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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds useful pagination context (limit/offset) and names the returned fields, which goes beyond the annotations, but it says nothing about ordering, total counts, or rate/volume characteristics of an open-world search.

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?

A single sentence with no filler, front-loading the pagination behavior and the resource. It is efficient, though the return-field enumeration is arguably already covered by the output schema.

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 not be spelled out, and the description is adequate for a simple read-only search. The real gap is disambiguation from the many similarly named fingerprint search siblings, which the description never addresses.

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 does explain that limit/offset drive pagination, but adds nothing about the format or matching rules of the required 'library' and 'version' strings (exact match? case sensitivity?), which are the two parameters that determine the result set.

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 names a specific resource ('archived script fingerprints detected as one library version') and behavior ('Paginated list (limit and offset)'), so an agent can tell what it retrieves. However, it never differentiates itself from the near-identically named sibling 'search_js_fingerprint_by_library_version' or from 'search_jsfingerprints_by_library', so it falls short of a 5.

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?

There is no explicit when-to-use guidance and no mention of which sibling to pick instead. Given a sibling list containing several near-duplicate names (by_library, by_library_version, singular vs plural fingerprint tools), the description leaves the choice entirely to inference.

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