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MUD
by
Andrew Goetz
· GitHub ↗
· v1.0.1
410
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2
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Install in OpenClaw
/install mud
Description
Operate and maintain the persistent MUD agent for OpenClaw. Use when running MUD engine commands, smoke-testing mud state behavior, validating save/restore,...
Usage Guidance
This skill appears to do what it says: it runs your local MUD engine. Before using it, inspect the local mud_agent.py (and any engine code) in the referenced workspace paths, because the helper will import or execute that file — which runs arbitrary local code. Only run this skill if you trust the engine source; prefer running it as a non-administrative user or in a sandboxed environment. Also verify there are no unexpected network calls or hardcoded secrets in the engine code if you will run commands that could trigger them. If you need platform-agnostic usage, note the README references Windows-style paths; confirm the correct workspace path on your host.
Capability Analysis
Type: OpenClaw Skill
Name: mud
Version: 1.0.1
The skill is classified as suspicious due to the direct execution of user-controlled input via `subprocess.run` in `scripts/mud_cmd.py`. While `shlex.split` is used to parse arguments, mitigating direct shell injection, it still presents a risk of argument injection into the underlying `mud_agent.py` script or more sophisticated prompt injection attacks against the AI agent's interpretation of the command. There is no clear evidence of intentional malicious behavior like data exfiltration or backdoor installation, but the pattern of executing user-provided commands without robust input validation beyond `shlex.split` constitutes a significant vulnerability.
Capability Assessment
Purpose & Capability
Name/description match the actual behavior: the skill is an operations wrapper to run a local MUD engine (either by importing a legacy MudAgent or invoking mud_agent.py). It requests no external credentials, binaries, or installs, which is appropriate for a local ops helper.
Instruction Scope
SKILL.md instructs the agent to locate the engine directory and run the included wrapper script with a command string. The script only reads mud_agent.py to detect engine style and then either imports it or runs it as a subprocess. There is no instruction to read unrelated system files, exfiltrate data, or contact external endpoints in the skill itself.
Install Mechanism
No install spec is present (instruction-only plus a small helper script). Nothing is downloaded or written to disk by the skill itself, which minimizes install risk.
Credentials
The skill requires no environment variables or credentials, which is appropriate. One important operational note: the script executes or imports local code (mud_agent.py) found in the workspace. That means the effective privileges and behavior depend entirely on the contents of that engine file — importing or running it will execute arbitrary code from the local project. That is expected for an ops wrapper, but users should ensure the engine code is trusted.
Persistence & Privilege
always:false (default) and no requests to modify other skills or system-wide agent settings. The skill does not request permanent presence or elevated platform privileges.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install mud - After installation, invoke the skill by name or use
/mud - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.1
- Added documentation for new image-related engine commands: `check-image-cooldown`, `record-image`, and `generate-image`.
- Included usage examples for image generation commands in the command runner section.
- Noted that image generation is available when the runtime image pipeline is configured.
v1.0.0
Initial release by agigui and lia.
Metadata
Frequently Asked Questions
What is MUD?
Operate and maintain the persistent MUD agent for OpenClaw. Use when running MUD engine commands, smoke-testing mud state behavior, validating save/restore,... It is an AI Agent Skill for Claude Code / OpenClaw, with 410 downloads so far.
How do I install MUD?
Run "/install mud" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is MUD free?
Yes, MUD is completely free (open-source). You can download, install and use it at no cost.
Which platforms does MUD support?
MUD is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created MUD?
It is built and maintained by Andrew Goetz (@andrew-goetz-com); the current version is v1.0.1.
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