List call communication history for a lead.
AI agents call listCallHistory to retrieve information from Lofty MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns existing call history data for a lead without creating, modifying, deleting, or executing any operations. It is a straightforward read operation consistent with the CRM's data retrieval capabilities. The blast radius of misuse is low since it only exposes historical communication records.
From the tool's definition Tool name 'listCallHistory' and description 'List call communication history for a lead' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List call communication history for a lead. It is categorised as a Read tool in the Lofty MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Lofty MCP Server MCP server in PolicyLayer and add a rule for listCallHistory: 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 Lofty MCP Server. Nothing to install.
listCallHistory 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 listCallHistory 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 listCallHistory. 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.
listCallHistory is provided by the Lofty MCP Server MCP server (nerdsnipe-inc/lofty-mcp). 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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