cybersync_search_knowledge

THE RISK

Low Risk

Why cybersync_search_knowledge needs a policy

This tool queries/searches a knowledge base without creating, modifying, deleting, or executing operations. It is purely informational retrieval. The low severity reflects that searching a knowledge base carries minimal risk even if an AI agent misuses it, as the worst case is information disclosure or resource exhaustion rather than data loss or unauthorized changes.

From the tool's definition Tool name includes 'search' and description states 'Search the unified knowledge base across all AI tools and nodes' — a retrieval operation with no modification or side effects.

Documented attack patterns abuse exactly the kind of access cybersync_search_knowledge gives an agent:

POLICY

How to control cybersync_search_knowledge

PolicyLayer is an MCP gateway — it sits between your AI agents and OmniWire, and nothing reaches the server without passing your rules. This is the rule we recommend for cybersync_search_knowledge:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "cybersync_search_knowledge": {}
  }
}

cybersync_search_knowledge is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register OmniWire — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about cybersync_search_knowledge

What does the cybersync_search_knowledge tool do? +

Search the unified knowledge base across all AI tools and nodes. It is categorised as a Read tool in the OmniWire MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on cybersync_search_knowledge? +

Register the OmniWire MCP server in PolicyLayer and add a rule for cybersync_search_knowledge: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches OmniWire. Nothing to install.

What risk level is cybersync_search_knowledge? +

cybersync_search_knowledge is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit cybersync_search_knowledge? +

Yes. Add a rate_limit block to the cybersync_search_knowledge rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block cybersync_search_knowledge completely? +

Set action: deny in the PolicyLayer policy for cybersync_search_knowledge. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides cybersync_search_knowledge? +

cybersync_search_knowledge is provided by the OmniWire MCP server (voidchecksum/omniwire). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every OmniWire tool call.

Start from OmniWire, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →