Control Android app

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare destructiveHint=true, openWorldHint=true, readOnlyHint=false, so the safety profile is covered structurally. The description adds nothing beyond that – it does not say which action destroys data (clear?), whether stop affects running state vs data, or what device targeting requires. It does not contradict the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

A single front-loaded sentence with no filler; the action list leads. It is efficient, though arguably too terse for a 7-parameter destructive tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a destructive, multi-parameter Android control tool with no output schema and 0% parameter coverage, the description is far too thin. An agent cannot know how to select a device, what activity/deepLink do, or what clear actually removes.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description carries the burden, but it only loosely echoes the action enum values (start/stop/clear). Six parameters – serial, activity, deepLink, deviceId, deviceName, packageName – are undocumented in both schema and description, giving no guidance on device selection vs package targeting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names specific verbs (start, stop, clear) and a specific resource (Android package), so the function is unambiguous. However, it does not differentiate from close siblings like adb_install, adb_uninstall, or adb_packages, leaving the agent to infer when this tool is preferable.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no explicit when-to-use or when-not-to-use guidance and no reference to alternatives such as adb_install/adb_uninstall. The agent gets no signal about prerequisites (e.g., which action is reversible) or which sibling to prefer.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.