wasm_to_c

Transpile .wasm bytecode to C source and header files.

SERVERJshookmcp SOURCE@jshookmcp/jshook

High RISK CLASS

Category Execute

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/wasm-to-c.md

WHAT IT DOES

What wasm_to_c does on Jshookmcp

AI agents invoke wasm_to_c to trigger actions in Jshookmcp. 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.

RISK

Why wasm_to_c is rated High

Converts binary WASM to C source code, executing a transpilation process with file output effects.

From the tool's definition Transpile .wasm bytecode to C source and header files

Attacks that exploit this kind of access

RECOMMENDED RULE

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

wasm_to_c Rate-limited

wasm_to_c 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": {
    "wasm_to_c": {
      "limits": [
        {
          "counter": "wasm_to_c_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about wasm_to_c

What does the wasm_to_c tool do? +

Transpile .wasm bytecode to C source and header files. It is categorised as a Execute tool in the Jshookmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wasm_to_c? +

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

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

Can I rate-limit wasm_to_c? +

Yes. Add a rate_limit block to the wasm_to_c 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_to_c completely? +

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

wasm_to_c 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.

KEEP EXPLORING

More on Jshook, and thousands of servers like it.

This server

All 736 Jshook tools → High-risk tools on this server →

Across the catalogue

All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →