获取数据库统计信息。包括各表行数、数据库文件大小、WAL 大小、最后归档时间等。仅 admin 可调用。
AI agents call get_db_stats 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 queries and returns database metadata and statistics without modifying, executing code against external systems, deleting data, or moving money. It is a straightforward informational read operation. The low severity reflects minimal blast radius—misuse would only expose internal database metrics to an unauthorized agent, which is a confidentiality concern rather than integrity or availability risk.
From the tool's definition Tool name 'get_db_stats' and description state it retrieves database statistics including row counts, file sizes, and archive times. The verb '获取' (get/retrieve) indicates a read-only operation.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
获取数据库统计信息。包括各表行数、数据库文件大小、WAL 大小、最后归档时间等。仅 admin 可调用。. 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 get_db_stats: 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.
get_db_stats 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 get_db_stats 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 get_db_stats. 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.
get_db_stats 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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