Bir fonun standart dönemsel getirilerini (1a, 3a, 6a, yb, 1y, 3y, 5y) döner.
AI agents call donemsel_getiri_ozeti to retrieve information from Fonlar without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical performance data about investment funds. It performs a read-only query against the TEFAS (Turkish investment fund) database, returning calculated metrics without creating, modifying, deleting, or executing any operations. The low severity reflects minimal risk even if misused by an AI agent — it can only expose publicly available fund performance information.
From the tool's definition Tool description states it 'returns' (döner) a fund's standard periodic returns for specified periods (1a, 3a, 6a, yb, 1y, 3y, 5y). The verb 'returns' indicates data retrieval with no modification.
Documented attack patterns abuse exactly the kind of access donemsel_getiri_ozeti gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Fonlar, and nothing reaches the server without passing your rules. This is the rule we recommend for donemsel_getiri_ozeti:
{
"version": "1",
"default": "deny",
"tools": {
"donemsel_getiri_ozeti": {}
}
}donemsel_getiri_ozeti is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Bir fonun standart dönemsel getirilerini (1a, 3a, 6a, yb, 1y, 3y, 5y) döner. It is categorised as a Read tool in the Fonlar MCP Server, which means it retrieves data without modifying state.
Register the Fonlar MCP server in PolicyLayer and add a rule for donemsel_getiri_ozeti: 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 Fonlar. Nothing to install.
donemsel_getiri_ozeti 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 donemsel_getiri_ozeti 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 donemsel_getiri_ozeti. 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.
donemsel_getiri_ozeti is provided by the Fonlar MCP server (maku-cpu/fonlar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Fonlar, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
6 Fonlar tools catalogued and risk-classified — across an index of 43,000+ MCP servers.