Browse marketplace identity templates with optional category filter
AI agents call list_marketplace_templates to retrieve information from PostIdentity MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query/list operation to retrieve marketplace templates. The verb 'browse' and the presence of an optional filter parameter indicate data retrieval with no side effects. There is no creation, modification, deletion, code execution, or financial transaction involved. This is a straightforward Read category tool with low risk.
From the tool's definition Tool name 'list_marketplace_templates' and description 'Browse marketplace identity templates with optional category filter' indicate a read-only operation that retrieves and displays available templates without modifying data.
Attacks that exploit this kind of access
Browse marketplace identity templates with optional category filter. It is categorised as a Read tool in the PostIdentity MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PostIdentity MCP Server MCP server in PolicyLayer and add a rule for list_marketplace_templates: 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 PostIdentity MCP Server. Nothing to install.
list_marketplace_templates 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 list_marketplace_templates 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 list_marketplace_templates. 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.
list_marketplace_templates is provided by the PostIdentity MCP Server MCP server (postidentity/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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