Create a bookmark

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

Annotations already convey that this is a write operation (readOnlyHint=false) and non-destructive (destructiveHint=false). The description adds the behavioral nuance that the bookmark 'can be pushed into browser profiles', which is useful context. However, it does not disclose return values, side effects, or permission requirements, so it only partially supplements the annotations.

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, front-loaded sentence that conveys the tool's core purpose without any unnecessary words. 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?

For a simple create tool, the description is adequate but minimal. It does not explain what 'pushed into browser profiles' entails, what the response will be (no output schema exists), or how it relates to other bookmark/profile tools. The schema covers the parameter structure, but behavioral context is thin, leaving some gaps.

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%, and the description provides no parameter explanations. While the schema reveals types, defaults, and enums (e.g., mainWebsite), the description does not clarify the meaning of parameters like 'mainWebsite' or 'sharedToEntireTeam' in relation to the 'pushed into browser profiles' behavior. The description fails to compensate for the low coverage.

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 uses a specific verb-resource pair ('Create a bookmark') and adds a distinguishing nuance ('can be pushed into browser profiles'), which clearly differentiates it from sibling tools like list_bookmarks, update_bookmark, and delete_bookmarks.

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 the tool is for creating bookmarks, and the 'pushed into browser profiles' context hints at its purpose. However, it does not explicitly state when to use this tool versus alternatives, nor does it mention any exclusions or prerequisites. This is implied usage rather than explicit guidance.

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