tunnels_start

Run tunnels.start through the Appaloft application operation catalog. Shared with CLI and HTTP/API.

SERVERAppaloft SOURCE@appaloft/mcp

High RISK CLASS

Category Execute

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/appaloft-mcp/tunnels-start.md

WHAT IT DOES

What tunnels_start does on Appaloft

AI agents invoke tunnels_start to trigger actions in Appaloft. 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.

Parameter	Type	Required
`originUrl`	string	Yes
`providerKey`	string	Yes
`durationMinutes`	integer	—

Parameters from the server's own tool schema.

RISK

Why tunnels_start is rated High

tunnels_start triggers real processes with real consequences. An agent gone sideways doesn't fire it once. It starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs tunnels_start safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Appaloft, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tunnels_start, this is the rule to start with:

tunnels_start Rate-limited

tunnels_start 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": {
    "tunnels_start": {
      "limits": [
        {
          "counter": "tunnels_start_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 Appaloft, apply this rule, and every tunnels_start call is checked against it from then on.

FAQ

Questions about tunnels_start

What does the tunnels_start tool do? +

Run tunnels.start through the Appaloft application operation catalog. Shared with CLI and HTTP/API. It is categorised as a Execute tool in the Appaloft MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

What parameters does tunnels_start accept? +

tunnels_start accepts 3 parameters: originUrl, providerKey, durationMinutes. Required: originUrl, providerKey. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on tunnels_start? +

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

What risk level is tunnels_start? +

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

Can I rate-limit tunnels_start? +

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

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

tunnels_start is provided by the Appaloft MCP server (@appaloft/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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