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by Adeniyikayodee
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

find_locations

Search USGS monitoring locations by state, county, hydrologic unit, site type, or bounding box to obtain stable site identifiers for hydrology data retrieval.

Instructions

Search USGS monitoring locations by state, county, hydrologic unit, site type, or bounding box. At least one filter is required. Returns identifiers of the form USGS-01646500, which every other tool takes.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "find_locations"
  }
}

Input Schema

NameRequiredDescriptionDefault
bboxNowest,south,east,north in decimal degrees
limitNo
stateNoFull state name, as in Maryland
countyNoFull county name
site_typeNoAs in Stream, Lake, Well
hydrologic_unit_codeNoHUC, any level

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.2/5.0
Behavior4/5

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

With no annotations, the description carries the burden of behavioral disclosure. It reveals a key constraint ('At least one filter is required') and explains the output format ('Returns identifiers of the form USGS-01646500, which every other tool takes'). It does not mention the limit parameter or potential errors, but the key behaviors are disclosed.

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 two sentences long. The first sentence is front-loaded with the verb and resource, listing criteria. The second sentence highlights a key constraint and the output format. Every sentence earns its place with no redundancy or filler.

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 tool's complexity (6 parameters, no output schema, no annotations), the description is fairly complete. It specifies the search dimensions, the required-filter rule, and the form of returned identifiers. It does not describe the full response structure (e.g., whether additional metadata is returned), but for a search tool this is adequate.

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?

The schema provides descriptions for 5 of 6 parameters (83% coverage), so the baseline is 3. The description reinforces those same filters and adds the crucial constraint that at least one filter is required. However, it does not explain the 'limit' parameter beyond the schema's default, and it adds little semantic information beyond what the schema already contains.

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 tool's function: 'Search USGS monitoring locations by state, county, hydrologic unit, site type, or bounding box.' This includes a specific verb and resource, and the variety of search criteria distinguishes it from sibling tools like describe_location or get_series.

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?

'At least one filter is required' provides a clear constraint for usage. The statement 'Returns identifiers of the form USGS-01646500, which every other tool takes' implies this is the entry point for other tools, giving context on when to use it. It does not explicitly list alternative tools for different search needs, but the guidance is sufficient.

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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