Get time to live of a key
AI agents call redis_ttl 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 information (TTL value) from Redis without side effects. It is a read-only query operation that does not create, modify, delete, or execute arbitrary code. The blast radius of misuse is minimal—an agent could only learn about key expiration times, which poses no security or operational risk.
From the tool's definition Tool name 'redis_ttl' and description 'Get time to live of a key' indicate a retrieval operation that queries metadata about an existing Redis key without modifying or deleting data.
Attacks that exploit this kind of access
Get time to live of a key. 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_ttl: 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_ttl 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_ttl 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_ttl. 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_ttl is provided by the Mcp Database MCP server (nam088/mcp-database-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
redis_ttl is one line of Mcp Database's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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