get_data_info

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

No annotations provided, so description carries full burden. Describes return of overview, variable details, and optional head rows filtered by vars. Lacks details on side effects, permissions, or performance, but is standard for a read-only info tool.

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?

Two sentences, no redundancy. First sentence defines function, second adds returns and usage guidance. Efficiently conveys essential 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?

Output schema exists, so return values are covered. Description mentions overview, variable details, head rows. Missing encoding parameter explanation, but overall complete for an info tool. Siblings unrelated.

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%, so description must compensate. It mentions 'filtered by requested variables' for vars_list and 'optional head rows' for head, but does not explain data_path or encoding. Partial coverage, missing half of parameters.

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?

Description clearly states specific verb ('Get descriptive statistics and a data preview') and resource ('data file dta, csv, xlsx'). Returns overview and variable details. Sibling tools are unrelated, so no differentiation needed.

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?

Explicitly says 'Use when you need to understand a dataset or have no prior knowledge of the data.' No exclusions or alternatives mentioned, but siblings are distinct, making guidance adequate.

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