app_list

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

The readOnlyHint=true annotation declares the operation safe, and the description aligns with that. However, the description adds only the vague qualifier 'bounded' without explaining what it means or how filters (system, enabled, etc.) affect the result. No meaningful behavioral context beyond the annotation is disclosed.

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?

The description is a single sentence, making it concise in length, but it is under-specified rather than efficiently informative. The term 'bounded' adds ambiguity without earning its place, and the structure lacks both clarity and precision.

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 list tool with no output schema and five optional filters, the description is too sparse. It does not explain the return format, the meaning of 'bounded', or how the boolean filters are applied. The readOnlyHint annotation helps, but the overall completeness is low.

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?

The input schema has five parameters with zero descriptions, and the tool description does not mention any of them. The word 'bounded' might hint at a limit, but it is insufficient to convey the semantics of the boolean filters (system, enabled, disabled, third_party). Schema coverage is 0%, and the description fails to compensate.

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 uses a specific verb 'List' and identifies the resource as 'package metadata' from the selected device, making the primary purpose clear. It distinguishes from siblings like app_info (single app) and device_info (device-level info), though the term 'bounded' is ambiguous.

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?

No guidance is provided on when to use this tool versus alternatives. Sibling context suggests it is for enumerating installed packages, but the description itself does not state use cases, exclusions, or prerequisites like needing a selected device.

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