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landsat_download_url

Retrieve a direct download URL for a Landsat scene using its entity ID and USGS authentication credentials.

Instructions

Get download URL for a Landsat scene. Requires USGS authentication.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
entity_idYesLandsat entity ID
Behavior2/5

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

Beyond the annotation (none provided), the description only mentions USGS authentication. It does not disclose rate limits, URL expiration, error handling, or read-only nature. For a tool fetching a URL, more behavioral context is needed.

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, front-loaded with the core purpose, followed by the authentication requirement. No unnecessary words, clear structure.

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

Completeness3/5

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

For a single-parameter tool with no output schema, the description is adequate but lacks details on URL format, temporary vs permanent, and error conditions. It meets minimum viability but has 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?

The input schema has 100% coverage with a description for entity_id. The tool description adds no extra semantics beyond what the schema already states, so baseline score 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 the verb 'Get download URL' and the resource 'Landsat scene', distinguishing it from sibling tools like landsat_metadata or landsat_search. It is specific and unambiguous.

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 guidance on when to use this tool versus alternatives, such as landsat_search or sentinel_download_url. The only context is the authentication requirement, but no exclusions or comparisons.

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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