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

Annotations already declare readOnly, idempotent, closed-world, non-destructive, so the safety profile is covered. The description adds genuinely useful context beyond that: the project-API-key authentication requirement and the recommendation to use a restricted key scoped to this tool. It stops short of stating cost, rate limits, or what an empty/error result looks like.

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 dense sentence that front-loads the resource and the field breakdown, plus one short clause on auth. Every element (windowDays=30, non-archived, linked SmartTest) earns its place by disambiguating a metric; the phrasing is clunky but not padded.

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 read-only, two-parameter metric tool with no output schema, the description effectively serves as the return-value documentation by naming and defining each field. Auth and intended consumer are covered; only edge-case behavior (missing data, freshness beyond asOfMillis) is left implicit.

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 100% and both parameters carry their own detailed descriptions (botId from stored binding, projectApiKey constraint and 'never print it'). The description only restates the API-key requirement, adding no syntax or format detail, so the schema does the heavy lifting and 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?

The description names the resource (QA proof points) and enumerates exactly which metrics are returned, so an agent knows it is a read of specific scalar metrics rather than a generic posture report. It lacks a leading verb ("Get"/"Compute") and never contrasts itself with close siblings such as get-qa-posture or get-requirement-coverage, so differentiation must be inferred from the metric list.

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?

"for listings and Dealpuffin-style integrations" implies the intended context, and the note about a restricted key hints at the typical deployment, but there is no explicit when-to-use / when-not guidance and no named alternative among the many QA-reporting siblings. An agent can guess the fit but cannot rule out a better sibling from this text alone.

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