Each tool has a reasonably distinct job: catalog_summary gives counts, list_models enumerates models, and inspect_model drills into one model's blueprint. The only fuzzy pairs are list_models vs inspect_model (depth vs enumeration) and measure_lineage vs source_impact (both lineage, but scoped to measures vs upstream sources), and the descriptions clarify both well enough.

All names are snake_case with a uniform pbi_ prefix and use domain vocabulary consistently. There is a minor deviation between verb-first names (pbi_list_models, pbi_inspect_model, pbi_generate_portal) and noun-first names (pbi_catalog_summary, pbi_measure_lineage, pbi_health_audit, pbi_source_impact), but the pattern remains readable and predictable.

Eight tools is a well-scoped set for a Power BI documentation/lineage server, with each tool covering a distinct read or generate capability. Nothing feels redundant or padded.

The surface covers discovery, inspection, DAX/M search, lineage, impact analysis, health auditing, and portal generation, which is strong coverage for documentation workflows. Minor gaps exist: no standalone report or workspace listing (reports appear only as downstream entities), no per-model export, and no tool to trigger a catalog scan/refresh.