What this skill does
Extract invariant principles from any text — find the ideas that survive rephrasing.
PBE Extractor 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 PBE Extractor
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
pbe-extractorand 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 PBE Extractor with a single command:
openclaw skills add pbe-extractor
This pulls pbe-extractor from ClawHub and installs it into ~/.openclaw/skills/pbe-extractor/. Restart the OpenClaw gateway afterwards so the new skill is discovered.
How to use PBE Extractor
Once installed, PBE Extractor 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
pbe-extractor-1.0.3.zipdirectly from our S3 mirror. - Unzip into
~/.openclaw/skills/pbe-extractor/(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 PBE Extractor?
Install PBE Extractor in the OpenClaw Easy desktop app by opening the Skills panel, searching for pbe-extractor, and clicking Install. From a terminal you can run: openclaw skills add pbe-extractor. Either way the skill is placed in ~/.openclaw/skills/pbe-extractor/.
Is PBE Extractor free?
Yes. PBE Extractor 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 PBE Extractor do?
Extract invariant principles from any text — find the ideas that survive rephrasing.
Related: more developer tools skills
If PBE Extractor looks useful, you may also want to check out other developer tools skills in the OpenClaw catalog:
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Free, open-source · Apache-2.0 · Works with Claude, ChatGPT, Gemini, or local Ollama models