get_me_bookmarks_by_library_item_id

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds nothing beyond the endpoint and parameter, not even a note about what the response contains or if any side effects occur. Since annotations handle the safety traits, a baseline of 3 is appropriate; the description adds minimal behavioral context but doesn't contradict.

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 brief and front-loads the purpose, but it's under-specified rather than concise. The structure includes a vague 'Get me bookmarks' sentence, the endpoint, and an args list, but the wording is informal and lacks detail. It doesn't waste words, but it also doesn't earn its place with substantive content, so it's minimal but not well-crafted.

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?

Given the tool has an output schema (not shown) and a single parameter, the description should still explain the meaning of library_item_id and what bookmarks are returned. It does neither. With no overview of the return value or any constraints, and given that the sibling 'list_me_bookmarks' exists, an agent may not know what this specific tool returns. The description is insufficient for a complete understanding, though the simplicity keeps it from being a total failure.

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 0%, meaning the schema provides no documentation for the parameter. The description only says 'library_item_id: Path parameter', which adds no semantic meaning beyond the schema's type and requirement. It doesn't explain what the ID identifies, format expectations, or relationship to other bookmarks. With zero coverage and no compensation, this is a critical gap.

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 'Get me bookmarks' and provides the endpoint path with a library item ID, making it clear this retrieves bookmarks for a specific item. It is not a tautology and names the resource (bookmarks) and the filter (by library item ID). However, it doesn't explicitly differentiate from sibling 'list_me_bookmarks', which appears to list all bookmarks without the filter, so it's not fully distinguished.

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 on when to use this tool versus alternatives like 'list_me_bookmarks' or the bookmark creation/deletion tools. The description provides no context on appropriate use cases, prerequisites, or conditions that would select this over siblings. It simply presents the endpoint without any usage direction.

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