chore: ai docs revamp

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,3 +1,9 @@
+<!--
+  IMPORTANT!!
+  If you generated this PR with the help of any AI assistance, please disclose it in the PR.
+  https://github.com/biomejs/biome/blob/main/CONTRIBUTING.md#ai-assistance-notice
+-->
+
 <!--
 	Thanks for submitting a Pull Request! We appreciate you spending the time to work on these changes.
 	Please provide enough information so that others can review your PR.

AGENTS..md

@@ -0,0 +1 @@
+CONTRIBUTING.md

CLAUDE.md

@@ -0,0 +1 @@
+CONTRIBUTING.md

CONTRIBUTING.md

@@ -5,6 +5,7 @@ We can use help in a bunch of areas and any help is greatly appreciated!
 ## Table of Contents
 
 - [🚀 Contributing](#-contributing)
+  * [AI assistance notice](#ai-assistance-notice)
   * [Asking questions, making proposals](#asking-questions-making-proposals)
   * [Reporting bugs](#reporting-bugs)
   * [Getting Started](#getting-started)
@@ -43,6 +44,30 @@ We can use help in a bunch of areas and any help is greatly appreciated!
     + [Maintainers team](#maintainers-team)
     + [Past Maintainers](#past-maintainers)
 
+## AI assistance notice
+
+> [!IMPORTANT]
+>
+> If you are using **any kind of AI assistance** to contribute to Biome,
+> it must be disclosed in the pull request.
+
+If you avail of AI assistance to make a pull request, you must disclose it in the
+pull request, together with the extent of the usage. For example, if you used
+AI to generate docs or tests, you must say it.
+An example disclosure:
+
+- > This PR was written primarily by Claude Code.
+- > I consulted ChatGPT to understand the codebase but the solution
+  > was fully authored manually by myself.
+
+Failure to disclose this is first and foremost rude to the human operators
+on the other end of the pull request, but it also makes it difficult to
+determine how much scrutiny to apply to the contribution.
+
+AI assistance isn't always perfect, even when used with the utmost care.
+
+Please be respectful to maintainers and disclose AI assistance.
+
 ## Asking questions, making proposals
 
 If you have any questions, proposals, or feedback, open a [GitHub discussion](https://github.com/biomejs/biome/discussions).