memory_region_enumerate
Enumerate memory regions in a target process. Cross-platform: Windows (VirtualQueryEx), macOS (mach_vm_region), Linux (/proc/pid/maps). Returns base address, size, protection (r/w/x/rw/rx/rwx), state, type (image/mapped/private), and module name (if module-backed). Emulator mode (mode=
This record as markdown: /tools/io-github-vmoranv-jshookmcp/memory-region-enumerate.md
What memory_region_enumerate does on Jshookmcp
AI agents call memory_region_enumerate to retrieve information from Jshookmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why memory_region_enumerate is rated Low
Reads process memory layout; enables reconnaissance of running processes, high privacy risk.
From the tool's definition Enumerate memory regions in a target process
Attacks that exploit this kind of access
The rule that runs memory_region_enumerate safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For memory_region_enumerate, this is the rule to start with:
memory_region_enumerate 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 Jshookmcp, apply this rule, and every memory_region_enumerate call is checked against it from then on.
Questions about memory_region_enumerate
Enumerate memory regions in a target process. Cross-platform: Windows (VirtualQueryEx), macOS (mach_vm_region), Linux (/proc/pid/maps). Returns base address, size, protection (r/w/x/rw/rx/rwx), state, type (image/mapped/private), and module name (if module-backed). Emulator mode (mode=. It is categorised as a Read tool in the Jshookmcp MCP Server, which means it retrieves data without modifying state.
Register the Jshook MCP server in PolicyLayer and add a rule for memory_region_enumerate: 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 Jshookmcp. Nothing to install.
memory_region_enumerate 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 memory_region_enumerate 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 memory_region_enumerate. 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.
memory_region_enumerate is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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