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abhinav7895

Bolna MCP Server

by abhinav7895

bolna_search_phone_numbers

Search for available phone numbers to purchase, filtered by country, area code, or digit pattern.

Instructions

Search for available phone numbers to purchase, filtered by country, area code, or pattern

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMaximum number of results to return (default 5)
patternNoDigit pattern to match in the phone number, e.g. '555' (optional)
area_codeNoArea/region code to filter available numbers (optional)
country_codeYesISO 3166-1 alpha-2 country code, e.g. "US" for United States, "IN" for India
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It correctly indicates a read-only search operation, but does not disclose authorization needs, rate limits, or potential side effects. Minimal but accurate.

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?

Single sentence, direct, and front-loaded with the core action and filters. No wasted words.

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

Completeness3/5

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

The description covers purpose and filters but lacks details about result format, pagination (limit parameter present), or any behavioral nuances. For a search tool with no output schema, more context would be helpful.

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 coverage is 100% with adequate parameter descriptions. The description echoes filter dimensions without adding new semantic depth beyond the schema, earning a baseline score.

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 uses a specific verb 'search' and resource 'available phone numbers to purchase', clearly distinguishing this from sibling tools like bolna_buy_phone_number (purchase) and bolna_list_phone_numbers (list owned numbers). The filters (country, area code, pattern) are explicitly stated.

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

Usage Guidelines3/5

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

The description implies this tool is for discovery before purchase but does not explicitly state when to use versus alternatives, nor provides prerequisites or exclusions. Guidance is implicit but not actionable.

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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