Get multiple CVE summaries

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

Annotations already declare readOnly/idempotent/openWorld, so safety is covered; the description adds non-obvious behavior: identifiers are uppercased, de-duplicated, and only missing/stale entries are fetched (a cache-aware batch read). That is real value beyond the annotations, though it overlaps the output schema by naming the response fields.

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?

Three dense, front-loaded sentences with no filler; the batch limit and routing to nvd_get_cve come early. Minor redundancy in enumerating response fields (foundIds, missingIds, meta.*) that the output schema already exposes.

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?

With a complete input schema, an output schema, and rich read-only annotations, the description supplies the remaining essentials: batch cap, normalization/dedup semantics, cache behavior, and sibling routing. Nothing needed to invoke it 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 the single param already documents the 1-100 range, case-insensitivity, and de-duplication. The description restates the same normalization/limit facts rather than adding format or syntax detail beyond the schema, so baseline 3 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?

States a specific verb and resource with scope ('summaries for up to 100 CVE identifiers in one call') and explicitly routes the single-record case to nvd_get_cve, which lets an agent separate it from siblings without opening schemas.

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?

Names the alternative (nvd_get_cve for a full record) with the condition that selects it, giving clear batch-vs-single guidance. It stops short of addressing the other siblings (nvd_get_cve_summary, nvd_search_cves, nvd_search_cves), so no explicit exclusions beyond the one alternative.

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