nemu_regs_restore

SERVERJshookmcp SOURCE@jshookmcp/jshook

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-vmoranv-jshookmcp/nemu-regs-restore.md

WHAT IT DOES

What nemu_regs_restore does on Jshookmcp

AI agents use nemu_regs_restore to create or update resources in Jshookmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Jshookmcp environment.

RISK

Why nemu_regs_restore is rated Medium

Writes back saved register state; reversible but modifies execution context registers.

From the tool's definition Restore GPR registers from a previously-saved snapshot

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs nemu_regs_restore 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 nemu_regs_restore, this is the rule to start with:

nemu_regs_restore Rate-limited

nemu_regs_restore stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "nemu_regs_restore": {
      "limits": [
        {
          "counter": "nemu_regs_restore_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every nemu_regs_restore call is checked against it from then on.

FAQ

Questions about nemu_regs_restore

What does the nemu_regs_restore tool do? +

Restore GPR registers from a previously-saved snapshot (created by nemu_regs_save). Partially restores: only registers that were saved are written back. Use after an obfuscated function call to recover decode/context registers. It is categorised as a Write tool in the Jshookmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on nemu_regs_restore? +

Register the Jshook MCP server in PolicyLayer and add a rule for nemu_regs_restore: 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.

What risk level is nemu_regs_restore? +

nemu_regs_restore is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit nemu_regs_restore? +

Yes. Add a rate_limit block to the nemu_regs_restore 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.

How do I block nemu_regs_restore completely? +

Set action: deny in the PolicyLayer policy for nemu_regs_restore. 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.

What MCP server provides nemu_regs_restore? +

nemu_regs_restore 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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