gw1-mcp

A Guild Wars 1 build compiler for LLMs

An MCP (Model Context Protocol) server that gives any compatible LLM client (Claude, ChatGPT, Cursor…) reliable, deterministic knowledge of Guild Wars 1 builds: skill data lookup, official template code encoding/decoding, and build validation.

The MCP is a compiler, not a brain. The LLM does the strategic reasoning; this server does the things that must be exact.

Why not just ask the LLM?

Ask an AI assistant for a Guild Wars build without this server and you typically get: a plausible-sounding bar with a skill that does not exist, an attribute spread that exceeds the point budget, stats quoted from a decade-old balance patch — and a template code that decodes to garbage when you paste it in-game, because codes are bit-packed and cannot be hallucinated character-by-character.

With gw1-mcp connected, the same assistant looks up the 1485 real skills (current with Reforged balance, refreshed weekly), validates the build against the actual game rules, and hands you an official template code produced by an encoder — not predicted by a language model. The strategic conversation stays exactly as good as your assistant; the facts stop being wrong.

Tools

• get_skill — full record for one skill (by exact name or template id), with closest-match suggestions on typos
• search_skills — filtered search: profession, attribute, campaign, elite, name substring
• decode_template — in-game template code → professions, attributes, 8 skills with stats
• encode_template — named build → validated, official in-game template code
• validate_build — GW1 rule check: one elite max, profession/attribute ownership, primary attributes, duplicates
• get_hero — hero record by exact name or GWCA id
• list_heroes — hero roster with professions, campaigns and unlock notes, filterable by profession/campaign
• decode_pawned_team — paw-ned2 team blobs (PvXwiki team pages) → every bar decoded

Resources: gw1://guide/build-workflow (methodology for the LLM), gw1://meta (professions, attribute lines, campaigns, skill-type list and data import date) and gw1://heroes.

Quick start