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Table of Contents
Abstract
Introduction
Simple Example
Syntactic Notation
Domains
Summary
This manual describes the syntax of PDDL, the Planning Domain Definition Language, used for the AIPS-98 planning competition. It covers various syntactic features like STRIPS-style actions, conditional effects, universal quantification, domain axioms, safety constraints, hierarchical actions, and management of multiple domains. PDDL is intended to express the 'physics' of a domain without providing search-control advice. It is descended from various formalisms and aims to encourage sharing of problems and algorithms for meaningful comparison of planner performance. The manual provides a notation for problems used in the AIPS-98 planning contest.