search

A read tool on the 999md MCP server.

SERVER999md SOURCEilodezis/999md-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/999md-mcp/search.md

WHAT IT DOES

What search does on 999md

AI agents call search to retrieve information from 999md without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why search is rated Low

This tool queries multiple data sources and retrieves search results. It performs no data modifications, deletions, financial transactions, or code execution. The low severity reflects that misuse causes only information exposure, not system compromise or destructive outcomes.

From the tool's definition Tool named 'search' on a server described as 'Controllable multi-source search MCP server' that searches Reddit, X, YouTube, HN, GitHub, arXiv, Polymarket, and other sources.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs search safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 999md, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For search, this is the rule to start with:

search Allowed

search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 999md, apply this rule, and every search call is checked against it from then on.

FAQ

Questions about search

What does the search tool do? +

search is a read tool on the 999md MCP server. It is categorised as a Read tool in the 999md MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search? +

Register the 999md MCP server in PolicyLayer and add a rule for 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 999md. Nothing to install.

What risk level is search? +

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

Can I rate-limit search? +

Yes. Add a rate_limit block to the 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.

How do I block search completely? +

Set action: deny in the PolicyLayer policy for 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.

What MCP server provides search? +

search is provided by the 999md MCP server (ilodezis/999md-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on 999md, and thousands of servers like it.

This server

All 8 999md tools →

Across the catalogue

binary_search on 010 Editor →evaluate_search_quality on ACE-MCP →search_torrents on M-Team MCP Server →aiva_search_customers on AIVA MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →