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tresor4k

macalc

calculate_bra_size_convert

Convert your bra size between FR, US, UK, and EU sizing systems. Enter band size, cup letter, and source system to get equivalents in all four systems.

Instructions

Convert bra size between FR, US, UK and EU systems. Returns: {FR, US, UK, EU}. See list_bundles for related 'textile-mode' calculators.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
band_sizeYesBand size in source system (numeric)
cupYesCup letter (A, B, C, D, DD, E, F)
from_systemYesSource sizing system

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultNoComputed result. Object whose fields depend on the tool (e.g. {tax, marginal_rate, brackets} for tax tools, {volume_l, gallons} for volume tools).
formulaNoHuman-readable formula or method used (e.g. "I=P·r·t", "Magnus formula").
sourceNoAuthoritative source for the rule or formula (e.g. "Article 197 CGI", "NF DTU 21").
reference_urlNoLink to a calcul2 page documenting the calculation in detail.
Behavior2/5

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

No annotations provided; description carries full burden. It does not disclose behavioral traits such as read-only nature, required permissions, error handling, or side effects. The return type is hinted but not structured.

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 sentences, no redundancy. Front-loaded with purpose and return format. Every sentence earns its place.

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?

Covers conversion purpose and return, but lacks details on conversion logic, edge cases (e.g., non-standard cups), or differentiation from sibling calculate_bra_size. Given no output schema, more context could help.

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

Parameters3/5

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

Input schema covers all 3 parameters with descriptions (100% coverage). The description adds no extra meaning beyond the schema, so baseline score of 3 is appropriate.

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?

Clearly states the verb 'convert' and the resource 'bra size' among FR, US, UK, EU systems. Specifies the return format as an object with system keys. Distinguishes from sibling calculators by mentioning related 'textile-mode' calculators.

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

Usage Guidelines3/5

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

Provides a brief reference to related calculators via list_bundles, implying a grouping. However, it lacks explicit guidance on when to use this tool versus alternatives (e.g., calculate_bra_size) and no prerequisites or exclusions.

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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