signals behind RuleSell's Quality Score
Star ratings measure popularity. Download counts measure marketing. We measure quality directly — with six automated signals and zero voting.
Read moreWhy prompt engineering matters more than model selection
A well-prompted Sonnet beats a lazily-prompted Opus. The benchmarks agree — prompt engineering lifted GPT-4 accuracy by 50%, and a 9B model beat one 13x its size. Here's the data.
Read moreThe real state of MCP servers in 2026
67,000+ MCP servers exist across public registries. 38.7% require no authentication. 30 CVEs filed in 60 days. MCP is powerful, and the ecosystem is a mess.
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