Create profile

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

Annotations declare readOnlyHint false and destructiveHint false, which align with the description's 'Create' action. The description adds context that the profile is a logical container for connected socials, providing some behavioral clarity beyond the annotations. However, it does not disclose side effects, permissions required, or whether the operation is reversible, but given the annotations already cover the safety profile, the bar is lower and a 3 is appropriate.

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, well-structured sentence that immediately conveys the core purpose without any fluff. It front-loads the action and resource, and the clarifying parenthetical adds value without redundancy. Every word earns its place, making it exceptionally concise and clear.

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's low complexity (only one parameter) and the presence of an output schema (which presumably documents the return value), the description covers the essential concept of what a profile is. It explains that it is a logical container, which is helpful for an agent to understand the abstraction. However, it leaves out details like whether username has any validation rules or if there are any side effects on connected socials, but these are minor for such a simple operation.

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 description coverage is 0%, and the description does not mention the 'username' parameter at all. While the parameter is simple (a string), the description provides no additional meaning, such as format, uniqueness constraints, or any examples. Since the schema itself only gives the type and required status, the description fails to compensate for the lack of coverage, resulting in minimal semantic enrichment.

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 action ('Create a new Upload-Post profile') and specifies the resource type. It distinguishes itself from sibling tools by naming a specific concept (logical container for connected socials), which is unique among the listed siblings. However, it could elaborate a bit more on what 'profile' entails beyond the container metaphor, so it does not reach a 5.

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 provides no guidance on when to use this tool versus alternatives, nor does it mention any prerequisites, exclusions, or conditions. While the name 'create_user' implies a clear use case, there is no explicit context about when not to use it or how it fits with related tools like 'list_users' or 'delete_user'. The description assumes the agent will infer usage from the name alone.

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