查询某资源是否已被当前 Agent 处理过。在处理 WorkBuddy 发来的文件或信号前，先调用此工具检查，已处理的直接跳过。
AI agents call check_consumed to retrieve information from Agent-Comm-Hub without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query to determine resource consumption state. It retrieves information to inform downstream logic but does not modify, delete, or execute operations. The description emphasizes it is called prior to processing to skip already-handled items, confirming its role as a read-only check. No data is created, modified, or deleted by this tool itself.
From the tool's definition Tool name 'check_consumed' and description indicate it 'queries whether a resource has been processed by the current Agent' — a lookup/state-check operation with no side effects.
Attacks that exploit this kind of access
查询某资源是否已被当前 Agent 处理过。在处理 WorkBuddy 发来的文件或信号前，先调用此工具检查，已处理的直接跳过。. It is categorised as a Read tool in the Agent-Comm-Hub MCP Server, which means it retrieves data without modifying state.
Register the Agent-Comm-Hub MCP server in PolicyLayer and add a rule for check_consumed: 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 Agent-Comm-Hub. Nothing to install.
check_consumed 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 check_consumed 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 check_consumed. 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.
check_consumed is provided by the Agent-Comm-Hub MCP server (liuboacean/agent-comm-hub). 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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