play_create_app_form

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

With no annotations, the description carries the burden and does well: it discloses that the tool opens a browser page rather than performing an API mutation, that it cannot itself create the app, and that it returns fill-in guidance. It omits prerequisites such as an authenticated console/browser session.

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?

Three tight sentences, purpose front-loaded, with the rationale following immediately. Efficient overall, though the second sentence could be compressed without losing the constraint.

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?

An output schema exists, so return values need not be explained, and purpose/behavior are covered. However, with 0% parameter coverage and no annotations, the description leaves both required inputs and any auth/browser-session requirements undocumented, which is a real gap for a tool an agent must invoke with the right values.

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% and the description never mentions package_name or suggested_name, so neither required parameter gains meaning beyond its bare name. The phrase 'returns what to fill in' hints at the output, not at what the inputs must contain.

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?

States a specific verb and resource ('Open the Play Console app list in the browser to create a new app') and explicitly frames it against the sibling Apple counterpart and the API-based alternatives by explaining the API cannot create a packageName. An agent can tell exactly what this does without opening the schema.

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?

Explains clearly when this is the right path: initial app registration must go through the console because the Google Play Developer API cannot create the packageName. It does not name any alternative tool explicitly, but the context makes the boundary between this and the API tools unambiguous.

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