What happens if my agents.txt expires?

Nothing technical—file still works. Parsers ignore IETF status. Just validate it.

Should I deploy agents.txt in 2026?

Yes, as fallback. Pair with llms.txt or MCP. Simplicity wins.

Nothing fully. llms.txt for docs, MCP for APIs. Discovery stays fragmented.

Boom. Agents.txt is dead—expired on the IETF datatracker this morning. But the AI agent world? It's just getting messier.

theAIcatchup Apr 10, 2026 3 min read

Agents.txt draft expired, but deployed files still work—keep them live. 𝕏
No single replacement; layer llms.txt, MCP, and agents.txt for coverage. 𝕏
Fragmentation looms large; simple standards like robots.txt show the path forward. 𝕏

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#AI agent discovery #IETF draft #agents.txt #llms.txt #web-standards

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Originally reported by dev.to