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miqui

yelp-mcp-min

by miqui

find_business_by_phone

Read-onlyIdempotent

Look up a business using its phone number. Returns matching Yelp listings from the provided E.164 phone number.

Instructions

Look up Yelp businesses that match a phone number.

Use this when you have a phone number and need to identify which business it belongs to. Returns up to a handful of candidates ranked by relevance. An empty list means no Yelp listing was found for that number.

The phone must include the country code in E.164 format (+14155551234).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
paramsYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint and idempotentHint. Description adds valuable context: returns up to a handful of candidates, empty list if not found, no contradictions.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences, front-loads the purpose, no fluff. Every sentence serves a purpose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given one parameter, output schema, and annotations, the description covers purpose, usage, phone format, and return behavior completely. No gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema already contains parameter description for phone. Tool description repeats the E.164 format requirement, adding no new information beyond what schemas provides. With 0% schema coverage context, but the schema actually has a description, so baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states 'Look up Yelp businesses that match a phone number,' which clearly specifies the action (look up) and resource (Yelp businesses) and distinguishes it from siblings that do not use phone number as primary key.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states when to use: when you have a phone number and need to identify the business. Mentions return behavior but lacks explicit exclusion of alternatives, though sibling tools are differentiated implicitly.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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