frida_get_frontmost_application

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

No annotations are provided, so the description carries the burden of behavioral disclosure. It implies a read-only operation via 'Get' and explains the scope options and default device behavior, which is useful. However, it does not mention potential failure modes, prerequisites, or whether it can return null, leaving some behavioral aspects undisclosed.

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 concise and well-organized, with a clear title and an Args section that lists parameters with explanations. Every sentence serves a purpose, and there is no unnecessary information.

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?

The description is largely complete for a simple getter tool: it states the purpose, explains the parameters, and the output schema covers return values. However, it could mention prerequisites (e.g., a connected device) or edge cases (e.g., what happens if no frontmost app exists), so it is not fully comprehensive.

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 description clearly explains both parameters: device_id as the target device (with default if omitted) and scope as an enumeration with specific values ('minimal', 'metadata', 'full'). This adds substantial meaning over the sparse schema, which only lists the parameters as string/null without any explanation.

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 clearly states the tool retrieves details about the frontmost application, which is a specific and distinct resource compared to sibling tools like frida_ls_apps or frida_ps. The verb 'get' and the object 'frontmost application' make the purpose explicit and unambiguous.

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. The description only states what it does and lists parameters, with no context about appropriate use cases or exclusions.

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