send_rcs · SOLAPI MCP Server MCP: Risk & Policy

WHAT IT DOES

What send_rcs does on SOLAPI MCP Server

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

WHY IT NEEDS A POLICY

Why send_rcs needs a policy

This tool sends RCS messages, which is a communication action that creates outbound messages. It is reversible in the sense that messages are sent (not deleted), placing it in Write rather than Destructive. However, the severity is high because misuse could result in mass messaging, spam, or unauthorized communications to recipients, and the server itself flags it with a safety guard (confirmed=true requirement).

From the tool's definition Send an RCS message via SOLAPI... SAFETY: requires confirmed=true

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_rcs Rate-limited

send_rcs 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": {
    "send_rcs": {
      "limits": [
        {
          "counter": "send_rcs_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 SOLAPI MCP Server, so you can run agents against it safely.

FAQ

Questions about send_rcs

What does the send_rcs tool do? +

Send an RCS message via SOLAPI. Requires a brandId. Optional templateId (with variables JSON), subject, image, mmsType, copyAllowed. SAFETY: requires confirmed=true. It is categorised as a Write tool in the SOLAPI 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 send_rcs? +

Register the SOLAPI MCP Server MCP server in PolicyLayer and add a rule for send_rcs: 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 SOLAPI MCP Server. Nothing to install.

What risk level is send_rcs? +

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

Can I rate-limit send_rcs? +

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

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

send_rcs is provided by the SOLAPI MCP Server MCP server (solapi/solapi-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.