YSM Mapping API Mod (1.21.1, 1.20.1) – Keep Yes Steve Model Addons Working

YSM Mapping API Mod provides verified code symbols for Yes Steve Model so dependent mods work with it safely. Because the main character model mod hides its internal class, method, and field names, hard-coded connections break easily. During Minecraft startup, this library mod analyzes the bytecode inside the installed file and gives clear, verified matches to other mods that request them. It adds no items, blocks, models, menus, or standalone gameplay features on its own.

Features:

• Automatic Startup Analysis: Reads the installed Yes Steve Model file when Minecraft launches and shares verified code matches as typed symbols.
• Safe Mod Connections: Replaces fragile hard-coded names and refuses to guess unknown symbols if a newer build changes its internal code layout.
• Lets dependent mods hook into networking, client and server model sync, model and texture access, audio caches, player animations, equipment hooks, bones, and renderers.
• Includes a Mixin plugin and runtime reference wrapper for mods that connect to character model systems.
• Runs quietly in the background as a required dependency without adding extra blocks, items, or menus to your world.

Configuration:

This mod generates local setting and cache files automatically inside your game folder:

config/ysm_mapping_api/
├─ settings.json
└─ mappings.json

• settings.json: holds local settings for this library mod.
• mappings.json: saves the last verified code matches and reuses them on startup whenever Yes Steve Model and the requested symbols remain unchanged.

Requirements:

NeoForge RequiredFabric Loader RequiredFabric API RequiredMinecraft Forge RequiredYes Steve Model Mod Required

YSM Mapping API Mod Download Links