vulners_id

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

No annotations provided, so description carries the burden. It discloses free usage and no API key needed, but doesn't describe error handling (e.g., if ID not found) or rate limits. For a simple lookup, this is adequate but could be more complete.

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?

Two sentences, no filler. First sentence defines purpose, second adds important context. Ideal length for the tool's simplicity.

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?

Given the tool's simplicity (1 param, no output schema), the description covers key aspects: lookup action, ID types, and free usage. Lacks output description, but for a straightforward tool, it's nearly complete.

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 has 100% coverage for the single parameter 'id' with a description. The description adds concrete examples (CVE-2024-1234, EDB-ID:12345), enhancing understanding beyond the schema.

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?

Cleary states the tool's purpose: lookup a vulnerability/exploit by ID on Vulners. Specifies supported ID types (CVE, EDB, GHSA), differentiating it from sibling tools like vulners_search or vulners_exploit.

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?

Implicitly advises use when you have a specific ID. Mentions it's free and requires no API key, which helps in choosing it over potentially paid alternatives. No explicit exclusions, but context is clear.

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