Get how search frequency changes over time for a keyword (daily, weekly, or monthly).
AI agents call wordstat_get_dynamics to retrieve information from Yandex Searchapi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries aggregated search statistics and returns time-series data about keyword popularity trends. It is a read-only operation with no side effects, no data modification, no code execution, and no financial impact. The blast radius of misuse is minimal—an attacker could only retrieve historical search frequency information, which is typically non-sensitive aggregate data.
From the tool's definition Tool name 'wordstat_get_dynamics' and description 'Get how search frequency changes over time for a keyword' indicate a retrieval operation. The action is to fetch historical search trend data, with no modification, deletion, or execution of code.
Attacks that exploit this kind of access
Get how search frequency changes over time for a keyword (daily, weekly, or monthly). It is categorised as a Read tool in the Yandex Searchapi MCP Server, which means it retrieves data without modifying state.
Register the Yandex Searchapi MCP server in PolicyLayer and add a rule for wordstat_get_dynamics: 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 Yandex Searchapi. Nothing to install.
wordstat_get_dynamics 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 wordstat_get_dynamics 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 wordstat_get_dynamics. 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.
wordstat_get_dynamics is provided by the Yandex Searchapi MCP server (shufl9dka/yandex-searchapi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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