wasm_dump

Dump a captured WebAssembly module from the current page.

SERVERJshookmcp SOURCE@jshookmcp/jshook

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-vmoranv-jshookmcp/wasm-dump.md

WHAT IT DOES

What wasm_dump does on Jshookmcp

AI agents call wasm_dump 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.

RISK

Why wasm_dump is rated Low

Extracts and reads WebAssembly module data without modifying or executing code.

From the tool's definition Dump a captured WebAssembly module from the current page.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

wasm_dump Allowed

wasm_dump is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wasm_dump": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about wasm_dump

What does the wasm_dump tool do? +

Dump a captured WebAssembly module from the current page. It is categorised as a Read tool in the Jshookmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on wasm_dump? +

Register the Jshook MCP server in PolicyLayer and add a rule for wasm_dump: 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 wasm_dump? +

wasm_dump is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit wasm_dump? +

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

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

wasm_dump 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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