AI agents call sprout_list_users to retrieve information from Sprout without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves user metadata (id, name, email) from the Sprout Social API without creating, modifying, or deleting any data. It has no operational side effects and represents a simple query operation. The low severity reflects that exposure of a user listing endpoint poses minimal risk compared to tools that can modify social media content or delete data.
From the tool's definition Tool name 'list_users' and description 'List active users (id, name, email)' indicate data retrieval with no modification or side effects. The verb 'list' is a classic read operation that queries and returns existing user information.
Attacks that exploit this kind of access
List active users (id, name, email). It is categorised as a Read tool in the Sprout MCP Server, which means it retrieves data without modifying state.
Register the Sprout MCP server in PolicyLayer and add a rule for sprout_list_users: 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 Sprout. Nothing to install.
sprout_list_users 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 sprout_list_users 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 sprout_list_users. 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.
sprout_list_users is provided by the Sprout MCP server (@oliverames/sprout-mcp-server). 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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