Builder WrenchBuilder Wrench — Free Browser Extensions, Games and Web Tools
Free browser extensions, games and web tools
We build apps that make everyday life easier and games to explore.
Browser Extensions
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AI Readiness Inspector
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Games
MysterySolve
AI Standards Tools
Guides
AI Readiness Guide
Everything you need to make your site AI-friendly. Comprehensive checklist with examples.
What is llms.txt?
The new standard for telling AI crawlers about your site. Like robots.txt, but for LLMs.
What is MCP (Model Context Protocol)?
Model Context Protocol explained. How to connect AI apps to your tools and data.
What is A2A (Agent-to-Agent Protocol)?
Google's Agent-to-Agent protocol. How AI agents discover and talk to each other.
Structured Data for AI Assistants
How JSON-LD helps AI assistants understand and accurately describe your site. Schema types, examples, and common mistakes.
How AI Crawlers Use Your Website
GPTBot, ClaudeBot, PerplexityBot, and GoogleOther explained. What they fetch, how often they visit, and what makes them cite you instead of a competitor.
llms.txt vs robots.txt: What Each Does for AI
Both files live at your site root, but they do different jobs. One controls access, the other describes content. Why you need both.