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

The annotations already declare readOnlyHint=true, and 'Read-only' merely restates that, earning no credit. However, with no output schema the description usefully enumerates the return payload (CVE, CISA KEV/EPSS, occurrences with cluster/namespace/workload/image/installed-vs-fixed, disposition policies), which is genuine behavioral context.

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, zero waste: the content enumeration is front-loaded and the id-discovery routing follows. The trailing 'Read-only' is minor redundancy against the annotation but does not bloat the text.

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 single-get tool with no output schema, the description adequately explains what is returned, and safety is covered by annotations. It omits what happens when the id is unknown/invalid, which is a small gap rather than a blocking one.

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 finding_id parameter is fully documented in the schema ('Finding id (UUID) from list_security_findings'). The description's id-discovery sentence largely duplicates the schema, so the baseline 3 is appropriate.

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+resource ('One security finding in full') and immediately scopes what 'in full' means: CVE exploitation intelligence, every occurrence, and matching disposition policies. It is clearly distinguishable from the sibling list_security_findings, which returns many.

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?

Explicitly tells the agent how to obtain the required id ('Discover finding ids with list_security_findings'), which is real routing guidance. It stops short of stating when not to use it versus other security detail tools (e.g. get_security_advisory, list_security_finding_occurrences).

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