Development guide

Environment

pip install -e ".[dev,visualization]"

Verification

pytest -o addopts='' tests -q --tb=short --maxfail=0
ruff check fincore tests scripts examples benchmarks
ruff format --check fincore tests scripts examples benchmarks
python -m mypy fincore --ignore-missing-imports
python -m mkdocs build --strict

Package checks build source-only staging copies so ignored build/lib output cannot contaminate a wheel. Use the canonical operation and domain test suites when modifying an API; do not add root aliases or compatibility profiles.