High Risk →

vet

Runs go vet and returns structured static analysis diagnostics with analyzer names. Uses -json flag for native JSON output with automatic text fallback.

How to control vet ↓

What vet does on Http

AI agents invoke vet to trigger actions in Http. 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.

High Risk

Why vet needs a policy

This tool executes the 'go vet' command, a static analysis tool that runs code analysis on Go source files. While it is read-only in terms of filesystem changes, it executes an external process/command whose behavior depends on the provided arguments (which files/packages to analyze). It falls under Execute as it triggers an external operation.

From the tool's definition Runs go vet and returns structured static analysis diagnostics

Documented attack patterns abuse exactly the kind of access vet gives an agent:

How to control vet

PolicyLayer is an MCP gateway — it sits between your AI agents and Http, and nothing reaches the server without passing your rules. This is the rule we recommend for vet:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "vet": {
      "limits": [
        {
          "counter": "vet_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

vet 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.

  1. Create a free account and register Http — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about vet

What does the vet tool do? +

Runs go vet and returns structured static analysis diagnostics with analyzer names. Uses -json flag for native JSON output with automatic text fallback. It is categorised as a Execute tool in the Http MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on vet? +

Register the Http MCP server in PolicyLayer and add a rule for vet: 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 Http. Nothing to install.

What risk level is vet? +

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

Can I rate-limit vet? +

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

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

vet is provided by the Http MCP server (@paretools/http). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Http tool call.

Start from Http, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

202 Http tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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