自动按键名前缀聚合当前 Redis 数据库的内存占用
AI agents call redis_auto_prefix_memory_usage to retrieve information from Db without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and aggregates memory usage statistics from Redis by key prefix. It retrieves/queries data without modifying, deleting, or executing any commands that alter state. It's a read-only diagnostic/analytics operation.
From the tool's definition 自动按键名前缀聚合当前 Redis 数据库的内存占用 (automatically aggregate memory usage of the current Redis database by key name prefix)
Documented attack patterns abuse exactly the kind of access redis_auto_prefix_memory_usage gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Db, and nothing reaches the server without passing your rules. This is the rule we recommend for redis_auto_prefix_memory_usage:
{
"version": "1",
"default": "deny",
"tools": {
"redis_auto_prefix_memory_usage": {}
}
}redis_auto_prefix_memory_usage is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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自动按键名前缀聚合当前 Redis 数据库的内存占用. It is categorised as a Read tool in the Db MCP Server, which means it retrieves data without modifying state.
Register the Db MCP server in PolicyLayer and add a rule for redis_auto_prefix_memory_usage: 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 Db. Nothing to install.
redis_auto_prefix_memory_usage 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_auto_prefix_memory_usage 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_auto_prefix_memory_usage. 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_auto_prefix_memory_usage is provided by the Db MCP server (wannanbigpig/db-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Db, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
34 Db tools catalogued and risk-classified — across an index of 43,000+ MCP servers.