Add .claude directory

.claude/CLAUDE.md

@@ -0,0 +1,47 @@
+# stripe-python
+
+## Testing
+
+- Run all tests: `just test`
+- Run a specific test by name: `just test-one test_name`
+- Run a specific test file: `just test tests/path/to/test_file.py`
+
+## Formatting & Linting
+
+- Format: `just format` (uses ruff)
+- Lint: `just lint` (uses flake8)
+- Typecheck: `just typecheck` (uses pyright)
+
+## Key Locations
+
+- HTTP client (request execution, retries, headers): `stripe/_http_client.py`
+- Main client class: `stripe/_stripe_client.py`
+- Client options/config: `stripe/_client_options.py`
+- API requestor (request building, auth): `stripe/_api_requestor.py`
+
+## Generated Code
+
+- Files containing `File generated from our OpenAPI spec` at the top are generated; do not edit. Similarly, any code block starting with `The beginning of the section generated from our OpenAPI spec` is generated and should not be edited directly.
+    - If something in a generated file/range needs to be updated, add a summary of the change to your report but don't attempt to edit it directly.
+- Most files under `stripe/` resource subdirectories (e.g. `stripe/_customer.py`, `stripe/params/`, `stripe/resources/`) are generated.
+- The HTTP client layer (`_http_client.py`, `_stripe_client.py`, `_api_requestor.py`, `_client_options.py`) is NOT generated.
+
+## Conventions
+
+- Uses `requests` library by default for sync HTTP, `httpx` for async
+- Type hints throughout
+- Virtual env managed in `.venv/`; `just` recipes handle setup automatically
+- Work is not complete until `just test`, `just lint` and `just typecheck` complete successfully.
+- All code must run on all supported Python versions (full list in the test section of @.github/workflows/ci.yml)
+
+### Comments
+
+- Comments MUST only be used to:
+    1. Document a function
+    2. Explain the WHY of a piece of code
+    3. Explain a particularly complicated piece of code
+- Comments NEVER should be used to:
+    1. Say what used to be there. That's no longer relevant!
+    2. Explain the WHAT of a piece of code (unless it's very non-obvious)
+
+It's ok not to put comments on/in a function if their addition wouldn't meaningfully clarify anything.

.vscode/settings.json

@@ -14,7 +14,7 @@
     "venv": true
   },
   // uses default venv name from Makefile
-  "python.defaultInterpreterPath": "./venv/bin/python",
+  "python.defaultInterpreterPath": "",
 
   // Formatting
   "editor.formatOnSave": true,