This record as markdown: /tools/seac-25-kali-security-mcp/grpc-reflect.md
What grpc_reflect does on Kali Security MCP
AI agents call grpc_reflect to retrieve information from Kali Security MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why grpc_reflect is rated Low
gRPC reflection is a reconnaissance capability that queries and retrieves service definitions, method signatures, and message types from gRPC endpoints. While it performs no modifications or destructive operations, it enables information gathering about target services which could inform further attacks.
From the tool's definition Tool name 'grpc_reflect' and description 'gRPC服务反射 - 获取服务定义' (gRPC service reflection - get service definition) indicate it retrieves service metadata and definitions from gRPC services without modifying them.
Attacks that exploit this kind of access
The rule that runs grpc_reflect safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Kali Security MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For grpc_reflect, this is the rule to start with:
grpc_reflect is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Kali Security MCP, apply this rule, and every grpc_reflect call is checked against it from then on.
Questions about grpc_reflect
gRPC服务反射 - 获取服务定义. It is categorised as a Read tool in the Kali Security MCP MCP Server, which means it retrieves data without modifying state.
Register the Kali Security MCP server in PolicyLayer and add a rule for grpc_reflect: 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 Kali Security MCP. Nothing to install.
grpc_reflect 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 grpc_reflect 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 grpc_reflect. 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.
grpc_reflect is provided by the Kali Security MCP server (seac-25/kali-security-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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