ty.toml

# ty Type Checker Configuration
# Migrated from pyproject.toml [tool.ty.*] sections

[environment]
# Target minimum supported Python version (not CI runtime version).
# CI runs 3.13, but we target 3.11 to ensure type compatibility
# across all supported versions per best practice.
python-version = "3.11"

[src]
include = ["src", "tests"]
exclude = [
  "scripts/",
  "docs/",
  "build/",
  "dist/",
  ".venv/",
  "**/__pycache__/",
]
respect-ignore-files = true

[rules]
division-by-zero = "error"
possibly-unresolved-reference = "error"
invalid-argument-type = "error"
missing-argument = "error"
unsupported-operator = "error"
unused-ignore-comment = "warn"
redundant-cast = "warn"
unresolved-import = "warn"

[terminal]
output-format = "full"
error-on-warning = false

# =============================================================================
# TEST FILES - RELAXED RULES
# =============================================================================
# ASYMMETRY WITH .pre-commit-config.yaml (intentional):
# - ty.toml: Includes tests/ with relaxed rules (comprehensive analysis)
# - Pre-commit: Excludes tests/ entirely (fast commits, no blocking)
# Rationale: Test code legitimately uses mocks, dynamic fixtures, and intentional
# type violations. We warn (not error) to surface issues without blocking commits.
# See: https://docs.astral.sh/ty/configuration/#per-directory-rule-overrides
[[overrides]]
include = ["tests/**"]

[overrides.rules]
possibly-unresolved-reference = "warn"
unresolved-import = "ignore"
# Additional rules relaxed to warn (from test errors analysis)
invalid-argument-type = "warn"
not-subscriptable = "warn"
unknown-argument = "warn"
unresolved-attribute = "warn"
invalid-assignment = "warn"
unsupported-operator = "warn"
missing-argument = "warn"
not-iterable = "warn"
division-by-zero = "warn"