google_set_account_labels

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

No annotations are present, and the description only restates the action without disclosing whether labels are replaced or merged, whether authentication is required, or what side effects occur. For a mutation tool, this is insufficient behavioral context.

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, focused sentence with useful examples and no wasted words. It is appropriately concise and front-loaded.

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 simple two-parameter tool, the description and schema cover the basic invocation, but important behavioral context is missing, such as whether setting labels replaces existing labels or adds to them. It is adequate but has clear gaps.

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 coverage is 100% for both parameters, so the description adds little beyond the schema. The example label values (personal, work, school) are a minor enhancement over the schema's 'Labels to set on the account'.

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 ('Set') and resource ('Google account') with concrete examples (personal, work, school). It clearly distinguishes this account-label tool from sibling Gmail label tools by emphasizing 'Google account' rather than message labels.

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 guidance on when to use this tool versus alternatives such as gmail_modify_labels or google_set_account_description. No prerequisites, exclusions, or context for choosing this tool over siblings are provided.

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