vulnerabilities

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 that the result is a summary comprising severity, top CVEs, and packages, which is modest but genuine context; it says nothing about defaults, result limits, or how 'top' CVEs are ranked or truncated.

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?

One tight sentence with the subject front-loaded and the filter clause trailing, which is the right order. No padding, though the parenthetical list is dense and abbreviaton-heavy.

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 4-parameter tool with no output schema and 25% schema coverage, the description should explain the unexplained 'size' parameter and sketch the return structure or truncation behavior. It also gives no route to sibling tools, so an agent lacks enough to call it confidently or to know when it is the wrong choice.

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 only 25% (only env is documented, pointing at list_environments). The description recovers meaning for agent and severity by declaring them optional filters, but 'size' is left entirely unexplained in both schema and description, and it is unclear whether it bounds results, CVEs per package, or pages.

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 phrase 'Vulnerability state index summary (severity, top CVEs, packages)' identifies the resource and roughly what comes back, so an agent knows it is a vulnerability-oriented summary rather than a raw alert search. However, there is no action verb and no explicit differentiation from siblings such as aggregate_alerts or search_alerts, and 'state index' is unexplained jargon.

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 signal is 'optional agent/severity filter', which hints at narrowing scope but never says when to choose this tool over search_alerts or aggregate_alerts. No prerequisites, no exclusions, and no guidance on when the unfiltered call is appropriate.

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