AI agents call karea_list_subtasks to retrieve information from Karea without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about subtasks with no side effects. It accepts identifiers (visual ID, name, or UUID) to retrieve data, which is a classic Read operation. The low severity reflects minimal blast radius—an AI agent listing subtasks cannot cause harm beyond information disclosure.
From the tool's definition Tool name contains 'list' and description states 'List subtasks' with no mention of modification, deletion, or execution. It retrieves data about subtasks of a parent task.
Attacks that exploit this kind of access
List subtasks of a parent task. Accepts the parent by visual ID, name, or UUID. It is categorised as a Read tool in the Karea MCP Server, which means it retrieves data without modifying state.
Register the Karea MCP server in PolicyLayer and add a rule for karea_list_subtasks: 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 Karea. Nothing to install.
karea_list_subtasks 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 karea_list_subtasks 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 karea_list_subtasks. 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.
karea_list_subtasks is provided by the Karea MCP server (starecz/karea-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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