# Agent readability glossary: llms.txt, MCP, A2A & more

> This glossary defines the core vocabulary of agent readability: the files, protocols, and concepts that determine whether AI agents can discover, parse, and act on a website. Each definition is deliberately concise.

- Slug: agent-readability-glossary-llms-txt-mcp-a2a-more
- Record: cmp_agent-readability-glossary-llms-txt-mcp-a2a-more
- Kind: webmcp
- Functions: code, connect, auth, browser, crawl, extract, identity, index
- Score: 9
- Observed sample: This component is not in Leyline's observed sample.

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