List of favorited vacancies
AI agents call get-favorite-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 a list of vacancies that have been marked as favorites by the user. The 'get' verb and 'list' operation pattern are characteristic of Read operations. No side effects, data modifications, or external operations are performed. The blast radius of misuse is minimal—at worst, an AI agent views the user's favorite job listings, which poses no security or operational risk.
From the tool's definition Tool name 'get-favorite-vacancies' and description 'List of favorited vacancies' indicate a retrieval operation that queries stored data without modifying or executing any actions.
Attacks that exploit this kind of access
List of favorited vacancies. 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-favorite-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-favorite-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-favorite-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-favorite-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-favorite-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.
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