List contacts in SendGrid Marketing Campaigns.
AI agents call sendgrid_list_contacts to retrieve information from Integrations MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves contact data from SendGrid without creating, modifying, deleting, or executing any operations. It is a straightforward read operation that only queries existing data. The blast radius is low because retrieval of contact lists, while potentially containing personal information, does not alter system state or expose the AI to high-risk operations.
From the tool's definition Tool name includes 'list' and description states 'List contacts in SendGrid Marketing Campaigns' — a query operation with no modification or side effects.
Attacks that exploit this kind of access
List contacts in SendGrid Marketing Campaigns. It is categorised as a Read tool in the Integrations MCP MCP Server, which means it retrieves data without modifying state.
Register the Integrations MCP server in PolicyLayer and add a rule for sendgrid_list_contacts: 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 Integrations MCP. Nothing to install.
sendgrid_list_contacts 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 sendgrid_list_contacts 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 sendgrid_list_contacts. 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.
sendgrid_list_contacts is provided by the Integrations MCP server (shriram-vasudevan/integrations-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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