reapply_user_group_permissions
AI agents use reapply_user_group_permissions to create or update resources in GAM MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GAM MCP Server environment.
The verb 'reapply' indicates an action that changes or resets permissions, which is reversible (Write category). The lack of description reduces confidence slightly, but the administrative context and naming pattern strongly suggest this writes/modifies permission configurations rather than reading them.
From the tool's definition Tool name 'reapply_user_group_permissions' indicates modification of permission settings. Description is empty but sibling tools are all audit/read operations; this tool's name suggests it modifies permissions state.
Attacks that exploit this kind of access
reapply_user_group_permissions. It is categorised as a Write tool in the GAM MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GAM MCP Server MCP server in PolicyLayer and add a rule for reapply_user_group_permissions: 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 GAM MCP Server. Nothing to install.
reapply_user_group_permissions 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 reapply_user_group_permissions 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 reapply_user_group_permissions. 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.
reapply_user_group_permissions is provided by the GAM MCP Server MCP server (ktibbs9417/gamcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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