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quakes.recent

Find recent earthquakes near a specific latitude and longitude. Filter by time window, distance, and magnitude threshold.

Instructions

Recent earthquakes near a coordinate (USGS feed).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
latYes
lonYes
hoursNo
radius_kmNo
min_magnitudeNo
Behavior2/5

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

With no annotations, the description bears full burden. It states the source (USGS feed) and basic operation but omits behavioral details like result limits, real-time status, or what happens with no earthquakes. Minimal disclosure.

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

Conciseness3/5

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

The description is a single short sentence, which is concise, but it lacks structure and depth. Every word earns its place, but it could be more informative without much added length.

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

Completeness1/5

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

Given five parameters, no output schema, and no annotations, the description is severely incomplete. It does not explain what the tool returns, how parameters affect results, or any other contextual information needed for effective use.

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

Parameters1/5

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

Schema description coverage is 0%, meaning the schema provides no parameter descriptions. The tool description does not compensate at all—it does not mention any parameters or their meaning. The agent must rely solely on parameter names and defaults.

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

Purpose4/5

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

The description clearly states the tool returns recent earthquakes near a coordinate, referencing USGS feed. It is specific and distinguishes from general earth tools, though it does not explicitly differentiate from siblings like 'earth.events' or 'earth.now'.

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?

No explicit guidance on when to use this tool versus alternatives. The description implies usage for recent earthquakes near a point but lacks context about limitations or when another tool might be preferable.

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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