Publishing job vacancies
AI agents use publish-vacancy to create or update resources in HeadHunter API MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your HeadHunter API MCP Server environment.
Publishing a vacancy is a reversible write operation that creates visibility for a job posting but does not permanently delete data or execute arbitrary code. An AI agent misusing this tool could flood the platform with unwanted job postings, waste resources, or create reputational harm to the employer account, warranting medium severity.
From the tool's definition Tool name 'publish-vacancy' and description 'Publishing job vacancies' indicate the tool creates or modifies the state of a vacancy by making it publicly visible on the HeadHunter job platform.
Attacks that exploit this kind of access
Publishing job vacancies. It is categorised as a Write tool in the HeadHunter API MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the HeadHunter API MCP Server MCP server in PolicyLayer and add a rule for publish-vacancy: 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.
publish-vacancy is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the publish-vacancy 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 publish-vacancy. 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.
publish-vacancy 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.
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