Android Publisher Invoke

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does this well by stating that read methods run immediately and that mutating operations require a two-step confirmed write determined by the API's HTTP verb. It does not cover authentication, error handling, or rate limits, but the core safety-relevant behavior is explicitly 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 six short, front-loaded sentences, each earning its place: what the tool does, why it exists, when to prefer alternatives, and how read versus mutation behavior works. There is no redundant wording or filler.

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 generic escape-hatch tool with a rich output schema and fully described parameters, the description covers purpose, selection criteria, and the critical confirmation behavior for mutations. The only minor gaps are unmentioned concerns like authentication scope or behavior for invalid method paths, but these are less critical given the tool's generic nature and the presence of an output schema.

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 100%, so the baseline is 3. The main description adds useful context by explaining the confirmed-write flow, which helps an agent understand the confirm and confirmation_token parameters, but it does not need to restate the parameter details already present in the schema. The description's added value over the schema is moderate but not extensive.

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 states a specific verb and resource: 'Call any Android Publisher v3 method directly, by dotted path.' It clearly frames the tool as an escape hatch for unwrapped and future endpoints, and distinguishes it from dedicated sibling tools by saying 'Use this when there is no dedicated tool.' An agent can immediately tell what this tool is for and how it differs from the many wrapped tools.

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?

The description gives explicit routing guidance: 'Prefer the dedicated tools' and 'Use this when there is no dedicated tool.' It also explains behavioral conditions for choosing this tool, such as read methods running immediately and mutations requiring a two-step confirmed write. This is strong, actionable usage guidance.

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