Get all fields and values from a hash
AI agents call redis_hgetall 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.
HGETALL is a Redis command that queries and returns data without side effects. It retrieves existing hash fields and their values but does not create, modify, delete, or execute operations. The lack of write or execute semantics, combined with the server's stated support for 'configurable read-only security,' confirms this is a Read operation with minimal blast radius.
From the tool's definition Tool name 'redis_hgetall' and description 'Get all fields and values from a hash' indicate a read-only operation that retrieves data from a Redis hash without modification.
Attacks that exploit this kind of access
Get all fields and values from a hash. 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_hgetall: 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_hgetall 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_hgetall 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_hgetall. 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_hgetall 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_hgetall 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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