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FXMacroData

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Policy-Rate Differential Visual Artifact

policy_rate_differential_visual_artifact
Read-only

Build a two-series chart comparing base and quote policy-rate history to visualize the rate differential setup for an FX pair. Access: requires an FXMacroData API key; an anonymous call returns subscription_required with a subscribe link.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
baseYesBase currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD.
quoteYesQuote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD.
end_dateNoInclusive upper bound, YYYY-MM-DD.
start_dateNoInclusive lower bound, YYYY-MM-DD.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD."
  2. Changed4 schema fields changed
    • removedInput schema / properties / base / title
      Removed value: -"Base"
    • removedInput schema / properties / end_date / title
      Removed value: -"End Date"
    • removedInput schema / properties / quote / title
      Removed value: -"Quote"
    • removedInput schema / properties / start_date / title
      Removed value: -"Start Date"
  3. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
  4. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
  5. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
  6. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."
  7. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."
  8. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."
  9. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
  10. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
  11. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."
  12. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  13. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  14. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  15. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  16. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, DKK, EUR, GBP, JPY, NZD, PEN, PLN, SEK, SGD, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, DKK, EUR, GBP, JPY, NZD, PEN, PLN, SEK, SGD, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  17. Added

TDQS

A3.8/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, openWorldHint=true, so the safety profile is covered. The description adds genuinely new behavioral context beyond the schema: the API-key requirement and the specific anonymous failure mode (subscription_required with a subscribe link), which an agent needs to handle errors correctly.

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, zero filler. The core purpose is front-loaded and the auth constraint follows as a separate, clearly delineated clause.

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?

For a 4-parameter read-only tool with full schema coverage and no output schema, the description covers purpose and the key auth/error behavior. The one gap is that it doesn't say what the artifact actually is (image, chart spec, URL) or how it is returned.

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 both currency parameters and the date bounds are fully documented in the schema. The description only restates that base and quote are involved and adds no format, case-sensitivity, or defaulting detail beyond what the schema already gives.

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

Purpose4/5

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

States a concrete verb and resource: building a two-series chart of base vs quote policy-rate history for an FX pair. It is clearly a visualization tool, which separates it from data siblings like rate_differentials, but it never names that sibling explicitly, so differentiation relies on inference.

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?

Usage is implied by the description (chart a rate differential for an FX pair) but there is no explicit when-to-use guidance, no condition telling the agent to pick this over rate_differentials or forex_visual_artifact, and no exclusions. The only prescriptive statement is the API-key prerequisite.

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

All FXMacroData toolsInspect
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