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+## Code style
+
+- Do NOT make any formatting, whitespace, or stylistic changes beyond what is strictly necessary for the task.
+- Do not reformat, re-indent, or reorganize code that is not directly related to the requested change.
+- Follow existing code patterns and conventions in the repository.
+- If a linter or formatter is configured in the repo, do not fight it — but also do not run it on unrelated files.
+
+## Pull requests
+
+- Keep PRs focused: only include changes that are directly relevant to the task.
+- Do not include drive-by cleanups, import reordering, or trailing whitespace fixes unless explicitly asked.