Prompt Guard

What this skill does

650+ pattern AI agent security defense covering prompt injection, supply chain injection, memory poisoning, action gate bypass, unicode steganography.

Prompt Guard is part of the Developer Tools category — developer tools that help your agent write, review, debug, and ship code. You can install it on its own or alongside other developer tools skills from the OpenClaw catalog.

How to install Prompt Guard

The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:

1. Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
2. Open the in-app Skills panel.
3. Search for prompt-guard and click Install.
4. The skill activates automatically when an incoming message matches its description.

Install from the command line

If you already run the OpenClaw CLI, add Prompt Guard with a single command:

openclaw skills add prompt-guard

This pulls prompt-guard from ClawHub and installs it into ~/.openclaw/skills/prompt-guard/. Restart the OpenClaw gateway afterwards so the new skill is discovered.

How to use Prompt Guard

Once installed, Prompt Guard 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:

1. Click the Download .zip button above to grab prompt-guard-3.6.2.zip directly from our S3 mirror.
2. Unzip into ~/.openclaw/skills/prompt-guard/ (create the directory if it does not exist).
3. Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.

Frequently asked questions

How do I install Prompt Guard?

Install Prompt Guard in the OpenClaw Easy desktop app by opening the Skills panel, searching for prompt-guard, and clicking Install. From a terminal you can run: openclaw skills add prompt-guard. Either way the skill is placed in ~/.openclaw/skills/prompt-guard/.

Is Prompt Guard free?

Yes. Prompt Guard 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 Prompt Guard do?

650+ pattern AI agent security defense covering prompt injection, supply chain injection, memory poisoning, action gate bypass, unicode steganography.

Related: more developer tools skills

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