search_jobs, list_sources, and analyze_work_authorization are clearly distinct, but get_job_details explicitly includes work-authorization analysis, which overlaps with the standalone analyze_work_authorization tool. The latter's ability to accept arbitrary text gives it a separate use case, so the boundary is discernible but not perfectly clean.

All four tools follow a consistent snake_case verb_noun pattern (search_jobs, get_job_details, analyze_work_authorization, list_sources). No mixed conventions or vague verbs.

Four tools is a well-scoped surface for a focused, read-only job search server, and each tool covers a distinct step (find, inspect, classify sponsorship, check sources). Nothing appears redundant or padded.

The core read-only workflow—search, detail retrieval, sponsorship analysis, and source health—is covered with no dead ends for the stated purpose. Minor gaps exist around richer filtering/pagination or cross-source deduplication, but these are workarounds rather than blockers.