Each tool targets a distinct interaction (keyboard input, mouse scroll/drag, click tap, screenshot capture, device listing), so selection is generally clear. The main overlap is `adb_command`, a generic escape hatch that can replicate every other tool's function (e.g. `shell input tap`, `shell screencap`, `devices`), though this is an intentional, documented fallback rather than true ambiguity.

Five tools are single lowercase words (keyboard, mouse, devices, screenshot, click) while `adb_command` uses a snake_case namespace prefix, and the set mixes nouns (devices, screenshot) with a verb (click) and input-device names (keyboard, mouse). It is readable and loosely noun-oriented, but there is no predictable verb_noun or resource pattern an agent can rely on.

Six tools is well-scoped for a focused Android-device-control server: discovery, three input primitives, capture, and a raw escape hatch. Each tool earns its place without redundant wrappers or an oversized surface.

The surface covers the core interaction loop (find device, see screen, tap/drag/scroll, type) and `adb_command` closes arbitrary gaps like app install, UI hierarchy dumps, or device connect/restart. Minor gaps remain: no dedicated swipe/fling or long-press tool, and no built-in wait-for-UI or clipboard operations, though all are reachable through `adb_command`.