AI agents call describeDocProcessJob to retrieve information from Tencent Cloud COS MCP Server 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 the status or results of a document processing job using a job ID. It performs a read-only operation that retrieves data without creating, modifying, deleting, or executing any operations.
From the tool's definition Tool name 'describeDocProcessJob' and description '根据 jobid 查询指定的文档转码任务结果' (query document transcoding job results by jobid) indicate retrieval of existing job status/results with no modification or side effects.
Documented attack patterns abuse exactly the kind of access describeDocProcessJob gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Tencent Cloud COS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for describeDocProcessJob:
{
"version": "1",
"default": "deny",
"tools": {
"describeDocProcessJob": {}
}
}describeDocProcessJob is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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根据 jobid 查询指定的文档转码任务结果. It is categorised as a Read tool in the Tencent Cloud COS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Tencent Cloud COS MCP Server MCP server in PolicyLayer and add a rule for describeDocProcessJob: 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 Tencent Cloud COS MCP Server. Nothing to install.
describeDocProcessJob 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 describeDocProcessJob 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 describeDocProcessJob. 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.
describeDocProcessJob is provided by the Tencent Cloud COS MCP Server MCP server (tencent/cos-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 Tencent Cloud COS MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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21 Tencent Cloud COS MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.