A fast, type-safe Rust implementation of JSONLogic for evaluating logical rules as JSON. Perfect for business rules engines and dynamic filtering in Rust applications.

Library for go move generation and go ruling.

The open-source decision platform — author, test, and govern business rules at scale built in Rust

Streaming reasoning layer for AI. Incremental rules engine with vector search, graph traversal, and explainable derivation traces.

Rust AI agent orchestration platform with App Server, rules, skills, GC, and observability.

Fast pattern-matching library for filtering JSON events, now in rust.

The declarative services runtime for the AI era.

AI agents ignore markdown rules. Clotho doesn't ask — it enforces. Compile .n2 rules into state machine contracts, SQL-queryable blacklists, and deterministic execution plans. Rust + WASM. npm install n2-clotho.

A fast, expressive rule-based filtering engine for Rust — evaluate boolean expressions over any data structure

Open-source Magic: The Gathering client and rules engine, built around Forge compatibility.

A evaluation engine library for Rust.

High-performance Arrow-native rule engine with SQL-powered predicates for real-time event processing

The marking compiler. A bit like Ruff, if Ruff wore a trench coat 🕵

Windows-native event automation system for power users

Deterministic rule execution for decision systems — rule chaining, explain mode, batch evaluation, Python & WASM bindings. Built on jsonlogic-fast.

A simple rules engine for Rust, adapted from the Dredd implementation for Android.

Universal DSL for writing rules against the context in YAML, JSON, or TOML for applications in Rust.