Add AI policy page (#14473)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -31,3 +31,17 @@ previous discussions or decisions.
 - <...>
 - <...>
 - <...>
+
+
+## AI Disclosure
+
+<!--
+If AI was used in the preparation of this pull request, please disclose the
+tool(s) used, how they were used, and specify what code or text is AI generated.
+If no AI tools were used, please write "No AI tools used" in this section.
+Please read our policy on AI generated code:
+https://www.sphinx-doc.org/en/master/internals/ai-policy.html
+
+In particular, all interaction is to be done by humans, including submission
+of pull requests.
+-->

doc/internals/ai-policy.rst

@@ -0,0 +1,87 @@
+=========
+AI Policy
+=========
+
+"AI" herein refers to generative AI tools like large language models (LLMs)
+that can generate, edit, and review software code, create and manipulate
+images, or generate human-like communication.
+
+Responsibility
+--------------
+
+You are responsible for any code you submit to Sphinx's repositories,
+regardless of whether it was manually written or generated by AI. You must
+understand and be able to explain the code you submit as well as the existing
+related code. It is not acceptable to submit a patch that you cannot understand
+and explain yourself. In explaining your contribution, do not use AI to
+automatically generate comments, pull request descriptions, or issue
+descriptions. See below for our policy on AI translation systems.
+
+Disclosure
+----------
+
+You must disclose whether AI has been used to assist in the development of your
+pull request. If so, you must document which tool(s) have been used, how they
+were used, and specify what code or text is AI generated. We will reject any
+pull request that does not include the disclosure.
+
+Code Quality
+------------
+
+Contributors are expected to submit code that meets Sphinx's standards. We will
+reject pull requests that we deem to be "`AI slop`_". Do not waste developers'
+time by submitting code that is fully or mostly generated by AI, and doesn't
+meet our standards.
+
+.. _AI slop: https://en.wikipedia.org/wiki/AI_slop
+
+Copyright
+---------
+
+All code in Sphinx is released under the two clause BSD copyright license.
+Contributors to Sphinx license their code under the same license when it is
+included in Sphinx's version control repository. That means contributors must
+own the copyright of any code submitted to Sphinx or must include the BSD
+two clause compatible open source license(s) associated with the submitted code
+in the patch. Code generated by AI may infringe on copyright and it is the
+submitter's responsibility to not infringe. We reserve the right to reject any
+pull requests, AI-generated or not, where the copyright is in question.
+
+Communication
+-------------
+
+When interacting with developers (forums, discussions, issues, pull requests,
+etc.) do not use AI to speak for you, except for translation or grammar
+editing. If the developers want to chat with a chatbot, they can do so
+themselves. Human-to-human communication is essential for an open source
+community to thrive.
+
+AI Agents
+---------
+
+The use of an AI agent that writes code and then submits a pull request
+autonomously is not permitted. A human must check any generated code and submit
+a pull request according to the 'Responsibility' section above.
+
+Other Resources
+---------------
+
+While these do not formally form part of Sphinx's AI policy, the following
+resources may be helpful in understanding some pitfalls associated with using
+AI to contribute to Sphinx:
+
+- `LLVM AI tool policy`_
+- `Open source AI contribution policies`_
+- `Scientific Python community considerations around AI`_
+- `Python developer's guide to AI tools`_
+
+.. _LLVM AI tool policy: https://llvm.org/docs/AIToolPolicy.html
+.. _Open source AI contribution policies: https://github.com/melissawm/open-source-ai-contribution-policies
+.. _Scientific Python community considerations around AI: https://blog.scientific-python.org/scientific-python/community-considerations-around-ai/
+.. _Python developer's guide to AI tools: https://devguide.python.org/getting-started/ai-tools/index.html
+
+Acknowledgements
+----------------
+
+We thank the SciPy and NumPy developers, whose AI policy pages this document
+was adapted from.

doc/internals/index.rst

@@ -10,6 +10,7 @@ how to contribute to the project.
    :maxdepth: 2
 
    contributing
+   ai-policy
    release-process
    organization
    code-of-conduct