Lobbyvo: the site's own MCP server — dataset; every answer cites the site.
Scored across 7 tools
Most tools have clear distinct purposes: schema, provenance, stats, top, and search are unambiguous. However, dataset_compare and dataset_row overlap somewhat since both retrieve rows based on column values, though compare's multi-value/ordering behavior helps distinguish them.
All tools share a consistent dataset_ prefix and use lower_snake_case, making the family easily recognizable. The second part is a mix of nouns (columns, provenance, row, stats) and verbs (compare, search, top), so the pattern is not perfectly uniform but remains predictable.
Seven tools is a well-scoped set for exploring a single dataset. Each tool covers a distinct common operation without excessive fragmentation or unnecessary overlap.
The surface covers the essential read-only dataset exploration workflow: schema inspection, provenance, exact lookups, substring search, comparisons, numeric statistics, and top/bottom ranking. A minor gap is the absence of a distinct-value listing or pagination mechanism, but agents can work around this with existing tools.
The columns, which of them are numeric, the row count and the provenance banner of the Lobbyvo dataset. Call this first to learn the schema.
Inputs: no named parameters.
The rows of the Lobbyvo dataset whose column is any of the given values, in the order given — for "X vs Y" questions.
Inputs: column (required), values (required).
The source, the date it was computed, the licence and the citation for the Lobbyvo dataset. Read this to attribute a figure correctly.
Inputs: no named parameters.
The rows of the Lobbyvo dataset where a column equals a value exactly (case-insensitive).
Inputs: value (required), column (required).
Rows of the Lobbyvo dataset whose cells contain the query (case-insensitive), up to 50.
Inputs: query (required), limit.
count, min, max, mean, median and sum of a numeric column of the Lobbyvo dataset (grouping commas and currency are handled; non-numeric rows are excluded and counted).
Inputs: column (required).
The highest (or lowest) rows of the Lobbyvo dataset by a numeric column — "which is the most/least X".
Inputs: column (required), limit, ascending.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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