AI agents call companies_list to retrieve information from Sahmk without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool almost certainly retrieves a list of companies from the Saudi market database. It performs no modifications, deletions, or financial transactions. The pattern of sibling tools and server purpose (querying market data) confirms this is a read-only data retrieval operation with minimal risk. Low severity due to no side effects or destructive potential.
From the tool's definition Tool name 'companies_list' combined with sibling tools that are all read-only data retrieval operations (get_quote, get_company, get_financials, get_market_summary, etc.).
Documented attack patterns abuse exactly the kind of access companies_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sahmk, and nothing reaches the server without passing your rules. This is the rule we recommend for companies_list:
{
"version": "1",
"default": "deny",
"tools": {
"companies_list": {}
}
}companies_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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companies_list. It is categorised as a Read tool in the Sahmk MCP Server, which means it retrieves data without modifying state.
Register the Sahmk MCP server in PolicyLayer and add a rule for companies_list: 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 Sahmk. Nothing to install.
companies_list 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 companies_list 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 companies_list. 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.
companies_list is provided by the Sahmk MCP server (sahmk-sa/sahmk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sahmk, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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12 Sahmk tools catalogued and risk-classified — across an index of 43,000+ MCP servers.