What this skill does
Scans installed OpenClaw skills for malicious patterns including prompt injection, credential theft, data exfiltration, obfuscated payloads, and backdoors. Use when installing new skills, after skill updates, or for periodic security scans. Runs deterministic pattern matching — fast, offline, no API cost.
Skill Defender is part of the Messaging & Channels category — messaging and channel skills that connect your agent to chat platforms. You can install it on its own or alongside other messaging & channels skills from the OpenClaw catalog.
How to install Skill Defender
The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:
- Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
- Open the in-app Skills panel.
- Search for
skill-defenderand click Install. - The skill activates automatically when an incoming message matches its description.
Install from the command line
If you already run the OpenClaw CLI, add Skill Defender with a single command:
openclaw skills add skill-defender
This pulls skill-defender from ClawHub and installs it into ~/.openclaw/skills/skill-defender/. Restart the OpenClaw gateway afterwards so the new skill is discovered.
How to use Skill Defender
Once installed, Skill Defender activates on its own: when an incoming message on WhatsApp, Telegram, Slack, Discord, Feishu or Line matches the skill's description, your OpenClaw agent loads it and runs the workflow. You can also trigger it explicitly by describing the task in chat. No extra configuration is required after install.
Manual install (advanced)
If you prefer manual installation:
- Click the Download .zip button above to grab
skill-defender-1.0.0.zipdirectly from our S3 mirror. - Unzip into
~/.openclaw/skills/skill-defender/(create the directory if it does not exist). - Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.
Frequently asked questions
How do I install Skill Defender?
Install Skill Defender in the OpenClaw Easy desktop app by opening the Skills panel, searching for skill-defender, and clicking Install. From a terminal you can run: openclaw skills add skill-defender. Either way the skill is placed in ~/.openclaw/skills/skill-defender/.
Is Skill Defender free?
Yes. Skill Defender is free and open-source, distributed under the Apache-2.0 license through ClawHub. No account or payment is required to download or run it.
What does Skill Defender do?
Scans installed OpenClaw skills for malicious patterns including prompt injection, credential theft, data exfiltration, obfuscated payloads, and backdoors.
Related: more messaging & channels skills
If Skill Defender looks useful, you may also want to check out other messaging & channels skills in the OpenClaw catalog:
Browse the full OpenClaw skill catalog
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Free, open-source · Apache-2.0 · Works with Claude, ChatGPT, Gemini, or local Ollama models