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

Annotations already declare readOnly, idempotent, non-destructive, open-world behavior, so the safety profile is covered. The description adds genuine value beyond that by disclosing the fallback behavior: returns matching FAQ answers and article links, or a pointer to guides when nothing matches. It does not discuss confidence thresholds or result ranking, which keeps it short of a 5.

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?

Front-loaded with the purpose, then the topic enumeration, then the exclusions — a logical order with no filler. The topic list is long, but each item earns its place by disambiguating routing; a mild trim would make it a 5.

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?

There is no output schema, yet the description explains what is returned (FAQ answers, article links, or a pointer to guides), so the agent knows the shape of a success and a no-match result. Combined with explicit sibling exclusions, nothing needed to call this correctly is missing.

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% and there is only one parameter, so the baseline is high. The description still adds meaning by enumerating the question categories the parameter should express (solicitation letters, foreign LLCs, theatrical exemption, etc.), effectively constraining what a valid question looks like.

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?

States a specific verb (answers) and resource (a specific NY LLC publication question), and enumerates the covered topic space so the agent knows the domain boundary. It explicitly names the sibling tools it is not, making differentiation unambiguous.

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?

Gives both sides: the topics this tool is for, and an explicit 'Do NOT use for...' list mapping each excluded case to the correct sibling tool (pricing, county info, process guide, requirements). An agent can route correctly without inspecting other schemas.

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