Engine

Rule engine reference — decision tables, Rete algorithm, forward/backward chaining, and business rule management. Use when evaluating business rules, building decision trees, or implementing policy engines.

Engine — Rule Engine & Decision Logic Reference

Quick-reference skill for rule engines, decision tables, and business rule patterns.

When to Use

• Implementing business rules that change frequently
• Building decision trees or scoring systems
• Choosing between rule engine approaches
• Designing policy engines for access control or pricing
• Separating business logic from application code

Commands

intro

scripts/script.sh intro

Overview of rule engines — types, benefits, when to use.

patterns

scripts/script.sh patterns

Rule engine patterns — forward chaining, backward chaining, Rete.

tables

scripts/script.sh tables

Decision tables — structure, completeness, and implementation.

dsl

scripts/script.sh dsl

Domain-specific languages for rules — syntax approaches and examples.

tools

scripts/script.sh tools

Rule engine tools — Drools, OPA, json-rules-engine, and more.

scoring

scripts/script.sh scoring

Scoring and ranking engines — weighted rules, multi-criteria decisions.

testing

scripts/script.sh testing

Testing rule engines — coverage, conflict detection, regression.

checklist

scripts/script.sh checklist

Rule engine implementation checklist.

help

scripts/script.sh help

version

scripts/script.sh version

Configuration

Variable	Description
ENGINE_DIR	Data directory (default: ~/.engine/)

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