Glossary, in plain English

Short, plain-English definitions of the AI agent and security terms we use.

AI agent
A program that uses an AI model to take actions for you, such as reading email, running tools or browsing, rather than only answering questions.
OpenClaw
A popular self-hosted personal AI agent, previously published as Clawdbot and Moltbot.
Gateway
The part of OpenClaw that accepts commands from your chat apps, the Control UI and other clients. By default it listens on port 18789.
Loopback
A network address (127.0.0.1 or localhost) that only the same computer can reach. A gateway bound to loopback can't be reached from other machines.
Bind address
The network address a service listens on. Loopback means this machine only; 0.0.0.0 or a LAN address means other machines can connect.
Exposed agent
An agent whose control panel or API can be reached from the public internet without a password or token.
Token auth
Requiring a long secret token before the gateway accepts a connection. It stops strangers who can reach the port from using it.
Reverse proxy
A server (such as Caddy or Nginx) that sits in front of another service and forwards traffic to it. A misconfigured proxy can make a local-only service public.
Tailscale Serve
A way to reach a service on your own private Tailscale network without opening it to the public internet.
Skill
An add-on that gives an OpenClaw agent a new ability. Skills are third-party code that runs with your agent's access.
ClawHub
The public marketplace where OpenClaw skills are shared.
Plugin
An extension that changes how OpenClaw itself works, for example adding a web search or voice provider.
MCP server
A tool server that speaks the Model Context Protocol, letting an AI assistant call its functions. Like a skill, it's code you choose to trust.
Tool poisoning
Hiding malicious instructions in a tool's description or output so an AI agent follows them.
Prompt injection
Text that tricks an AI model into ignoring its instructions, for example a line hidden in an email telling your agent to forward your files.
Indirect prompt injection
Prompt injection that arrives through content the agent reads (a web page, document or email) rather than from the person chatting with it.
Sandbox
An isolated environment, such as a container, that limits what a program can touch on your computer.
Heartbeat
An OpenClaw setting that wakes your agent on a schedule. Each wake-up is a paid model call, so frequent heartbeats on expensive models cost money even when nothing happens.
API key
A secret that lets software use a paid service (like OpenAI or Anthropic) on your account. Anyone who has it can spend your money.
Key rotation
Replacing a key with a new one and revoking the old one, so a leaked copy stops working.
Secret reference
A setting that points to where a secret is stored (for example an environment variable) instead of writing the secret itself into a config file.
Spend limit
A hard monthly cap set in your AI provider account. Unlike an email alert, it stops usage when reached.
CVE
A public ID for a known security vulnerability, such as CVE-2026-25253.
Security advisory
A published notice of a vulnerability and the version that fixes it. GitHub advisories have IDs starting GHSA-.
Supply-chain attack
An attack that hides malicious code in something you install, such as a skill, plugin or package, instead of attacking you directly.
Allowlist
A list of who is allowed to do something, for example which people may send your agent direct messages.
Penetration test
A hands-on attempt by a security professional to break into a system with permission. Our check isn't one.
Look-only check
A check that only reads what you give it, or makes ordinary requests, and never logs in, exploits or changes anything.

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