levenshtein_distance

Calculate Levenshtein (edit) distance between two strings.

SERVERTinyFn SOURCEhttps://api.tinyfn.io/mcp/all/

Low RISK CLASS

Category Read

Parameters 22 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-tinyfn-tinyfn/levenshtein-distance.md

WHAT IT DOES

What levenshtein_distance does on TinyFn

AI agents call levenshtein_distance 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
`text1`	string	Yes	First string
`text2`	string	Yes	Second string

Parameters from the server's own tool schema.

RISK

Why levenshtein_distance is rated Low

This tool performs a pure deterministic computation on two input strings and returns a numeric result. It has no side effects, does not modify any data, and cannot cause harm if misused — it simply computes a string distance metric.

From the tool's definition Calculate Levenshtein (edit) distance between two strings

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs levenshtein_distance 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 levenshtein_distance, this is the rule to start with:

levenshtein_distance Allowed

levenshtein_distance is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "levenshtein_distance": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every levenshtein_distance call is checked against it from then on.

FAQ

Questions about levenshtein_distance

What does the levenshtein_distance tool do? +

Calculate Levenshtein (edit) distance between two strings. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.

What parameters does levenshtein_distance accept? +

levenshtein_distance accepts 2 parameters: text1, text2. Required: text1, text2. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on levenshtein_distance? +

Register the TinyFn MCP server in PolicyLayer and add a rule for levenshtein_distance: 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.

What risk level is levenshtein_distance? +

levenshtein_distance is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit levenshtein_distance? +

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

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

levenshtein_distance 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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