AI agents call kobold_web_search to retrieve information from Kobold MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Web search is a read-only operation that retrieves publicly available information. It has no side effects on local systems or remote services. The blast radius of misuse is minimal—worst case, an AI agent performs unwanted searches, wasting resources or leaking information about search queries, but cannot damage systems or data. This is a typical 'search' or 'fetch' operation classified as Read.
From the tool's definition Tool name 'kobold_web_search' and description 'Search the web via DuckDuckGo' indicate a query operation that retrieves data without modifying or deleting anything.
Documented attack patterns abuse exactly the kind of access kobold_web_search gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kobold MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for kobold_web_search:
{
"version": "1",
"default": "deny",
"tools": {
"kobold_web_search": {}
}
}kobold_web_search is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search the web via DuckDuckGo. It is categorised as a Read tool in the Kobold MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kobold MCP Server MCP server in PolicyLayer and add a rule for kobold_web_search: 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 Kobold MCP Server. Nothing to install.
kobold_web_search is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the kobold_web_search 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.
Set action: deny in the PolicyLayer policy for kobold_web_search. 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.
kobold_web_search is provided by the Kobold MCP Server MCP server (phialsbasement/koboldcpp-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kobold MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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20 Kobold MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.