Defectbird: the site's own MCP server — dataset; every answer cites the site.
Scored across 7 tools
Each tool has a distinct type of access: schema, provenance, exact row lookup, substring search, multi-value comparison, statistics, and top/bottom ranking. dataset_row and dataset_compare are somewhat related, but the descriptions make the intended use clear.
All tools use a consistent dataset_ prefix followed by an operation noun or verb such as columns, compare, search, stats, and top. The naming pattern is predictable and makes the tool purpose easy to infer.
Seven tools is well-scoped for a single-dataset query server. Each tool covers a distinct data access need without redundancy or bloat.
The set covers schema discovery, provenance, exact lookup, substring search, comparisons, statistics, and top/bottom ordering, which covers most dataset Q&A workflows. There is no general-purpose filter or pagination tool, but the provided operations form a coherent query surface.
The columns, which of them are numeric, the row count and the provenance banner of the Defectbird dataset. Call this first to learn the schema.
Inputs: no named parameters.
The rows of the Defectbird 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 Defectbird dataset. Read this to attribute a figure correctly.
Inputs: no named parameters.
The rows of the Defectbird dataset where a column equals a value exactly (case-insensitive).
Inputs: value (required), column (required).
Rows of the Defectbird 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 Defectbird dataset (grouping commas and currency are handled; non-numeric rows are excluded and counted).
Inputs: column (required).
The highest (or lowest) rows of the Defectbird 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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