trustline 0.1.1

Compiler for business invariants across data-product boundaries.

Trustline

Business systems fail at the boundaries. Trustline verifies the boundaries.

Trustline compiles YAML contracts into SQL checks and produces a measurable integrity scorecard. See Why Trustline for the seam problem and compiler model.

Quickstart

pip install trustline
ACME=$(python -c "from trustline.examples import acme_stream_dir; print(acme_stream_dir())")
trustline validate --contracts "$ACME/contracts"
trustline audit \
  --contracts "$ACME/contracts" \
  --target duckdb \
  --profiles "$ACME/profiles.yml.example"

The example audit exits 1 — the fixture intentionally includes failing checks.

Contributors: clone the repo and run make install-dev. See Getting Started.

What Trustline is not

• Not an orchestrator — integrates with Airflow and Dagster; does not replace them
• Not a transform framework — extends dbt; does not replace it
• Not a model training runtime — no training, inference, or feature store
• Not a hosted SaaS — CLI you run in CI or on a schedule
• Not auto-remediation — detects and reports; never auto-fixes

Documentation

Document	Description
Why Trustline	Problem statement and compiler model
Patterns	Boundary failure catalog
Stability	Contract and CLI semver policy
Getting Started	Install and CLI
Overview	Commands, phases, architecture
Contract Spec	YAML schema
Contributing	Development

Development

make check    # format, lint, types, tests, coverage
make test

License

Apache 2.0