Download Generated Apk

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states that the APK is written to a local file but does not reveal overwrite behavior, permission requirements, error handling, or whether any server-side state changes occur. This is a minimal action statement rather than a meaningful behavioral 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, focused sentence with no filler. It front-loads the action and resource, and every word earns its place.

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?

The tool is simple and the schema fully documents parameters, with an output schema present. However, the description omits the important relationship to list_generated_apks (which provides download_id) and does not address file overwrite behavior. These gaps are partially mitigated by schema descriptions, so overall completeness is moderate.

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 100% coverage with descriptive text for all four parameters, so the description adds no additional parameter semantics. Baseline 3 is appropriate since the schema already carries the explanatory weight.

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 states a specific verb ('Download'), a specific resource ('generated APK'), and a destination ('local file'). It distinguishes from siblings like download_system_apk_variant through the 'generated' qualifier, though it could be more explicit about the alternative.

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 versus alternatives such as download_system_apk_variant or list_generated_apks. The description does not mention prerequisites, workflow context, or conditions for choosing this tool; the only usage clue is embedded in the schema description for download_id.

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