Bing child URL traffic information

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

Annotations declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, destructiveHint=false, which already cover the safety profile. The description adds the 'one official Bing result page' limitation, which is genuinely useful context since openWorldHint might suggest completeness. However, it doesn't explain that only one page is returned or how page/limit interplay works behaviorally.

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?

Single sentence, zero wasted words. Front-loaded with the key distinguishing detail ('index traffic details for URLs under a directory'). Example of efficient specification.

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?

For a read-only data retrieval tool with 100% schema coverage, clear annotations, and no output schema, the description provides the essential scoping information (directory-level query) that the agent needs. The only minor gap is not stating that only one page is returned despite the pagination parameters, but the schema's 'Zero-based API result page' partially covers this. Adequate for the tool's complexity.

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 all 4 parameters are documented in the schema (url, page, limit, site_url). The description adds minimal new meaning beyond the schema — it clarifies that 'url' is a directory and 'site_url' must be verified via bing_list_sites (which is in the schema description). Baseline 3 is appropriate given the schema carries the heavy lifting.

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 the verb ('get'), resource ('Bing result page of index traffic details'), and scope ('URLs under a directory'), which clearly differentiates from siblings like bing_get_url_traffic_info (single URL) and bing_get_rank_and_traffic_stats. It's specific enough to establish purpose, though it doesn't explicitly contrast with the sibling 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 word 'official' and 'one...page' imply a single page fetchet rather than exhaustive pagination, and 'under a directory' clarifies scope. However, it doesn't explicitly say when to prefer this over bing_get_url_traffic_info or bing_get_page_stats, and doesn't describe exclusions or alternatives. Usage context is implied rather than stated outright.

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