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petropt

petropt/petro-mcp

calculate_hydrate_temp

Estimate hydrate formation temperature using gas specific gravity and pressure via the gas-gravity method (Katz chart). Useful for predicting hydrate conditions in gas systems.

Instructions

Estimate hydrate formation temperature using gas-gravity method (Katz chart).

Args: pressure_psi: System pressure in psi. gas_sg: Gas specific gravity (air = 1.0, range 0.55-1.0).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pressure_psiYes
gas_sgYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations provided, so description carries full burden. It specifies input ranges (gas_sg 0.55-1.0) and method, but lacks details on accuracy, assumptions, or output format. Partial disclosure.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two concise sentences plus parameter descriptions. Purpose is front-loaded, no extraneous text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With a simple two-parameter input and an output schema (not shown), the description covers the essentials but omits usage context and limitations. Adequate but could include more behavioral notes.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, but description provides unit and range for gas_sg and unit for pressure_psi, adding significant meaning beyond the schema titles.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states 'Estimate hydrate formation temperature' with a specific method ('gas-gravity method (Katz chart)'), providing a distinct purpose among sibling tools.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like calculate_hydrate_inhibitor or other hydrate models. Does not specify prerequisites or conditions.

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

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