get_password_pattern
Get regex pattern for password validation with custom requirements.
This record as markdown: /tools/io-tinyfn-tinyfn/get-password-pattern.md
What get_password_pattern does on TinyFn
AI agents call get_password_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 |
|---|---|---|---|
min_length | integer | — | Minimum length |
require_digit | boolean | — | Require digit |
require_special | boolean | — | Require special character |
require_lowercase | boolean | — | Require lowercase |
require_uppercase | boolean | — | Require uppercase |
Parameters from the server's own tool schema.
Why get_password_pattern is rated Low
This tool retrieves or generates a regex pattern for validation purposes—a pure informational operation with no side effects. It does not execute code, modify data, delete anything, or move money. The returned pattern is a string used by the caller for validation logic, making this a Read-category tool with low severity since misuse would only result in incorrect validation logic, not system compromise or data loss.
From the tool's definition Tool name 'get_password_pattern' and description 'Get regex pattern for password validation with custom requirements' indicate a retrieval operation that returns a regex pattern without modifying, executing, or deleting any data.
Attacks that exploit this kind of access
The rule that runs get_password_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_password_pattern, this is the rule to start with:
get_password_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_password_pattern call is checked against it from then on.
Questions about get_password_pattern
Get regex pattern for password validation with custom requirements. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
get_password_pattern accepts 5 parameters: min_length, require_digit, require_special, require_lowercase, require_uppercase. 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_password_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_password_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_password_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_password_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_password_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.
More on TinyFn, and thousands of servers like it.
This server
Across the catalogue