get

Get value by key from Redis

SERVERRedis SOURCE@@modelcontextprotocol/server-redis

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/redis/get.md

WHAT IT DOES

What get does on Redis

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

RISK

Why get is rated Low

This tool retrieves data from Redis by key lookup. It is a read-only operation with no side effects, no data modification, and no execution of arbitrary commands. The low severity reflects that while information disclosure could occur if sensitive data is cached, the tool itself performs only safe retrieval. Confidence is high due to clear naming and description.

From the tool's definition Tool name 'get' and description 'Get value by key from Redis' explicitly indicate retrieval without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get safely

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

get Allowed

get 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": {
    "get": {}
  }
}

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

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

FAQ

Questions about get

What does the get tool do? +

Get value by key from Redis. It is categorised as a Read tool in the Redis MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get? +

Register the Redis 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 Redis. Nothing to install.

What risk level is get? +

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

Can I rate-limit get? +

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.

How do I block get completely? +

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.

What MCP server provides get? +

get is provided by the Redis MCP server (@@modelcontextprotocol/server-redis). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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