D&D 5e DM Engine

What it does

This skill turns the agent into a Dungeon Master for solo D&D 5e play. It enforces a file-backed game state (markdown files under game/), uses helper scripts for dice, encounter validation, and lookups, and provides protocols for scene narration, NPC conversations, and checkpointing.

When to use it

Activate when running tabletop gameplay, creating or auditing encounters, rolling dice, or managing NPC-driven conversations. It's intended for agents that manage persistent game files and spawn sub-agents for NPCs.

What's included

• Scripts: multiple executable scripts (roll, validate-encounter, audit-encounters, calc-xp, dnd-lookup) for core game mechanics.
• References: extensive reference docs (combat.md, encounter-guidelines.md, quest-design.md, random-tables.md) to guide narration and encounter design.
• Instructions: strict rules for state management, checkpointing, scene boundaries, and NPC sub-agent flows to ensure reproducible campaigns.

Compatible agents

Best suited for code-capable agents that can run local scripts and manage file state (Claude Code, Claude plugins, or similar runtimes).