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Mapbox Developer MCP Server

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Calculate GeoJSON Bounding Box Tool

bounding_box_tool
Read-onlyIdempotent

Calculate the bounding box of any GeoJSON content, returning coordinates as [minX, minY, maxX, maxY].

Instructions

Calculates bounding box of given GeoJSON content, returns as [minX, minY, maxX, maxY]

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
geojsonYesGeoJSON content to calculate bounding box for

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
bboxYesBounding box as [minX, minY, maxX, maxY]
messageNoStatus or error message
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint. The description adds the return format, which is useful but doesn't disclose additional behavioral traits beyond what annotations provide.

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, front-loaded with verb and resource, no wasted words. Every part earns its place.

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 only one parameter with full schema description and an existing output schema, the description completely covers what the tool does and the output format. 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 description coverage is 100%; the parameter 'geojson' is fully described in the schema. The description adds no additional meaning or usage details beyond the schema.

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 clearly states the verb 'calculates' and the resource 'bounding box of given GeoJSON content', and specifies the return format [minX, minY, maxX, maxY]. This distinguishes it from sibling tools like country_bounding_box_tool or coordinate_conversion_tool.

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?

No explicit guidance on when to use versus alternatives (e.g., country_bounding_box_tool). The purpose is clear, but the description does not provide context for decision-making among siblings.

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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