diff --git a/AGENTS.md b/AGENTS.md
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--- a/AGENTS.md
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 ## Operational Guidance for Autonomous Agents Using specification (ABC Specification)
 
-MUST USE `index.md` as entrypoint for specification and subsequent referenced
-documents within.
+MUST USE `README.md` within same directory as this file as entrypoint for
+specification and subsequent referenced documents within.
 
 ### Purpose of this document
 
diff --git a/index.md b/README.md
similarity index 100%
rename from index.md
rename to README.md