compare_providers

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

With no annotations provided, the description must carry full burden. It explains the parameters and their defaults, but does not disclose behavioral aspects like idempotency, side effects, or any constraints beyond filtering. For a read-only query tool, this is minimally adequate.

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 concise, using one sentence to define the purpose, followed by a clear Args section and examples. Every sentence adds value without redundancy.

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?

While the tool is straightforward, the description does not mention the output format or structure, which could be important for an agent to interpret results. Given no output schema, this omission leaves some ambiguity.

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%, so the description is the sole documentation for parameters. It explains each parameter's purpose, allowed values (category: 'cloud' or 'saas', None for all), and defaults for dates, adding significant meaning beyond the bare schema.

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 it performs a side-by-side cost comparison across all configured providers, using a specific verb and resource. It distinguishes itself from sibling tools that focus on individual services or summaries.

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 explicit usage context through examples, such as comparing cloud or SaaS spend. However, it does not explicitly state when not to use this tool or suggest alternative tools for different needs.

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