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Get audio URL

get_audio_url
Read-onlyIdempotent

Retrieve the playable audio URL for an article by providing its slug. Free tier includes ads; premium tier returns ad-free audio.

Instructions

Resolve the playable audio URL for an article. Returns a stitched-with-ad URL on free tier or the bare audio for plus/pro.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
slugYes
Behavior4/5

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

Annotations already declare readOnlyHint and idempotentHint, so the description adds value by explaining output variation (free tier with ads vs. bare audio for plus/pro). This increases transparency beyond structured annotations.

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 concise sentences, front-loaded with the core purpose, no filler. Every clause adds value.

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 no output schema, the description explains the return behavior (stitched-with-ad vs. bare audio). It is complete for a simple tool with one parameter and good annotations, though error handling or slug format could be mentioned.

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

Parameters2/5

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

The input schema has 0% description coverage for the parameter 'slug'. The description does not explain what 'slug' means, leaving ambiguity. With low schema coverage, the description should compensate but fails to do so.

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 resolves a playable audio URL for an article, with a specific verb and resource. It also distinguishes behavior based on tier (free vs plus/pro), adding useful detail.

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?

The description provides no guidance on when to use this tool versus alternatives. Sibling tools exist for related operations, but the description does not mention exclusions or context for selection.

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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