ModsFinder

Create Bugfix: Schematic Patch

by cff1028

Create Bugfix: Schematic Patch is a NeoForge server mod that scans schematics uploaded to Create and blocks ones carrying illegal components.

NeoForgeServer required, client optionalMIT LicenseOpen source1.21.1

What it does

The mod targets an exploit in Create's schematic item, which can store blocks and items with illegal components that let players obtain items they could not normally get in survival. Uploaded schematics are scanned in real time, and data sanitization strips illegal components and blacklisted blocks before the schematic is used.

Anomalous schematics are logged and a warning is sent to the server when a player uploads one. The original file is backed up under the schematics/anomaly folder, grouped by player name, so server owners keep evidence. Blacklist entries and NBT filter rules are set in schematicsfix-common.toml and schematicsfix.yaml, and the schematic-config reload command applies changes.

Create is a required dependency. It is required on the server and optional for players. The mod is open source under the MIT License, published for NeoForge with files for 1.21.1 only, and the latest file is 1.1.4 for 1.21.1, released 2025-10-07.

Key features

  1. Real-time schematic scanning

    Each schematic uploaded to the server is checked as it arrives, so the exploit is blocked before players can use the result.

  2. Data sanitization

    Illegal components and blacklisted blocks are removed automatically from schematics that fail the scan.

  3. Alert logging

    The server issues a warning when a player uploads an anomalous schematic, and the file is kept for later inspection.

  4. Configurable filter rules

    Blacklist entries and custom NBT filter rules are defined in TOML and YAML files, with a reload command to apply them.

Compatibility

Latest build for each game version and loader.

1.21.11.1.4
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

CreateAesthetic Technology that empowers the Player
Required

Questions

Does Schematic Patch need Create?

Yes. Create is a required dependency, and the mod fixes an exploit in Create's schematic item, so Create must be installed on the server.

Do players need to install Schematic Patch?

No. It is required on the server and optional for players.

Where are anomalous schematics saved?

They are backed up at schematics/anomaly/playername/schematic.nbt, so each player's flagged files stay separate.

How are the filter rules changed?

Blacklisted blocks go in schematicsfix-common.toml, and custom NBT filter rules are written in schematicsfix.yaml. Running schematic-config reload applies the changes.

In the catalog

Create Bugfix: Schematic Patch is one of 3,545 Optimization mods on ModsFinder, and one of 1,250 Optimization mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

Optimization mods3,545NeoForge modsMods for 1.21.132,366

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What the author says

This mod fixes a critical schematic item exploit in the Create mod for Minecraft 1.21+. Please note: when using the mod for the first time on your server (mod_version ≥1.1), execute the command /schematic-config reload to initialize the mod configuration. Create's schematics could store blocks/items with illegal…
cff1028, on the Modrinth page

Official listing

Owner
cff1028
Published
2025-07-23
Updated on Modrinth
2025-10-07
Facts verified
2026-10-15

Tags

Optimization
Open on ModrinthCompare