Show Billing Period For Project

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

Annotations indicate the tool is read-only, idempotent, and non-destructive. The description adds minimal behavioral context, such as the endpoint and that it returns a JSON object, but does not contradict annotations. No annotation contradiction detected.

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 four sentences long. The first two sentences are somewhat redundant ('Return information...' and 'Use this to fetch...'). It includes technical details like the API endpoint. It is adequate but could be more concise.

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 read operation, the description covers purpose, required parameters, and API origin. However, it does not clarify that it returns a single billing period nor mention the pagination parameters (though those are in the schema). The misuse of 'Commitments' reduces clarity.

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 input schema has 100% coverage with descriptions for all four parameters. The description reiterates the required parameters and provides endpoint details but adds no new meaning beyond the schema. Baseline score of 3 is appropriate.

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 the tool returns information for a Billing Period, which aligns with the name and title. However, it incorrectly refers to 'Commitments' instead of 'Billing Period', which could cause minor confusion. Despite this, the verb 'Return' and resource 'Billing Period' are clear, and the tool is distinguishable from siblings.

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 usage by stating 'Use this to fetch the full details of a specific Commitments by its identifier.' It does not explicitly contrast with alternatives like list_billing_periods or provide when-not-to-use guidance. Usage is implied but not fully explicated.

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