library_exportJSON

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

Annotations are absent, so the description carries the full burden of behavioral disclosure. It only states the basic action without revealing whether the JSON is written to a file (though outputPath suggests so), whether files are overwritten, what happens if the library is not loaded, or any other side effects. This is 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.

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

The description is a single, tightly worded sentence with no filler or redundant information. Every word contributes to conveying the core purpose and output format.

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

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

Despite the tool's low complexity, the description lacks essential context. There is no mention of return values or output behavior, no explicit prerequisite (like library_load), and no parameter documentation. The absence of an output schema and annotations increases the need for descriptive detail, which is missing.

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

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

The input schema has one parameter (outputPath) with 0% schema description coverage. The description does not mention or elaborate on this parameter at all, providing no guidance on path format, required vs optional usage, or default behavior. Since schema coverage is low, the description must compensate but fails to do so.

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

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

The description clearly states the tool's function: exporting loaded library tracks and playlists to JSON. It uses a specific verb ('Export'), identifies the resource ('loaded library tracks and playlists'), and specifies the output format. This distinguishes it from sibling tools like library_search or rekordbox_exportXml.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool instead of alternatives, nor are prerequisites or exclusions mentioned. The phrase 'loaded library' implies a prerequisite state but does not explicitly state that library_load must be called first. There is no comparison to sibling tools.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.