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    2,055,424 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,392 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Mutant Skeleton Armor Tweaks

    Mod

    Mutant Skeleton Chestplate now compatible with crossbows!

    A92/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityMinecraft 1.20.1
    • ModpacksIn 10
    • ReleasesLatest 30 Sep

    Download

    mutant-skeleton-armor-tweaks-fabric-3.1.0+1.20.1.jar

    Released 30 Sep 2026 · 41.4 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Mutant MonstersAMinecraft 1.20.1 · Fabric (release 8.0.8)
    • S-LibAMinecraft 1.20.1 · Fabric (release 3.0.1)
    • Fabric APINeeded by Mutant MonstersAMinecraft 1.20.1 · Fabric (release 0.92.12)
    • Puzzles LibNeeded by Mutant MonstersAMinecraft 1.20.1 · Fabric (release 8.1.36)
    • Forge Config API PortNeeded by Mutant MonstersAMinecraft 1.20.1 · Fabric (release 8.0.3)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Security checks passed
    • Stable releases
    • Public source code and issue tracker
    • Widely used

    Points lost

    • Releases in only 4 of the last 24 months−3 points
    • First release only 8 months ago−3 points
    All 11 criteria

    • Maintenance

      3 points lost24 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.4 weeks ago (30 Sep 2026) 12 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.20.1 on Fabric and Forge. 34% of the 718 popular Fabric mods updated in the last 6 months also have files for 1.20.1. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 4 of the last 24 months 3 / 6

    • Stability

      Full points22 / 22
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.None of the 6 modpacks with two or more versions removed it 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.1 of its 11 releases in 2 years needed a quick fix (9%) 7 / 7
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5

    • Transparency

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · Stalemated/mutant-skeleton-armor-tweaks 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · Stalemated/mutant-skeleton-armor-tweaks 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.2,169,554 4 / 4

    • Track record

      3 points lost5 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.8 months, 14 releases 5 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total92 / 100

    65.3 of the 71 points that apply = 92 out of 100. The points above are rounded to whole numbers.

    About

    Mutant Skeleton Armor Tweaks customizes and balances the effects of the Mutant Skeleton armor set from Mutant Monsters. You can toggle the default effect of each armor piece through the in-game configuration or config file, with server settings synced to joining clients and in-game changes restricted to operators on servers. A configuration option lets the Mutant Skeleton Chestplate increase crossbow draw speed, and also affects other weapons tagged as ranged weapons. When Custom Tooltip API is installed, armor tooltips can display descriptions of effects enabled in the configuration, shown as potion effects for the leggings and boots or as additional text when the player presses the corresponding key. The Mutant Skeleton Skull also works with Eldritch End infusions.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 2 areas: Inventory and itemsChanges 4 game code files in this area: items, chests and other containers, crafting and enchanting. and Blocks and fluidsChanges 1 game code file in this area: how blocks, fluids and redstone work..

    Adds no new blocks, items or other content.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Details

    Creator
    Stalemated
    License
    MIT License
    Downloads
    2.2M
    Created
    14 Feb 2026
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · Both latest files checked, last on 16 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      2 latest files: the newest file for each Minecraft version and loader. Both are for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · Both files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of both files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign that AI was used to make it

    We looked for AI tools in its texts, files, images and code history and found none.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 6 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Nothing found
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      28 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
      1 image read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      23 code files read

    Compatibility

    See all 14 files
    Fabric
    Forge
    1.201.2126.126.3

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Needed in your game and on the server, or you cannot join.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.
    Mutant MonstersAS-LibA
    OptionalProjects it can work with but does not need. The author lists them.
    Custom Tooltip APIAYetAnotherConfigLib (YACL)A
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.It has no file for Minecraft versions newer than 1.20.1. Many recently updated mods still support 1.20.1.

    Modpacks using this project

    Find modpacks with it

    Modpacks that include Mutant Skeleton Armor Tweaks in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    Prominence™ II: Hasturian Era15.4M downloadslast version with it 23 Oct 2026Create Rust & Ruins672 downloadslast version with it 29 Sep 2026Smooth Odyssey309 downloadslast version with it 5 Oct 2026osakacraft270 downloadslast version with it 6 Mar 2026OS RPG Collection227 downloadslast version with it 25 Sep 2026FIGHTING DUNGEON212 downloadslast version with it 26 May 2026Dark RPG Mod Pack v1 by Ruavell125 downloadslast version with it 2 May 2026Prudence - YGG 4 Edition36 downloadslast version with it 11 Aug 2026A Military's Hierarchy32 downloadslast version with it 16 Sep 2026Voidborn Chronicles23 downloadslast version with it 13 Sep 2026

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    1.20.1·Fabric3.1.03.1.0 · mutant-skeleton-armor-tweaks-fabric-3.1.0+1.20.1.jarSends: None foundRequires:Mutant Monsters, S-LibPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge3.1.03.1.0 · mutant-skeleton-armor-tweaks-forge-3.1.0+1.20.1.jarSends: None foundRequires:S-Lib, Mutant MonstersPassedOur checks found nothing harmful in this file. Its code was read too.

    14 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Fabric3.1.03.1.0 · mutant-skeleton-armor-tweaks-fabric-3.1.0+1.20.1.jar (main file)·30 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 41.4 KB
    1.20.1The latest file for its Minecraft version and loader·Forge3.1.03.1.0 · mutant-skeleton-armor-tweaks-forge-3.1.0+1.20.1.jar (main file)·30 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 41.3 KB
    1.20.1·Forge3.0.13.0.1 · mutant-skeleton-armor-tweaks-forge-3.0.1+1.20.1.jar (main file)·8 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 44.5 KB
    1.20.1·Fabric3.0.13.0.1 · mutant-skeleton-armor-tweaks-fabric-3.0.1+1.20.1.jar (main file)·8 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 44.7 KB
    1.20.1·Fabric3.0.03.0.0 · mutant-skeleton-armor-tweaks-fabric-3.0.0+1.20.1.jar (main file)·30 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 44.8 KB
    1.20.1·Forge3.0.03.0.0 · mutant-skeleton-armor-tweaks-forge-3.0.0+1.20.1.jar (main file)·30 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 44.5 KB
    1.20.1·Fabric2.1.12.1.1 · mutant-skeleton-armor-tweaks-2.1.1.jar (main file)·25 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 28.4 KB
    1.20.1·Fabric2.1.02.1.0 · mutant-skeleton-armor-tweaks-2.1.0.jar (main file)·5 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 29.6 KB
    1.20.1·Fabric2.0.02.0.0 · mutant-skeleton-armor-tweaks-2.0.0.jar (main file)·27 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 24.7 KB
    1.20.1·Fabric1.2.01.2.0 · mutant-skeleton-armor-tweaks-1.2.0.jar (main file)·22 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 15.8 KB
    1.20.1·Fabric1.1.01.1.0 · mutant-skeleton-armor-tweaks-1.1.0.jar (main file)·21 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 15.8 KB
    1.20.1·Fabric1.0.21.0.2 · mutant-skeleton-armor-tweaks-1.0.2.jar (main file)·15 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 15.3 KB
    1.20.1·Fabric1.0.11.0.1 · mutant-skeleton-armor-tweaks-1.0.1.jar (main file)·14 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 15.3 KB
    1.20.1·Fabric1.0.01.0.0 · mutant-skeleton-armor-tweaks-1.0.0.jar (main file)·14 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 10.6 KB

    Quick fixes

    In the last 2 years, 1 release needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.1

    • mutant-skeleton-armor-tweaks-1.2.0.jar22 Feb 2026Fixed crash in servers caused by mixins being called twice…