Get value by key from Redis
AI agents call redis_get to retrieve information from Mcp Database 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 by key lookup without side effects. It is a pure read operation that queries existing data. The severity is low because misuse would only expose information already stored in Redis, not modify or delete data, and the blast radius of accidental information disclosure is typically limited to the sensitivity of cached data.
From the tool's definition Tool name 'redis_get' and description 'Get value by key from Redis' indicate a retrieval operation with no data modification.
Attacks that exploit this kind of access
Get value by key from Redis. It is categorised as a Read tool in the Mcp Database MCP Server, which means it retrieves data without modifying state.
Register the Mcp Database MCP server in PolicyLayer and add a rule for redis_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 Mcp Database. Nothing to install.
redis_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 redis_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 redis_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.
redis_get is provided by the Mcp Database MCP server (justpoypoy/mcp-database). 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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