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Summarize area

summarize_area
Read-onlyIdempotent

Get an area summary with total places and top categories. Provide lat/lon coordinates or a place name to receive structured insights for spatial analysis.

Instructions

Summarize what's in an area: total places and top categories.

Give the center as lat/lon, or as `where` — a {"lat", "lon"} dict, a
GERS id, or a free-text place name — but not both (and not neither);
either way returns {"error": "bad_request"} naming the choice. A
`where` given as an id/name adds a compact "resolved": {"name", "id",
"lat", "lon", "matched_by"} to the answer; absent for lat/lon or a
{lat,lon} where.

Returns a structured {"error": ...} instead of raising if upstream is
unavailable or the dataset is missing columns this tool depends on.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
latNo
lonNo
whereNo
radius_mNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Install Server

TDQS

A4/5.0
Behavior5/5

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

Adds substantial behavior beyond the annotations: invalid calls return a structured {'error': 'bad_request'} naming the problematic choice, a 'resolved' object appears conditionally, and upstream failures return errors instead of raising exceptions. These are non-obvious runtime behaviors that an agent cannot infer from readOnlyHint or idempotentHint.

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?

The description is tightly structured into purpose, input contract, and error behavior. Every sentence earns its place, and line breaks make the key constraints easy to scan.

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

Completeness4/5

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

Given the output schema exists, the description covers the essential call contract, input constraints, and error behavior. The only clear gap is the undocumented radius_m parameter, which prevents full completeness for an agent needing to set a custom radius.

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 0%, so the description must compensate. It usefully explains lat/lon versus where formats, the exclusivity constraint, and the 'resolved' object behavior. However, radius_m is never described, leaving its units and meaning ambiguous, so the compensation is incomplete.

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 opens with a specific verb and resource: 'Summarize what's in an area: total places and top categories.' This clearly defines the tool's output and differentiates it from sibling tools like summarize_buildings, compare_areas, and land_use_at.

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

Usage Guidelines2/5

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

There is no guidance on when to choose this tool over its many siblings, such as whether to prefer summarize_area over summarize_buildings or compare_areas. The description only explains the lat/lon vs. where calling constraint, which is parameter-level guidance rather than tool-selection guidance.

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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