Deleted vacancy list
AI agents call get-hidden-vacancies to retrieve information from HeadHunter API MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about hidden or deleted vacancies from the HeadHunter platform. It performs a read-only query operation with no side effects—it does not create, modify, or delete data. While 'deleted' in the description might suggest destructive capability, the context shows this is a GET operation that merely lists vacancies marked as hidden/deleted, not an operation that performs deletion.
From the tool's definition Tool name 'get-hidden-vacancies' and description 'Deleted vacancy list' indicate retrieval of vacancy data with no modification or destructive action.
Attacks that exploit this kind of access
Deleted vacancy list. It is categorised as a Read tool in the HeadHunter API MCP Server MCP Server, which means it retrieves data without modifying state.
Register the HeadHunter API MCP Server MCP server in PolicyLayer and add a rule for get-hidden-vacancies: 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 HeadHunter API MCP Server. Nothing to install.
get-hidden-vacancies 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-hidden-vacancies 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-hidden-vacancies. 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-hidden-vacancies is provided by the HeadHunter API MCP Server MCP server (sargonpiraev/hh-mcp-server). 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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