Use this AFTER modify_subscriber_steering_list to actively push the updated OPLMN (operator preference list) to the subscriber's physical eSIM/SIM. Without this call, the steering list assignment change is recorded in OCS but the device continues using the old operator preference list until it pe...
Part of the Carrier MCP: Give Your AI Agent Global Connectivity server.
Free to start. No card required.
AI agents use push_steering_to_subscriber to create or modify resources in Carrier MCP: Give Your AI Agent Global Connectivity. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call push_steering_to_subscriber repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Carrier MCP: Give Your AI Agent Global Connectivity.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"push_steering_to_subscriber": {
"limits": [
{
"counter": "push_steering_to_subscriber_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Carrier MCP: Give Your AI Agent Global Connectivity policy for all 65 tools.
These attack patterns abuse exactly the kind of access push_steering_to_subscriber gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Use this AFTER modify_subscriber_steering_list to actively push the updated OPLMN (operator preference list) to the subscriber's physical eSIM/SIM. Without this call, the steering list assignment change is recorded in OCS but the device continues using the old operator preference list until it performs a network re-registration. This is required for immediate operator switching (e.g. steering a subscriber away from an expensive roaming partner in real time). Params: iccid (subscriber identifier). Returns: push confirmation from OCS with delivery status. Do NOT call this without first calling modify_subscriber_steering_list — pushing without an assigned steering list is a no-op and wastes an OCS call.. It is categorised as a Write tool in the Carrier MCP: Give Your AI Agent Global Connectivity MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Carrier MCP: Give Your AI Agent Global Connectivity MCP server in PolicyLayer and add a rule for push_steering_to_subscriber: 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 Carrier MCP: Give Your AI Agent Global Connectivity. Nothing to install.
push_steering_to_subscriber is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the push_steering_to_subscriber 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.
Set action: deny in the PolicyLayer policy for push_steering_to_subscriber. 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.
push_steering_to_subscriber is provided by the Carrier MCP: Give Your AI Agent Global Connectivity MCP server (carrier/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 65 Carrier MCP: Give Your AI Agent Global Connectivity 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.