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Free tools for Claude Code & AI builders
Small, sharp utilities we built for ourselves. Use them free — then generate a full skill from any source on Loreto.
Quick answer
Loreto offers free tools for Claude Code builders: a SKILL.md linter & generator, a Claude token & cost calculator, and an llms.txt generator for AI-search discoverability.
Free tool
SKILL.md linter & generator
Write or validate a Claude Code SKILL.md — correct frontmatter, structure, and naming, checked live.
Free tool
Claude token & cost calculator
Estimate tokens and USD cost of a Claude API call across every current model.
Free tool
llms.txt generator
Generate a spec-compliant llms.txt so GPTBot, ClaudeBot and Perplexity understand your site.
Go from tool to full skill
These tools scratch an itch. Loreto turns your whole workflow into a Claude Code skill your agent can run.