explore_census_geographies

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

No annotations are provided, so the description carries the full transparency burden. It discloses the data source (public-domain US Census Bureau data) and describes the output (geography levels and counts), implying a read-only operation. It does not explicitly state side-effect safety or return format, but the simplicity and list semantics make this adequate.

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 exactly two sentences: the first states the core purpose, the second adds usage guidance and source. Every sentence earns its place, with no redundancy 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 simple, parameterless discovery tool that outputs a list of levels and counts, the description is complete. It tells the agent what the tool returns, when to use it relative to a sibling tool, and provides source context. An output schema exists, so detailed return value documentation is unnecessary.

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?

The tool has zero parameters, and the input schema is empty, so parameter-level documentation is unnecessary. With schema coverage at 100% and no parameters to describe, the baseline of 4 applies.

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 tool lists available US Census geography levels and the number of places at each level. It uses a specific verb (List) and resource (US Census geography levels), and distinguishes from sibling search_census_places by framing itself as a discovery step.

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 explicitly says 'Use this first to discover what levels exist before calling search_census_places', providing direct when-to-use guidance and naming an alternative to avoid.

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