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

Annotations already declare readOnly and openWorld, so the bar is lower, yet the description adds real behavioral context: data provenance ('as published by each office in TMview'), a legal/coverage disclaimer, and precise billing behavior ($0.002 per successful call via x402, failed calls not charged). It does not mention rate limits or latency, but the paid-call semantics are disclosed clearly.

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?

Purpose is front-loaded in the first clause, followed by field coverage, search mode, provenance disclaimer, and pricing in a compact run-on. The dense list of data fields is slightly list-like but every element is informative; nothing is redundant padding.

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?

An output schema exists, so return values need no explanation, and pricing plus data-provenance caveats are covered. For a read-only open-world search tool this is nearly complete; only rate limits, result caps, or freshness/latency expectations are unaddressed.

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%, so all four parameters are documented in the schema, making the baseline 3 appropriate. The description corroborates the key semantics ('name-contains search, optional office filter') but adds no format or syntax detail beyond what the schema already provides.

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?

Opens with a specific verb+resource ('Trade mark search across TMview') and scopes it precisely to the TMDN network with 70+ offices. It enumerates retrievable fields and search mode, so the agent knows exactly what it does. It does not explicitly differentiate itself from the sibling gov_ip_australia_trademarks, even though it lists AU among covered offices.

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?

'Name-contains search, optional office filter' implies usage, and 'not a full clearance search' is a genuine usage caveat that tells the agent not to treat results as exhaustive. However, there is no explicit when-to-use guidance relative to the national trademark sibling (e.g., prefer the Australia-specific tool for deep AU coverage).

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