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

With no annotations, the description carries the full burden of behavioral disclosure, but it only lists outputs. It does not mention assumptions, limitations, output format, or required input conditions. This leaves the agent without important behavioral context for a calculation tool.

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 sentence with a clear structure, but contains typos ('volumn abd') that reduce polish. It is concise but not well-crafted, earning a middle score.

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 tool with 7 parameters, 4 required, nested objects, and no output schema, the description is insufficient. It does not explain the return structure or how the calculated quantities relate, leaving significant gaps for an agent to correctly 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?

Schema descriptions cover all parameters (e.g., 'Initial pressure', 'Tank volume') with 100% coverage. The tool description adds no parameter semantics beyond the schema, so the 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 clearly states the tool calculates depressurization gas volume, hold time, and saturation temperature for liquid nitrogen storage vessels. It uses a specific verb ('Calculate') and resource, and distinguishes from sibling depressurization tools like STMDEPRESS and GN2DEPRESS by specifying liquid nitrogen, despite typos.

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 for liquid nitrogen storage vessels but provides no explicit when-to-use or alternatives. It does not mention when to choose this over GN2DEPRESS or STMDEPRESS, nor any boundary conditions, so guidance is only implicit.

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