列出当前栈帧的局部变量及其值。
AI agents call gdb_list_locals to retrieve information from GDB 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 debugger state (local variable names and values) without modifying program execution, memory, or data. It is a passive inspection utility with no side effects. The risk is low because misuse by an AI agent would at worst reveal sensitive program data, but cannot corrupt state, execute code, or cause harm beyond information disclosure.
From the tool's definition Tool description states it lists local variables and their values from the current stack frame. The verb 列出 (list) and the operational scope (reading variable state) indicate data retrieval with no modification or execution.
Attacks that exploit this kind of access
列出当前栈帧的局部变量及其值。. It is categorised as a Read tool in the GDB MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GDB MCP Server MCP server in PolicyLayer and add a rule for gdb_list_locals: 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 GDB MCP Server. Nothing to install.
gdb_list_locals 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 gdb_list_locals 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 gdb_list_locals. 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.
gdb_list_locals is provided by the GDB MCP Server MCP server (zjm1060/gdb-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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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