kj_to_calories_converter

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

No annotations are provided, so the description carries the full burden. It discloses the exact conversion constant (4.184), which is the core behavioral trait of this stateless pure-conversion tool. There are no side effects, auth requirements, or rate limits to disclose. It doesn't address edge cases (negative values, zero), but for a simple converter the disclosed constant is the key behavioral context.

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?

Two sentences with zero waste. The purpose is front-loaded and the conversion constant is a valuable addition. Every word earns its place; there is no filler or redundant restatement of the tool name.

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 single-parameter, no-output-schema converter, the description is nearly complete: it states the operation and the conversion factor, and the output unit (kcal) is implied by 'kilocalories'. It could explicitly state the return value or handle negative-input behavior, but nothing an agent strictly needs to call it correctly is missing for a tool this simple.

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 must compensate. It partially does: the first sentence and tool name imply the input is in kilojoules, and the conversion factor defines the math. However, it never explicitly documents the parameter's format, valid range, or units beyond inference from the name. The description adds some meaning but doesn't fully cover the single parameter.

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?

States a specific verb ('convert') and resource ('kilojoules to kilocalories'), which is unambiguous and distinct from the sibling calculators. The conversion factor (1 kcal = 4.184 kJ) reinforces the exact operation. No reasonable agent could confuse this with BMI or macro calculators.

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 usage context is implied: this is the only unit-conversion tool among the siblings, which are all health-metric calculators. However, the description never explicitly says 'use this when you need to convert kJ to kcal' or excludes alternatives like daily_calorie_calculator. The guidance is implicit from the name and nature rather than stated.

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