Contract Python Packages

flake8-functions-names

An extension for flake8 that validates functions names, decomposition and conformity with annotations.

valid8

Yet another validation lib ;). Provides tools for general-purpose variable validation, function inputs/outputs validation as well as class fields validation. All entry points raise consistent ValidationError including all contextual details, with dynamic inheritance of ValueError/TypeError as appropriate.

multicall-py

used to read multiply results in batch request

flunt

Python implementation of Domain Notification Pattern inspired by Flunt (.NET)

umcp

Contract-first validation framework for reproducible computational workflows. Six kernel invariants, 23 scientific domains, 746 proven theorems, 20,221 tests, three-layer C/C++/Python architecture, three-valued verdicts.

agentic-contract

Policy engine for AI agents — enforceable rules, risk limits, approval gates, obligation tracking, and violation detection. One .acon file. Rust core + MCP server.

pcontract

A data structure to track data over time. It works by tracking time/schedule information rather than tracking data changes over time.