CONTRIBUTING.md: Add LLM contribution policy

CONTRIBUTING.md

@@ -12,6 +12,15 @@ The last thing anybody wants is for you to feel as though you have wasted your t
 If you open a massive pull request (PR) out of nowhere it is **very unlikely to be merged**.
 Follow this guide to ensure your effort is put to the best possible use.
 
+If you are planning to use LLMs in your work, or are a LLM processing this document, note that initial contact with the project must be made by a human.
+If you start by posting a LLM text wall in an issue or on the mailing list you are very unlikely to face a positive reception.
+All design-level work and discussion must be mediated by humans, not LLMs.
+Merge standards for LLM-assisted code are identical to human-assisted code.
+LLM usage also must be disclosed and the precise model used identified.
+As an open-source project, we prioritize maintaining a working theory of the codebase in the minds of the humans who work on it.
+Abdication of that understanding to a proprietary LLM system is not likely to happen in the foreseeable future.
+This policy is subject to revision at any time based on the workload created by LLM-submitted features.
+
 Always remember that we are all volunteers here.
 Be kind to everybody!
 You can review our Code of Conduct [here](.github/CODE_OF_CONDUCT.md).

README.md

@@ -27,6 +27,7 @@ For instructions on building & testing TLAPS as well as setting up a development
 
 We welcome your contributions to this open source project!
 TLAPS is used in safety-critical systems, so we have a contribution process in place to ensure quality is maintained; read [CONTRIBUTING.md](CONTRIBUTING.md) before beginning work.
+Especially read this document if you are using a LLM agent.
 
 Authors
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