🚀 Production-Ready Beta

Build Expert Systems in Swift

SLIPS is a modern, type-safe implementation of CLIPS expert system shell. Create rule-based AI systems with Swift's power and safety.

Get Started → View Docs

43 Swift Files

12K+ Lines of Code

160+ Built-in Functions

import SLIPS

// Create environment
CLIPS.createEnvironment()

// Define rule
CLIPS.eval(expr: """
(defrule greet-adult
  (person (name ?n) (age ?a&:(>= ?a 18)))
  =>
  (printout t "Hello " ?n crlf))
""")

// Run engine
CLIPS.run()
                

Why Choose SLIPS?

Modern expert system development with Swift's elegance and power

🛡️

Type Safe

Leverage Swift's robust type system for compile-time safety and modern error handling.

⚡

RETE Algorithm

Efficient pattern matching with alpha/beta networks and incremental updates.

🎯

Pattern Matching

Complete support for multifield, NOT, EXISTS, and complex predicates.

📦

Zero Dependencies

Pure Swift implementation using only Foundation. No external dependencies.

🔧

160+ Functions

Rich built-in library: math, strings, multifield operations, templates, and more.

🎓

Module System

Organize rules with defmodule, focus stack, and import/export capabilities.

Get Started in Seconds

Add SLIPS to your Swift project with Swift Package Manager

$ swift package init --type executable

$ Add to Package.swift:

.package(url: "https://github.com/gpicchiarelli/SLIPS")

$ swift build

✓ Build complete!