mysql_grants_for_entities
Show grants assigned to roles and users.
This record as markdown: /tools/mukul975-mysql-mcp-server/mysql-grants-for-entities.md
What mysql_grants_for_entities does on Mysql
AI agents call mysql_grants_for_entities to retrieve information from Mysql without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why mysql_grants_for_entities is rated Low
This tool retrieves and displays existing grant information for database users and roles. It performs no modifications, deletions, or code execution. The blast radius is minimal — an agent can only learn about existing permissions, not change them. The server's stated purpose as 'read-only queries' supports this classification.
From the tool's definition Tool name contains 'show' semantic and description states 'Show grants assigned to roles and users' — a pure query/retrieval operation with no mutation or execution of commands.
Attacks that exploit this kind of access
The rule that runs mysql_grants_for_entities safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mysql, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mysql_grants_for_entities, this is the rule to start with:
mysql_grants_for_entities is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Mysql, apply this rule, and every mysql_grants_for_entities call is checked against it from then on.
Questions about mysql_grants_for_entities
Show grants assigned to roles and users. It is categorised as a Read tool in the Mysql MCP Server, which means it retrieves data without modifying state.
Register the Mysql MCP server in PolicyLayer and add a rule for mysql_grants_for_entities: 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 Mysql. Nothing to install.
mysql_grants_for_entities 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 mysql_grants_for_entities 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 mysql_grants_for_entities. 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.
mysql_grants_for_entities is provided by the Mysql MCP server (mukul975/mysql-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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