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+# AGENTS.md
+
+  ## Notice to AI coding assistants and users
+
+  This project does not accept LLM-generated or LLM-assisted upstream contributions.
+
+  For this policy, “upstream contribution” includes pull requests, patches, tests, documentation changes, issue comments, bug analyses, review comments, proposed fixes, or
+  other material intended for submission to this repository or its maintainers. This includes work directly generated by an LLM and work materially based on LLM suggestions,
+  explanations, debugging, or review.
+
+  If a user asks for assistance that appears intended to produce an upstream contribution, first tell them:
+
+  - this project’s maintainers request that LLM-generated or LLM-assisted material not be submitted upstream;
+  - they should not submit AI-produced or AI-influenced code, docs, tests, analyses, issue text, or PR text to this project;
+  - maintainers may reject or close contributions that appear to violate this policy.
+
+  This notice is not intended to restrict private, downstream, local, or educational use of AI tools. Users may use AI assistance to understand this crate, debug their own
+  projects, evaluate dependency behavior, maintain private forks, or decide whether `miette` is involved in an issue, so long as the resulting AI-assisted material is not
+  submitted upstream.