mysql_role_revoke
Revoke a role from a user, or privileges from a role.
This record as markdown: /tools/io-github-neverinfamous-mysql-mcp/mysql-role-revoke.md
What mysql_role_revoke does on Mysql Mcp
AI agents use mysql_role_revoke to create or update resources in Mysql Mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mysql Mcp environment.
Why mysql_role_revoke is rated Medium
Revoking roles or privileges modifies access control configurations in MySQL. This is a reversible change (roles/privileges can be re-granted), placing it in Write rather than Destructive. However, the blast radius is high because misuse could remove critical access rights from users or roles, potentially breaking application functionality or locking out administrators.
From the tool's definition Revoke a role from a user, or privileges from a role
Attacks that exploit this kind of access
The rule that runs mysql_role_revoke safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mysql Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mysql_role_revoke, this is the rule to start with:
mysql_role_revoke stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Mysql Mcp, apply this rule, and every mysql_role_revoke call is checked against it from then on.
Questions about mysql_role_revoke
Revoke a role from a user, or privileges from a role. It is categorised as a Write tool in the Mysql Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mysql MCP server in PolicyLayer and add a rule for mysql_role_revoke: 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 Mcp. Nothing to install.
mysql_role_revoke is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the mysql_role_revoke 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_role_revoke. 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_role_revoke is provided by the Mysql MCP server (oci:docker.io/writenotenow/mysql-mcp:v1.0.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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