Retrieves a list of tiers (membership levels) from Ghost CMS with optional filtering by type (free/paid).
AI agents call ghost_get_tiers to retrieve information from Ghost MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns data about membership tiers without creating, modifying, deleting, or executing any operations. The optional filtering parameter does not change this classification—it remains a pure data retrieval operation. Read operations have minimal blast radius since they cannot alter system state.
From the tool's definition Tool description states it 'Retrieves a list of tiers (membership levels) from Ghost CMS with optional filtering by type (free/paid)'. The verb 'Retrieves' and the lack of any modification, deletion, or execution language indicates a read-only query operation.
Documented attack patterns abuse exactly the kind of access ghost_get_tiers gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ghost MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ghost_get_tiers:
{
"version": "1",
"default": "deny",
"tools": {
"ghost_get_tiers": {}
}
}ghost_get_tiers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieves a list of tiers (membership levels) from Ghost CMS with optional filtering by type (free/paid). It is categorised as a Read tool in the Ghost MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Ghost MCP Server MCP server in PolicyLayer and add a rule for ghost_get_tiers: 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 Ghost MCP Server. Nothing to install.
ghost_get_tiers 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 ghost_get_tiers 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 ghost_get_tiers. 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.
ghost_get_tiers is provided by the Ghost MCP Server MCP server (jgardner04/ghost-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ghost MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
39 Ghost MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.