Get a Redis string value. Args: key (str): The key to retrieve. Returns: str, bytes: The stored value or an error message.
AI agents call get to retrieve information from Redis MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data from Redis without modifying, deleting, or executing any operations. It is a straightforward read operation that queries existing data. The low severity reflects minimal blast radius—retrieving a value cannot cause data loss or unintended modifications, though sensitivity depends on what data is stored.
From the tool's definition Tool name is 'get' and description states 'Get a Redis string value' with argument 'key (str): The key to retrieve.' and return value 'str, bytes: The stored value or an error message.' This is a pure retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Redis MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get:
{
"version": "1",
"default": "deny",
"tools": {
"get": {}
}
}get is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get a Redis string value. Args: key (str): The key to retrieve. Returns: str, bytes: The stored value or an error message. It is categorised as a Read tool in the Redis MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Redis 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 Redis 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 Redis MCP Server MCP server (redis/mcp-redis). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 53 Redis MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
53 Redis MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.