Scored across 30 tools
The tools target largely distinct resource+action pairs (breakpoint control, tab/instance lifecycle, DOM interaction, observability). The only mild overlaps are stop_chrome vs close_instance and get_performance_metrics vs profile_page_performance, but descriptions clearly differentiate the destructive/scope differences. No tool appears to duplicate another's purpose.
Names overwhelmingly follow a consistent snake_case verb_noun pattern (set_breakpoint, list_tabs, open_instance, get_network_logs). A handful of single-verb names (resume, reload, navigate, scroll) deviate slightly but remain clear and readable.
At 30 tools this is on the heavy side, above the comfortable 15-tool range. However, the surface spans four genuinely distinct domains (instances, tabs, DOM/debugger, observability) plus two raw escape hatches, so most tools map to real capabilities rather than filler. Borderline but defensible.
Coverage is strong: instance open/stop/restart/close/list, tab open/close/switch/list, DOM inspection, click/fill/scroll, full debugger stepping and breakpoints, plus network/console/perf observability and CDP escape hatches. Minor gaps like dialog/file-upload/cookie handling remain, but core debug workflows are complete.