read_messages

Read recent messages in an inbox.

SERVERPypi:deadsimple Email SOURCEpypi:deadsimple-email

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/deadsimple-email/read-messages.md

WHAT IT DOES

What read_messages does on Pypi:deadsimple Email

AI agents call read_messages to retrieve information from Pypi:deadsimple Email without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why read_messages is rated Low

The tool retrieves email messages from an inbox without creating, modifying, or deleting any data. It is analogous to a simple fetch or list operation. The low severity reflects minimal blast radius—reading messages does not expose critical infrastructure or enable further attacks without additional tools, though it does access potentially sensitive email content.

From the tool's definition Tool name is 'read_messages' and description states it will 'Read recent messages in an inbox.' This is a pure query/retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs read_messages safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Pypi:deadsimple Email, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For read_messages, this is the rule to start with:

read_messages Allowed

read_messages is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "read_messages": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Pypi:deadsimple Email, apply this rule, and every read_messages call is checked against it from then on.

FAQ

Questions about read_messages

What does the read_messages tool do? +

Read recent messages in an inbox. It is categorised as a Read tool in the Pypi:deadsimple Email MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on read_messages? +

Register the Pypi:deadsimple Email MCP server in PolicyLayer and add a rule for read_messages: 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 Pypi:deadsimple Email. Nothing to install.

What risk level is read_messages? +

read_messages is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit read_messages? +

Yes. Add a rate_limit block to the read_messages 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.

How do I block read_messages completely? +

Set action: deny in the PolicyLayer policy for read_messages. 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.

What MCP server provides read_messages? +

read_messages is provided by the Pypi:deadsimple Email MCP server (pypi:deadsimple-email). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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