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tresor4k

macalc

calculate_inflation_adjusted_value

Compute the real purchasing power of a future amount in today's euros by adjusting for inflation. Input nominal amount, years, and annual inflation rate to see what that future sum is worth now.

Instructions

Compute real (inflation-adjusted) purchasing power of a future amount. Use for retirement or savings goal in today's euros. Inputs: nominal future amount, years, average inflation %. Returns real value. See list_bundles for related 'finance-universal' calculators.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
amountYesAmount in EUR
yearsYesNumber of years
inflation_rateYesAnnual inflation rate percent

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.
Behavior3/5

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

No annotations provided, so the description carries full burden. It states 'Returns real value' but does not disclose any side effects, permissions, or limitations. For a calculation tool, minimal behavioral disclosure is acceptable, but more detail on the output meaning would improve transparency.

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

Conciseness4/5

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

The description is three sentences, front-loading purpose and usage. It is concise with no redundant words, though it could be slightly more structured (e.g., list inputs).

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

Completeness4/5

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

The description explains the purpose, use case, and inputs. It mentions the output (real value) and directs to related tools. For a 3-parameter calculation tool, this is sufficient, though more precision on what 'real value' means (e.g., base-year euros) would enhance completeness.

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?

Schema description coverage is 100%, so baseline is 3. The description restates inputs ('nominal future amount, years, average inflation %') but adds no new meaning beyond the schema. No examples, units (aside from 'EUR' in schema), or constraints are given.

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?

The description clearly states the tool computes inflation-adjusted purchasing power and specifies a use case (retirement/savings goal in today's euros). This distinguishes it from siblings like calculate_inflation_adjustment and future value calculations.

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

Usage Guidelines4/5

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

The description explicitly says 'Use for retirement or savings goal in today's euros' and points to list_bundles for related calculators. However, it does not explicitly state when not to use it or compare to direct alternatives.

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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