This record as markdown: /tools/ahmeth4n-renef-mcp/renef-module-symbols.md
What renef_module_symbols does on Renef
AI agents call renef_module_symbols to retrieve information from Renef without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why renef_module_symbols is rated Low
Symbol enumeration is a read operation—it queries and retrieves symbol metadata from Android modules without modifying state or executing code. However, high severity is warranted because symbol information enables targeted exploitation, and the broader server context involves reverse engineering and hooking that could facilitate harmful activities. The empty description prevents higher confidence.
From the tool's definition Tool name 'renef_module_symbols' combined with server context of 'dynamic instrumentation and reverse engineering capabilities' and 'native hooking' suggests this retrieves symbol information from loaded modules.
Attacks that exploit this kind of access
The rule that runs renef_module_symbols safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Renef, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For renef_module_symbols, this is the rule to start with:
renef_module_symbols 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 Renef, apply this rule, and every renef_module_symbols call is checked against it from then on.
Questions about renef_module_symbols
renef_module_symbols is a read tool on the Renef MCP server. It is categorised as a Read tool in the Renef MCP Server, which means it retrieves data without modifying state.
Register the Renef MCP server in PolicyLayer and add a rule for renef_module_symbols: 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 Renef. Nothing to install.
renef_module_symbols 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 renef_module_symbols 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 renef_module_symbols. 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.
renef_module_symbols is provided by the Renef MCP server (ahmeth4n/renef-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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