使用 DoWhy GCM 获取节点的有序前驱
AI agents call get_ordered_predecessors_gcm to retrieve information from DoWhy MCP v2 0 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries causal graph structure to retrieve ordered predecessor nodes. It performs graph introspection—a fundamental Read operation that retrieves existing model information without modifying, executing external code, deleting data, or committing financial resources. The minimal blast radius from misuse and purely informational nature justify 'low' severity.
From the tool's definition Tool name 'get_ordered_predecessors_gcm' and description indicate retrieval of predecessors of a node in a causal graph model. The verb 'get' and the read-only nature of querying graph structure confirm this is a data retrieval operation with no side effects.
Attacks that exploit this kind of access
使用 DoWhy GCM 获取节点的有序前驱. It is categorised as a Read tool in the DoWhy MCP v2 0 MCP Server, which means it retrieves data without modifying state.
Register the DoWhy MCP v2 0 MCP server in PolicyLayer and add a rule for get_ordered_predecessors_gcm: 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 DoWhy MCP v2 0. Nothing to install.
get_ordered_predecessors_gcm 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_ordered_predecessors_gcm 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_ordered_predecessors_gcm. 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_ordered_predecessors_gcm is provided by the DoWhy MCP v2 0 MCP server (lesong36/dowhy_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.
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