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+---
+name: python-arango-development
+description: >-
+  Maintain and extend python-arango, the ArangoDB Python driver. Use for
+  driver features, bug fixes, refactoring, and related tests or documentation,
+  rather than application code that uses the driver.
+---
+
+# Python driver development
+
+Follow the repository's [AGENTS.md](../../../AGENTS.md) for setup, validation
+commands, and contribution rules.
+
+Before changing an operation, trace a neighboring method with a similar
+request and response shape. Public API methods usually construct a `Request`,
+define a response handler, and call `self._execute(request, response_handler)`.
+See `arango/api.py`, `arango/request.py`, and the API group being changed.
+Keep request construction and response conversion at the same layer as the
+neighboring operations.
+
+Preserve execution through `_execute` when following this pattern. It delegates
+to the configured executor in `arango/executor.py`, supporting default, async,
+batch, and transaction contexts. Calling the connection directly can bypass
+that behavior. Preserve `Result[T]` annotations where applicable: an operation
+can return a value, an async or batch job, or `None`, depending on its context.
+See `arango/result.py` for the shared type.
+
+For endpoint or option changes, verify the server HTTP API for the targeted
+ArangoDB versions. Map Python option names to the specified wire names and
+locations: endpoint path, `params` for query parameters, `headers`, or `data`
+for the body. Preserve existing defaults and distinguish omitted options from
+explicit `False`, `0`, or empty values. Where `None` means omission, use
+`is not None` rather than a truthiness check. `normalize_params` in `arango/request.py`
+stringifies supplied values, including `None`; omit such query entries before
+constructing the request. Keep explicit JSON nulls where the body contract
+requires them.
+
+Follow the neighboring handler's success checks and response formatting;
+reuse helpers in `arango/formatter.py` where applicable. Preserve Python-facing
+field names, return shapes, and silent-operation results. Handle special
+statuses before the general failure check where required, such as revision
+conflicts. Raise the operation-specific exception from `arango/exceptions.py`
+with `(resp, request)` to retain HTTP and ArangoDB error details. Keep signatures,
+annotations, and Sphinx parameter and return documentation aligned. Cover
+omitted and explicit option values, result conversion, and affected error
+paths in regression tests.
+
+Add focused regression coverage in the relevant `tests/test_*.py` module,
+reusing fixtures and helpers from `tests/conftest.py` and `tests/helpers.py`.
+Check the affected request mapping, result, or error behavior; exercise related
+execution contexts when the change affects them.
+
+For test selection, inspect fixture dependencies in `tests/conftest.py`.
+Pytest normally connects to ArangoDB and creates test resources during
+configuration, even for database-free tests or collection. Use
+`--skip-arango-setup` only for tests that need no configured database fixtures,
+for example:
+
+```sh
+python -m pytest tests/test_request.py --skip-arango-setup
+```
+
+This flag bypasses setup; it does not make integration tests run offline.
+For server behavior, run the relevant test against a disposable ArangoDB
+instance using AGENTS.md. Match the actual topology: pass `--cluster` for a
+cluster, omit it for a single server. The flag does not start a cluster.
+Check version and capability skips in the selected tests; skipped cases do
+not validate the change. Start with the affected test, expand for changed
+contracts, and report any unverified behavior.