well-known URI
A path under /.well-known/ reserved for machine-readable declarations.
What well-known URI does not show
Agent-facing files are increasingly published there; serving one does not mean anything consumes it.
Related terms in Machine files
The files addressed to machines rather than readers, and what publishing one does and does not buy.
llms.txt · llms-full.txt · agents.md · entity map · entity map parity · machine layer · MCP · agent card · sitemap index · OpenAPI specification · ai.txt · Tool definition · SKILL.md · sitemap origin error · soft 404 on a machine file · tdmrep.json · TDM exception · security.txt · Content Signals · HTTP Message Signatures · changefreq and priority · staging leak · host duplicate
Questions about well-known URI
What is well-known URI?
A path under /.well-known/ reserved for machine-readable declarations.
What does well-known URI not show or guarantee?
Agent-facing files are increasingly published there; serving one does not mean anything consumes it.
Which area of the glossary does well-known URI belong to?
Machine files: The files addressed to machines rather than readers, and what publishing one does and does not buy.
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