등록된 모든 지표를 한 번에 fetched_at 타임스탬프와 함께 반환.
AI agents call get_all_indices to retrieve information from Yummy Research without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries market sentiment and valuation indices (CNN Fear & Greed, KOSPI Buffett, etc.) without creating, modifying, or deleting any data. It is a pure read operation that fetches published market statistics with a timestamp. No destructive, financial transaction, or code execution capabilities are implied. Severity is low because misuse would only expose publicly available market data.
From the tool's definition Tool name 'get_all_indices' and description 'returns all registered indices at once with fetched_at timestamp' indicate data retrieval with no modification or side effects. The description translates to fetching/returning market statistics indices.
Attacks that exploit this kind of access
등록된 모든 지표를 한 번에 fetched_at 타임스탬프와 함께 반환. It is categorised as a Read tool in the Yummy Research MCP Server, which means it retrieves data without modifying state.
Register the Yummy Research MCP server in PolicyLayer and add a rule for get_all_indices: 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 Yummy Research. Nothing to install.
get_all_indices 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 get_all_indices 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 get_all_indices. 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.
get_all_indices is provided by the Yummy Research MCP server (yeom/yummy-research-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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