Most tools have clearly distinct purposes: status is an overview, list_log_sources discovers sources, tail_log reads raw lines, and get_fatal drills into one fatal group. The only potential confusion is between list_errors (grouped errors from a log source) and list_recent_fatals (grouped captured fatals), but their descriptions and required inputs make the boundary reasonably clear.

Five of six tools follow a clear verb_noun or list_* pattern (list_log_sources, list_errors, list_recent_fatals, tail_log, get_fatal). The bare noun 'status' is a minor deviation, though it reads naturally as an overview entry point.

Six tools is well-scoped for a read-only fatal-error and log diagnostics server. Each tool serves a distinct step in the workflow (overview, source discovery, raw tail, grouped errors, grouped fatals, fatal detail) with no obvious padding.

The surface covers the core diagnostic lifecycle: status, source discovery, raw log reading, grouped error listing, grouped fatal listing, and fatal detail. Minor gaps exist—there is no detail tool for an individual non-fatal error group and no explicit way to acknowledge or clear errors—but agents can work around these with the existing tools.