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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds useful context by explaining what kinds of gaps exist and that the result is meant to be picked from for research, but it does not mention ordering, pagination, limits, or what the response contains.

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 compact and front-loads the category breakdown. It is slightly cryptic but wastes little space; 'Pick one to research' adds a small amount of useful orientation without bloat.

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 low-complexity, two-parameter, read-only listing tool, the description gives enough conceptual context to understand what open holes are. It remains incomplete on parameter behavior, especially the limit, and on return shape or ordering, which matters for an agent choosing how to invoke it.

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 the description must compensate. It partially maps the 'kind' enum values through phrases like 'registry numbers with no entry' and 'entries with no tier,' but the 'limit' parameter is entirely unmentioned and the mapping is left implicit rather than tied to the parameter name.

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 identifies the resource as 'Gaps the Parse knows it has' and enumerates three gap categories, so the broad purpose is inferable. However, it never plainly says this lists/fetches open holes, and the jargon makes the verb/resource relationship less clear than a simple 'List open gaps of type…' would.

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 only usage direction is the vague 'Pick one to research,' which implies the tool returns items to choose from. There is no explicit when-to-use guidance, no mention of how this differs from siblings like parse_search or parse_read_record, and no stated preconditions.

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