sellfox_ads_portfolios

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

With no annotations and a one-line description, behavioral traits are entirely absent. The description does not indicate whether the tool is read-only, what happens if no portfolioId is provided, or any other behavioral details.

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 extremely brief (one phrase), which is concise but under-specified. It lacks structure and essential information, making it less helpful than a more complete description.

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 no output schema and a simple list functionality, the description should explain what the tool returns and how it behaves with or without the optional portfolioId. It does not, leaving the agent with insufficient information.

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% with descriptions for both parameters. The tool description adds no additional semantic value beyond what the schema already provides, so the baseline score of 3 applies.

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 'Ad portfolio list' which clearly indicates the tool lists ad portfolios. However, it does not distinguish this from sibling tools like sellfox_ads_sd_campaigns or sellfox_ads_sp_campaigns, which are also listing operations but for different entities.

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 is provided on when to use this tool versus alternatives. There is no mention of prerequisites or scenarios where this tool is appropriate, leaving the agent without decision support.

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