Get CPU register values.
AI agents call gdb_get_registers to retrieve information from Gdb Multiarch without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Reading CPU register values during debugging has no side effects and does not modify execution state, memory, or data. While the tool operates within a debugging context where the debugged process may be paused, the act of retrieving register values is inherently non-destructive. Misuse would have minimal blast radius—an agent could inspect registers but cannot alter program state or cause permanent damage.
From the tool's definition Tool name is 'gdb_get_registers' and description states it 'Get CPU register values.' This is a read-only operation that retrieves debugging state without modifying the target process.
Attacks that exploit this kind of access
Get CPU register values. It is categorised as a Read tool in the Gdb Multiarch MCP Server, which means it retrieves data without modifying state.
Register the Gdb Multiarch MCP server in PolicyLayer and add a rule for gdb_get_registers: 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 Multiarch. Nothing to install.
gdb_get_registers 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_get_registers 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_get_registers. 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_get_registers is provided by the Gdb Multiarch MCP server (sbergeron42/gdb-multiarch-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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