Get the callers of the given method in the APK file, the passed in method_signature needs to be a fully-qualified signature
AI agents call get_method_callers to retrieve information from APK Security Guard MCP Suite without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs static analysis on an APK to retrieve caller information for a specified method. It is purely informational—querying the control flow graph or call graph without modifying the APK, executing code, or triggering any operations. The limited attack surface is further reduced by the fact that it operates on already-provided method signatures within an APK analysis context.
From the tool's definition The tool description states it 'Get the callers of the given method' which is a query/retrieval operation.
Attacks that exploit this kind of access
Get the callers of the given method in the APK file, the passed in method_signature needs to be a fully-qualified signature. It is categorised as a Read tool in the APK Security Guard MCP Suite MCP Server, which means it retrieves data without modifying state.
Register the APK Security Guard MCP Suite MCP server in PolicyLayer and add a rule for get_method_callers: 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 APK Security Guard MCP Suite. Nothing to install.
get_method_callers 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_method_callers 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_method_callers. 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_method_callers is provided by the APK Security Guard MCP Suite MCP server (zmbcen/apk-security-guard-mcp-suite). 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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