list

List Redis keys matching a pattern

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/list.md

WHAT IT DOES

What list does on Redis

AI agents call list 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 list is rated Low

The 'list' operation queries and returns Redis keys matching a pattern. This is a read-only operation with no side effects—it does not create, modify, delete, execute code, or move money. The presence of sibling tools (delete, get, set) confirms this server offers multiple operation types, but this tool specifically performs data retrieval only.

From the tool's definition Tool name 'list' with description 'List Redis keys matching a pattern' indicates a query operation that retrieves information about keys without modifying data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list 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 list, this is the rule to start with:

list Allowed

list 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": {
    "list": {}
  }
}

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 list call is checked against it from then on.

FAQ

Questions about list

What does the list tool do? +

List Redis keys matching a pattern. 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 list? +

Register the Redis MCP server in PolicyLayer and add a rule for list: 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 list? +

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

Can I rate-limit list? +

Yes. Add a rate_limit block to the list 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 list completely? +

Set action: deny in the PolicyLayer policy for list. 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 list? +

list 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.

KEEP EXPLORING

More on Redis, and thousands of servers like it.

This server

All 4 Redis tools →

Across the catalogue

aiva_list_affiliates on AIVA MCP Server →list_agents on 0rca Dojo MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →