Add two numbers together.
AI agents call sum_numbers to retrieve information from Container 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 simple mathematical calculation (addition) and returns a result. It has no side effects, does not modify any data, does not execute code in a dangerous sense, and cannot cause harm. It falls closest to Read as a pure query/computation operation.
From the tool's definition 'Add two numbers together' — pure arithmetic computation with no side effects, no data modification, no external calls.
Attacks that exploit this kind of access
Add two numbers together. It is categorised as a Read tool in the Container MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Container MCP Server MCP server in PolicyLayer and add a rule for sum_numbers: 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 Container MCP Server. Nothing to install.
sum_numbers 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 sum_numbers 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 sum_numbers. 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.
sum_numbers is provided by the Container MCP Server MCP server (pgiles/my-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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