blood_alcohol_calc

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

With no annotations, the description carries the full burden of disclosing behavior. It only mentions cost, not how the tool calculates blood alcohol, what data it returns, or any side effects/constraints. This is completely opaque.

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 short but not appropriately concise because it omits essential information. The first sentence is a redundant repetition of the title, while the cost sentence is the only useful addition, but under-specification is not conciseness.

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 calculation tool, this description is grossly incomplete. It lacks any explanation of inputs, outputs, units, or limitations. With no output schema and no annotations, the agent has no way to correctly invoke or interpret results.

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 has one generic 'params' object with a tautological description ('Tool parameters as JSON object') and no specific fields. Although schema coverage is 100%, the description adds no meaning beyond the schema, leaving the actual required parameters undefined.

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 merely repeats the tool name 'blood alcohol calc' and adds a category label 'Other Utilities tool', which is essentially a tautology. It does not explicitly state what the tool calculates, what inputs it accepts, or what output it produces, failing to distinguish it from the many sibling utilities.

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?

There is no guidance on when to use this tool or when to prefer an alternative. The cost note is the only additional context, but there is no mention of use cases, prerequisites, or exclusions.

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