get_phone_pattern
Get regex pattern for phone number validation.
This record as markdown: /tools/io-tinyfn-tinyfn/get-phone-pattern.md
What get_phone_pattern does on TinyFn
AI agents call get_phone_pattern to retrieve information from TinyFn without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
country | string | — | Country: US, UK, international |
Parameters from the server's own tool schema.
Why get_phone_pattern is rated Low
This tool retrieves/queries a phone number regex pattern with no side effects on data or systems. It does not create, modify, delete, or execute operations—it merely returns static or pre-computed validation pattern data. Consistent with the server's purpose (deterministic utility tools for validation), this is a Read classification with low severity.
From the tool's definition Tool name 'get_phone_pattern' and description 'Get regex pattern for phone number validation' indicate a retrieval operation that returns a regex pattern for validation purposes.
Attacks that exploit this kind of access
The rule that runs get_phone_pattern safely
PolicyLayer is an MCP gateway: it sits between your AI agents and TinyFn, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_phone_pattern, this is the rule to start with:
get_phone_pattern is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every get_phone_pattern call is checked against it from then on.
Questions about get_phone_pattern
Get regex pattern for phone number validation. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
get_phone_pattern accepts 1 parameter: country. The full parameter table on this page comes from the server's own tool schema.
Register the TinyFn MCP server in PolicyLayer and add a rule for get_phone_pattern: 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 TinyFn. Nothing to install.
get_phone_pattern is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_phone_pattern 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 get_phone_pattern. 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.
get_phone_pattern is provided by the TinyFn MCP server (https://api.tinyfn.io/mcp/all/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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