acp_label_resource · Ambient Code Platform MCP Server MCP

WHAT IT DOES

What acp_label_resource does on Ambient Code Platform MCP Server

AI agents use acp_label_resource to create or update resources in Ambient Code Platform MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ambient Code Platform MCP Server environment.

WHY IT NEEDS A POLICY

Why acp_label_resource needs a policy

Labeling is a write operation that modifies resource metadata. While labels can affect resource behavior (filtering, organization, policy application), the action itself is reversible—labels can be removed or changed. The tool does not delete resources, execute arbitrary code, or commit financial transactions.

From the tool's definition Tool description states 'Add/update labels on any ACP resource' with '--overwrite' flag. These are reversible metadata modifications that create or modify resource attributes without deletion or irreversible state changes.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

acp_label_resource Rate-limited

acp_label_resource stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "acp_label_resource": {
      "limits": [
        {
          "counter": "acp_label_resource_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ambient Code Platform MCP Server, so you can run agents against it safely.

FAQ

Questions about acp_label_resource

What does the acp_label_resource tool do? +

Add/update labels on any ACP resource. Works for sessions, workspaces, future types. Uses --overwrite. It is categorised as a Write tool in the Ambient Code Platform MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on acp_label_resource? +

Register the Ambient Code Platform MCP Server MCP server in PolicyLayer and add a rule for acp_label_resource: 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 Ambient Code Platform MCP Server. Nothing to install.

What risk level is acp_label_resource? +

acp_label_resource is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit acp_label_resource? +

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

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

acp_label_resource is provided by the Ambient Code Platform MCP Server MCP server (jeremyeder/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.