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The following commit(s) were added to refs/heads/main by this push:
new 266ae3052 docs: add AGENTS.md with build, test, and Spark diff
guidance (#4083)
266ae3052 is described below
commit 266ae30529b7b525daddf0112e26e4d6539a9c0c
Author: Andy Grove <[email protected]>
AuthorDate: Tue May 12 11:40:27 2026 -0600
docs: add AGENTS.md with build, test, and Spark diff guidance (#4083)
---
AGENTS.md | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 000000000..683dcbe3e
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,35 @@
+<!--
+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.
+-->
+
+# Agent Guidelines for Apache DataFusion Comet
+
+Read the [Contributor Guide](docs/source/contributor-guide/index.md) before
making changes.
+Relevant entry points:
+
+- [Development Guide](docs/source/contributor-guide/development.md): build,
test, and common
+ pitfalls (including why `-pl` must not be used and the JVM/native build
order).
+- [Spark SQL Tests](docs/source/contributor-guide/spark-sql-tests.md): the
only supported way
+ to modify files under `dev/diffs/`. **Never hand-edit a diff file.** Clone
Spark, apply the
+ existing diff, modify the Spark source, then regenerate the diff as
documented there.
+- [Adding a New
Expression](docs/source/contributor-guide/adding_a_new_expression.md) /
+ [Adding a New
Operator](docs/source/contributor-guide/adding_a_new_operator.md).
+- [Debugging Guide](docs/source/contributor-guide/debugging.md).
+
+When opening a pull request, use the [PR
template](.github/pull_request_template.md) and fill
+in every section.
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