Copilot commented on code in PR #50375:
URL: https://github.com/apache/arrow/pull/50375#discussion_r4392572237


##########
AGENTS.md:
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+<!---
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+
+# AGENTS.md
+
+Guidance for AI coding agents working on Apache Arrow. It covers the
+conventions shared across the repository; component directories may
+carry their own `AGENTS.md` with build and test commands, and the
+closest file to the code you are editing takes precedence.
+
+## Repository Gotchas
+
+- This is a monorepo. The C++ library (`cpp/`) is the shared core;
+  PyArrow (`python/`), R (`r/`), and MATLAB (`matlab/`) bind to it
+  directly, C/GLib (`c_glib/`) wraps it, and Ruby (`ruby/`) binds to
+  C/GLib. A change in `cpp/` can break any of these, so check the
+  dependent bindings when you touch C++.
+- Java, Go, Rust, C#, JavaScript, Swift, and Julia are **not** in this
+  repository. They live in `apache/arrow-java`, `apache/arrow-go`,
+  `apache/arrow-rs`, `apache/arrow-csharp`, `apache/arrow-js`,

Review Comment:
   The C# implementation lives in `apache/arrow-dotnet`, as linked in 
`README.md:46` and `docs/source/implementations.rst:39`, not 
`apache/arrow-csharp`. Please use the correct repository name so agents 
following this routing guidance can locate the implementation.



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