get a key-value pair from the cache
AI agents call get to retrieve information from Momento MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get' operation queries and retrieves cached data without modifying, executing, or deleting anything. It is a standard read operation with minimal blast radius if misused by an AI agent—at worst, it exposes cached data the agent shouldn't access, but causes no state changes or irreversible effects.
From the tool's definition Tool name 'get' and description 'get a key-value pair from the cache' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
get a key-value pair from the cache. It is categorised as a Read tool in the Momento MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Momento MCP Server MCP server in PolicyLayer and add a rule for get: 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 Momento MCP Server. Nothing to install.
get 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 get 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 get. 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.
get is provided by the Momento MCP Server MCP server (momentohq/mcp-momento). 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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