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Tool purposes are mostly clear due to transport prefixes and distinct verbs, but a few pairs blur boundaries: ssh_shell_open vs ssh_shell_login/serial_shell_login are convenience wrappers around open, and adb_exec vs adb_shell_exec differ only in whether a persistent session is used. The detailed descriptions help resolve these, so the overlap is manageable but not zero.

The core convention is [transport]_[action] (e.g. ssh_shell_exec, serial_exec, adb_shell_open), but it is applied unevenly: serial_open/serial_close lack the 'shell' segment used by ssh_shell_open/adb_shell_open, adb_exec sits alongside adb_shell_exec with a different implication, and several tools use a _tool suffix (version_tool, port_scan_tool, greet_tool) while others do not. Still readable, but the conventions are mixed.

At 38 tools, this exceeds the 25+ heavy threshold. The count is inflated by triplicating nearly identical session operations across SSH, serial, and ADB, plus a set of one-off utility tools; while systematic, it creates real selection overhead for agents.

The toolkit provides comprehensive lifecycle coverage for SSH, serial, and ADB sessions (open/read/write/exec/close), file transfer in both directions, U-Boot control, and environment metadata. Minor gaps exist—ADB file transfer is only available via generic adb_exec, and there is no dedicated reboot/port-forwarding tool—but these are workable without dead ends.