A growing collection of free tools and skills for people building with Claude Code — validators, auditors, and generators. No signup, no cost. Made by the team behind the ClaudeThings kits.
Lint a Claude skill's format in seconds
Paste a SKILL.md and instantly check the YAML frontmatter, name and description rules, body length, and when-to-use structure — with the exact fixes. Runs 100% in your browser.
Open tool →Scan your site for the holes that get sites breached
A free Claude skill that audits your own website or codebase for missing HTTPS, exposed files, hardcoded secrets, and vulnerable dependencies — then hands you a prioritized, plain-English fix-it report.
Open tool →Editorial roundups of the Claude ecosystem — the tools, connectors, and setups that earn their place, and the ones to skip.
The 2026 stack for coding with Claude
Claude Code, IDE integrations, AI editors, and the extensions that matter — how the pieces fit and what to install first.
Read the guide →Give Claude hands: the connectors worth installing
What MCP is, the servers that earn a permanent spot (GitHub, Postgres, browser automation, and more), and how to add them safely.
Read the guide →Beyond chat: the features people miss
Projects, Artifacts, connectors, skills, and the workflow setups that turn Claude from a chat window into a working system.
Read the guide →The tools above are free forever. The ClaudeThings kits give you a whole library — 89 agents, 103 skills, and 181 slash commands you drop into any project with one command.
Battle-tested Claude skills & workflows for builders.
Turn Claude into your growth team.