List all sandbox projects and their inboxes in your Mailtrap account
AI agents call list-sandbox-projects to retrieve information from Mcp Mailtrap without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a straightforward read operation to enumerate sandbox projects and inboxes. It retrieves information without creating, modifying, deleting, or executing any actions. The blast radius of misuse is minimal—an AI agent could access account structure information but cannot alter data or trigger external operations. Classified as Read with low severity.
From the tool's definition Tool name 'list-sandbox-projects' and description 'List all sandbox projects and their inboxes in your Mailtrap account' indicates a retrieval operation that queries existing data without modification or side effects.
Attacks that exploit this kind of access
List all sandbox projects and their inboxes in your Mailtrap account. It is categorised as a Read tool in the Mcp Mailtrap MCP Server, which means it retrieves data without modifying state.
Register the Mcp Mailtrap MCP server in PolicyLayer and add a rule for list-sandbox-projects: 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 Mcp Mailtrap. Nothing to install.
list-sandbox-projects 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-sandbox-projects 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-sandbox-projects. 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-sandbox-projects is provided by the Mcp Mailtrap MCP server (mcp-mailtrap). 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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