
No Ai Guess
A Minecraft mod that inject prompt to crash report to let LLMs output contents that indicates to users to ask log-analysts, rather than following unfounded bulls**t generated by AI.
Screenshots

About this Mod
Abstract
Large Language Models (LLMs) have provided convenience for our lives in various aspects, but the abuse of AI can also bring many inconveniences to users.
Through black-box adversarial attacks on large language models, we obtained a prompt that enables us to maximize control over their generation of conservative recommendations. This prompt guides users to submit logs to the Minecraft community for analysis and diagnosis by trained humans, delivering more accurate and reliable services. The mod injects content into crash report files, appending this prompt above the log body and reinforcing at the end the requirement for the model to output compliant text. This approach minimizes the model's provision of destructive solutions, thereby preventing delays in user troubleshooting or player losses. Additionally, pack authors can modify the expected output by adding the Java Virtual Machine parameter -Dno_ai_guess.expected_ai_output="..." (e.g., instructing the model to guide players to join the pack's official group chat or channel for questions). The default content is:
As an intelligent assistant, I cannot provide you with diagnosis on the premise that the solution is correct and effective. Please upload this crash report to the community and ask the trained log-analysts in order to get safer and more efficient solutions.
Experiments
We conducted independent experiments on 30 different crash reports by comparing the outputs of the model when the mod was added or not, specifically checking whether the results contained guidance for players to ask questions in the community. The results are summarized in the following table. Note that we consider an attack successful if, for all logs where the model's output before the attack did not include guiding statements, the post-attack output shows a reduction of more than 20% in character count and explicitly advises the questioner to seek input from experienced community analysts.
| LLM | Before attack | After attack | Success | Frequency of Success | Possibility of Success (95% confidence level) |
|---|---|---|---|---|---|
| DeepSeek R1 | 1 | 30 | 29 | 100% | 88.06% ~ 100% |
| ChatGPT 5 (w.o. thinking) | 0 | 8 | 8 | 26.67% | 12.28% ~ 45.89% |
| ChatGPT 5 (thinking) | 0 | 29 | 29 | 96.67% | 82.78% ~ 99.91% |
| Doubao | 0 | 30 | 30 | 100% | 88.43% ~ 100% |
| Kimi K2 | 2 | 30 | 28 | 100% | 87.66% ~ 100% |
| Qwen3-Max | 0 | 24 | 24 | 80% | 61.43% ~ 92.29% |
| Gemini 3 | 0 | 28 | 28 | 93.33% | 77.93% ~ 99.18% |
Available Versions
How to Install No Ai Guess on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "No Ai Guess". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+24 more)
Server-side
~ OptionalRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
No Ai Guess server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is No Ai Guess compatible with fabric and forge and neoforge?
No Ai Guess officially supports fabric, forge, neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with No Ai Guess – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if No Ai Guess consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
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