AI agents call tiers_read 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.
The 'read' suffix and naming pattern consistent with other retrieval tools on this server (members_read, members_browse, newsletters_browse) strongly suggest this tool queries tier data without side effects.
From the tool's definition Tool name 'tiers_read' and server context indicating it retrieves tier information from Ghost CMS; 'read' suffix indicates data retrieval without modification. Description is empty, lowering confidence slightly.
Documented attack patterns abuse exactly the kind of access tiers_read 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 tiers_read:
{
"version": "1",
"default": "deny",
"tools": {
"tiers_read": {}
}
}tiers_read is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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tiers_read. 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 tiers_read: 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.
tiers_read 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 tiers_read 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 tiers_read. 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.
tiers_read is provided by the Ghost MCP Server MCP server (mfydev/ghost-mcp). 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.
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42 Ghost MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.