sheets_append_values

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

No annotations are provided, so the description carries full burden. It only states the basic action without disclosing behaviors such as mutation effects, row insertion details, or what happens if the range doesn't exist. The description is too brief to provide meaningful transparency.

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 extremely concise (one short sentence), but this conciseness sacrifices necessary detail. While there is no wasted text, the minimalism leaves gaps in context and parameter meaning.

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?

Given the lack of annotations, no output schema, and the presence of several sibling tools, the description is insufficient. It does not explain return values, handling of out-of-range inputs, or how the append operation integrates with the sheet's existing data.

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 50% (2 of 4 parameters have descriptions). The tool description adds no explanation for 'spreadsheetId' or 'range', which are left to the schema's placeholder type 'string'. The description fails to compensate for the missing param docs.

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 action ('Append rows') and resource ('Google Sheet range'), effectively distinguishing it from sibling tools that have different verbs like 'add', 'clear', 'update', etc.

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 append versus alternatives like sheets_update_values. The description does not specify prerequisite conditions or suggest sibling comparisons, leaving the agent to infer usage without help.

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