list_groups
AI agents call list_groups to retrieve information from Reka Vision MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or enumerates groups without modifying state. It has no side effects and fits the Read category pattern of queries that return existing data. Even if misused by an agent, listing groups cannot cause data loss, financial harm, or execution of external operations. Severity is low due to minimal blast radius—at worst, an agent might iterate through groups unnecessarily.
From the tool's definition Tool name 'list_groups' combined with sibling tools like 'create_group', 'delete_group', and 'get_video' indicates this retrieves a list of video groups.
Attacks that exploit this kind of access
list_groups. It is categorised as a Read tool in the Reka Vision MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Reka Vision MCP Server MCP server in PolicyLayer and add a rule for list_groups: 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 Reka Vision MCP Server. Nothing to install.
list_groups 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 list_groups 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 list_groups. 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.
list_groups is provided by the Reka Vision MCP Server MCP server (reka-ai/reka-mcp). 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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