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Find fresh powder

find_best_powder
Read-onlyIdempotent

Find ski resorts with fresh powder snow now, sorted by 24-hour snowfall. Filter by region and minimum snowfall amount.

Instructions

Find resorts with the freshest powder snow right now. Returns resorts sorted by 24-hour snowfall. Use for "where is it snowing?" or "fresh powder" queries.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoNumber of results (default: 10)
regionNoFilter by region
minSnowfallNoMinimum 24h snowfall in cm to include (default: 5)

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
titleYes
resortsYes
markdownYesHuman-readable markdown summary (required for ChatGPT Instant mode).
subtitleNo
updatedAtYes
Behavior4/5

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

Annotations already indicate read-only, idempotent, non-destructive behavior. The description adds value by explaining the sorting by 24-hour snowfall and real-time nature, which is 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?

Two sentences, no waste. The first sentence defines the action and output, the second provides usage context. Front-loaded and efficient.

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?

For a simple search tool with optional parameters and an output schema, the description covers core purpose, ranking logic, and use cases. No gaps given the available structured data.

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 has 100% coverage with descriptions for all three parameters (limit, region, minSnowfall). The description does not add further parameter-specific details, so baseline of 3 is appropriate.

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 it finds resorts with the freshest powder snow, sorted by 24-hour snowfall. It distinguishes from sibling tools like 'find_powder_trips' or 'get_snow_report' by focusing on current conditions and ranking.

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?

Explicitly says to use for 'where is it snowing?' or 'fresh powder' queries, providing clear context. It does not mention when not to use or alternatives, but the guidance is sufficient for typical use.

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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