Most tools are clearly distinct by resource and action, but the result-related tools (testrail_get_results, testrail_get_results_for_case, testrail_get_results_for_run, testrail_add_result, testrail_add_result_for_case, testrail_add_results, testrail_add_results_for_cases) have subtle differences that may cause confusion. The bulk vs single and for_case vs for_run distinctions are not immediately obvious from names alone.

All tools follow a consistent pattern: testrail_<verb>_<resource> (e.g., testrail_get_project, testrail_add_case). The prefix is uniform, verbs are consistent (get, add, update, delete), and resources are clear. Minor variations like 'get_results_for_case' are still predictable.

25 tools is on the higher end and might feel heavy, but it covers a broad domain (projects, cases, runs, results, sections). However, some tools could be consolidated (e.g., result retrieval and addition variants) to reduce redundancy. The count is borderline but justified by the comprehensive CRUD operations.

The surface covers core entities (projects, cases, runs, results, sections) with full CRUD for cases, runs, and sections. However, projects only have get operations (no create/update/delete), and there is no tool for retrieving a single test result by ID. These are minor gaps that agents can work around by using list operations.