MCP Tool Reference Medium Risk

create_verification

Start a verification via SMS, call, or email

Part of the Twilio MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

twilio-labs/mcp Write

WHEN AI AGENTS USE THIS TOOL

AI agents use create_verification to create or modify resources in Twilio. 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.

WHY ENFORCE A POLICY ON CREATE_VERIFICATION

Without a policy, an AI agent could call create_verification repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Twilio.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

twilio.yaml 
tools:
  create_verification:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Twilio policy for all 36 tools.

DETAILS

Tool Name

create_verification

Category

Write

MCP Server

Twilio MCP Server

Risk Level

Medium

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create_conversation Write
Create a new conversation
create_deployment Write
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create_execution Write
Trigger a Studio flow execution
create_function Write
Create a serverless function
create_incoming_phone_number Write
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create_service Write
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View all 36 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the create_verification tool do?

Start a verification via SMS, call, or email. It is categorised as a Write tool in the Twilio MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_verification?

Add a rule in your Intercept YAML policy under the tools section for create_verification. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Twilio MCP server.

What risk level is create_verification?

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

Can I rate-limit create_verification?

Yes. Add a rate_limit block to the create_verification rule in your Intercept 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 create_verification completely?

Set action: deny in the Intercept policy for create_verification. 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 create_verification?

create_verification is provided by the Twilio MCP server (twilio-labs/mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON TWILIO

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Twilio policy →