# sms_get_message

A read tool on the Twilio SMS MCP Server MCP server.

Agent View of the PolicyLayer registry record for `sms_get_message`. HTML page: https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-get-message

## Facts

- Tool: `sms_get_message`
- Server: Twilio SMS MCP Server (`0x-professor/twilio-mcp-server`) — https://policylayer.com/tools/0x-professor-twilio-mcp-server.md
- Homepage: https://github.com/0x-Professor/Twilio-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "sms_get_message",
    "arguments": {}
  }
}
```

## Why sms_get_message is rated Low

The tool appears to retrieve or query existing SMS/MMS message data from Twilio, consistent with the Read category. Severity is medium because unauthorized message retrieval could expose sensitive communications (PII, credentials, business secrets). Confidence is reduced to 0.75 due to empty description, though context from sibling tools and naming strongly indicate read-only behavior.

From the tool's own definition: "Tool name 'sms_get_message' indicates retrieval of message data. Sibling tools like 'sms_list_inbox', 'sms_list_sent', 'sms_get_conversation' all perform read-only operations, suggesting this tool queries/fetches message content without modification."

## Use case

AI agents call sms_get_message to retrieve information from Twilio SMS MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Twilio SMS MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "sms_get_message": {}
  }
}
```

## Other tools on Twilio SMS MCP Server (15)

- `sms_cancel_scheduled` — Destructive — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-cancel-scheduled.md
- `sms_delete_message` — Destructive — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-delete-message.md
- `sms_account_info` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-account-info.md
- `sms_format_number` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-format-number.md
- `sms_get_conversation` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-get-conversation.md
- `sms_list_inbox` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-list-inbox.md
- `sms_list_numbers` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-list-numbers.md
- `sms_list_sent` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-list-sent.md
- `sms_lookup_number` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-lookup-number.md
- `sms_redact_message` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-redact-message.md
- `sms_usage_stats` — Read — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-usage-stats.md
- `sms_mark_read` — Write — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-mark-read.md
- `sms_schedule` — Write — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-schedule.md
- `sms_send` — Write — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-send.md
- `sms_send_bulk` — Write — https://policylayer.com/tools/0x-professor-twilio-mcp-server/sms-send-bulk.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=0x-professor-twilio-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/0x-professor-twilio-mcp-server