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

Annotations already declare destructiveHint=true, readOnlyHint=false, idempotentHint=false and openWorldHint=true, so the safety profile is covered. The description usefully adds that this is an asynchronous task submission with a fixed collector identifier, but it never says results must be retrieved later (e.g. via scraper_task_status/scraper_task_result) or that repeated calls create new tasks, which is the missing behavioral context.

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, front-loaded with the trigger condition before the mechanism, so the routing information comes first. The first sentence is a long bilingual enumeration of near-synonymous keyword variants, which is mildly repetitive but not empty padding.

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?

With no output schema, the description should carry more of the workflow burden; it explains task submission but not what the call returns (task id/handle) or the follow-up tool needed to fetch results, despite scraper_task_status and scraper_task_result being available siblings. It is adequate for invoking the tool but incomplete for using it end-to-end.

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?

Schema description coverage is 100%, so both app_url and file_name are already documented in the schema; baseline 3 applies. The only added value is tying the collector identifier to the app_url input, which is marginal and does not explain format or override behavior beyond the schema.

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 names both the verb (submit a collection/Builder task) and the exact resource (Google Play store information, fixed collector id google-play-store_information_by-url), so an agent knows precisely what happens on invocation. It does not, however, distinguish itself from adjacent siblings such as google_play or google_play_store_reviews, which occupy the same topical space.

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?

It gives a trigger condition ('when the user needs Google Play store/app information combined with collect/scrape/fetch verbs'), which is implied usage guidance rather than explicit routing. No alternative tool is named for the case of, e.g., wanting reviews or a Play listing without a task submission, so the agent must infer boundaries from the sibling list.

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