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Modbus
by
BytesAgain2
· GitHub ↗
· v1.0.0
· MIT-0
146
Downloads
0
Stars
1
Active Installs
1
Versions
Install in OpenClaw
/install modbus
Description
Modbus communication protocol tool. Use when json modbus tasks, csv modbus tasks, checking modbus status.
Usage Guidance
This skill appears low-risk and does what it says: it runs a local shell script that stores data in a configurable directory (default ~/.modbus). Before installing, review that you are comfortable with the agent running the included script and writing files to that directory. If you set MODBUS_DIR, do not point it to sensitive system locations (e.g., /, /etc, other apps' config dirs) because the script will create and modify files under whatever path is provided. Note there are no network calls or credential requests in the bundled script. If you need additional assurance, compare the included files to the upstream repo (https://github.com/bytesagain/ai-skills) and run the script manually in a controlled environment first.
Capability Analysis
Type: OpenClaw Skill
Name: modbus
Version: 1.0.0
The 'modbus' skill contains significant input sanitization vulnerabilities in 'scripts/script.sh', most notably a potential remote code execution (RCE) risk in the 'cmd_config' function where unvalidated input is passed directly into a 'sed -i' command. Additionally, the 'cmd_add' function is vulnerable to JSON injection when writing to the local data store. The tool is also misleadingly described in 'SKILL.md' as a Modbus communication protocol tool, despite lacking any actual industrial protocol implementation and functioning only as a basic local text logger.
Capability Assessment
Purpose & Capability
Name/description match the implementation: the script implements status/add/list/search/remove/export/stats/config functionality for Modbus-related entries stored under a data directory. No unexpected services or credentials are requested.
Instruction Scope
SKILL.md instructs running the bundled shell script with discrete commands; the script only reads/writes files under DATA_DIR (default ~/.modbus) and does not reference other system paths, secrets, or network endpoints.
Install Mechanism
There is no install spec and the shipped script is included in the skill bundle; nothing is downloaded or installed from external URLs, so install risk is low.
Credentials
No required environment variables or credentials are declared. The script optionally respects MODBUS_DIR (documented), which is appropriate for configuring the data directory.
Persistence & Privilege
Skill is not forced-always, uses normal agent invocation, and only creates/updates files under its own data directory; it does not modify other skills or system-wide agent settings.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install modbus - After installation, invoke the skill by name or use
/modbus - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
publish v1.0.0
Metadata
Frequently Asked Questions
What is Modbus?
Modbus communication protocol tool. Use when json modbus tasks, csv modbus tasks, checking modbus status. It is an AI Agent Skill for Claude Code / OpenClaw, with 146 downloads so far.
How do I install Modbus?
Run "/install modbus" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Modbus free?
Yes, Modbus is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Modbus support?
Modbus is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Modbus?
It is built and maintained by BytesAgain2 (@ckchzh); the current version is v1.0.0.
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