Dnd Oracle

Bundles the entire D&D 5e System Reference Document as a local SQLite database and exposes 10 tools for querying it without network calls or hallucination risk. You get full-text search across 334 monsters, 319 spells, and 237 equipment items with filters for CR, spell level, school, damage types, and item properties. The analytical tools are where it gets useful: build_encounter calculates XP budgets and suggests monster combinations, plan_spells tracks available slots and concentration for any class and level, compare_monsters runs side-by-side stat analysis, and analyze_loadout totals weight and AC from gear lists. Runs via npx with no auth required. Ground truth data means you can trust stat blocks during session prep or mid-game lookups.