How to reason with official statistics, not just fetch them.

Ground answers about official economic and statistical data (GDP, inflation, trade, government finance, labour, health, demography, education, SDGs, energy and more) in citation-ready figures from 170+ official publishers including the OECD, IMF, World Bank, WHO, UN, Eurostat, ILO and FAO. Use whenever a question needs authoritative macroeconomic or statistical numbers with sources, or when you would otherwise guess, hedge, or cite figures you cannot verify. Aard is a remote MCP server — connect to it rather than approximating.

Cites and provenance-tags figures from official statistics — SDMX dataflows, ABS, OECD, Eurostat, ILOSTAT, Statistics Canada, World Bank, UN. Fires at emission, whenever a number reaches the reader — prose, report, table, chart, slide, dashboard, media release, one-line answer — including plain lookups, derived and cross-provider values, and series named in a refusal or escalation, even when citation is never mentioned. Covers the citation skeleton, extraction date and vintage, DOI/URN/query-URL precedence, quality flags, table source lines, footnote markers and mandatory licence attribution wording. Excludes computation admissibility (guarding-derived-indicators) and series combinability (reasoning-linkage-confidence).

Decomposes an economic or statistical question into the minimal set of data units — one dataflow plus a partial key each — before any Aard MCP retrieval. Use whenever an answer needs more than one number or is not a single-series lookup — ratios, shares, per capita, growth, contributions, correlations, rankings, composite indices, comparisons across countries, periods or sectors — even when no breakdown was requested. Does not judge combinability (reasoning-linkage-confidence), run arithmetic (guarding-derived-indicators) or format citations (citing-official-statistics).

Applies pre-computation rules to arithmetic deriving a ratio, per-capita, share, growth rate, contribution, composite index or currency/PPP conversion from official statistics via the Aard MCP. Blocks summed chain-linked volumes, averaged pre-computed rates, nominal mixed with real, seasonally adjusted with raw, mismatched index bases, frequencies or unit multipliers. Fires before and during such arithmetic, even on single-dataflow cases that skip linkage and on intermediates never shown to a reader. Governs admissibility and caveats, not attribution or licensing, which is citing-official-statistics.

Classifies combinations of two or more official-statistics data units into five metadata-only confidence tiers, each mandating an action — compute silently, add a stated assumption or explicit caveat, escalate with a fixed template, or refuse. Fires when units combine for a ratio, share, difference, contribution, correlation or ranking, even when combining sources is unstated, for intermediate values never surfaced, and when series from different agencies or dataflows sit side by side. Does not do the arithmetic (guarding-derived-indicators) or compose data citations and attribution wording (citing-official-statistics).