generated_apks_download

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

No annotations are present, so the description carries the full burden. It clearly states that the return value is the binary as a base64 string, which is key behavioral info. It does not mention any side effects, but as a download it is expected to be read-only. No contradictions.

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?

Two sentences, no unnecessary words. Front-loaded with the action and includes a key reference to the sibling list tool. Every sentence adds value.

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 description mentions the return format (base64 string) which compensates for the lack of output schema. However, it does not cover potential errors, limits, or the meaning of all parameters. Still reasonably complete for a straightforward download tool.

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 schema has 3 parameters with only 33% description coverage (only packageName has a description). The description adds context for `downloadId` (linking to list) but does not explain `versionCode` or `packageName` beyond the schema. This partially compensates but is insufficient.

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 verb 'Download' and the resource 'generated APK'. It also specifies that `downloadId` is from `generated_apks_list`, distinguishing it from sibling tools like `generated_apks_list` and other download tools.

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?

The description implies usage context by linking `downloadId` to `generated_apks_list`, but it does not explicitly state when to use or not use the tool, nor does it mention alternatives. Guidance is minimal.

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