High Risk →

build

Runs go build and returns structured error list (file, line, column, message).

Risk signalsAccepts file system path (path) · High parameter count (11 properties)

Part of the Go server.

build can trigger actions in Go, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

SECURE GO →

Free to start. No card required.

AI agents invoke build to trigger processes or run actions in Go. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

build can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

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

See the full Go policy for all 11 tools.

Get this rule live on your own Go server in minutes. PolicyLayer enforces it on every call, before it runs.

ENFORCE ON MY GO →

View all 11 tools →

These attack patterns abuse exactly the kind of access build gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so build only ever does what you allow.

SECURE GO →

Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.

What does the build tool do? +

Runs go build and returns structured error list (file, line, column, message).. It is categorised as a Execute tool in the Go MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on build? +

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

What risk level is build? +

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

Can I rate-limit build? +

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

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

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

Enforce policy on every Go tool call.

Deterministic rules across all 11 Go tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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