generate_decrypt_script · Js Reverse MCP: Risk & Policy

WHAT IT DOES

What generate_decrypt_script does on Js Reverse

AI agents invoke generate_decrypt_script to trigger actions in Js Reverse. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why generate_decrypt_script needs a policy

This tool generates executable scripts (Python or JavaScript) and automatically saves them to the output directory. It spans Write (saving files) and Execute (producing runnable code that performs cryptographic operations). Per the rules, Execute is more severe than Write.

From the tool's definition 生成完整的解密脚本（Python或JavaScript），自动保存到output目录 — generates and saves executable decryption scripts to disk

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_decrypt_script Rate-limited

generate_decrypt_script stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_decrypt_script": {
      "limits": [
        {
          "counter": "generate_decrypt_script_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Js Reverse, so you can run agents against it safely.

FAQ

Questions about generate_decrypt_script

What does the generate_decrypt_script tool do? +

根据分析结果生成完整的解密脚本（Python或JavaScript），自动保存到output目录. It is categorised as a Execute tool in the Js Reverse MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on generate_decrypt_script? +

Register the Js Reverse MCP server in PolicyLayer and add a rule for generate_decrypt_script: 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 Js Reverse. Nothing to install.

What risk level is generate_decrypt_script? +

generate_decrypt_script is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit generate_decrypt_script? +

Yes. Add a rate_limit block to the generate_decrypt_script 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 generate_decrypt_script completely? +

Set action: deny in the PolicyLayer policy for generate_decrypt_script. 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 generate_decrypt_script? +

generate_decrypt_script is provided by the Js Reverse MCP server (jenn619/js-reverse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.