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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds genuinely useful context beyond that: it discloses the epistemic status of the output (causes are "possible, not certain") and that some things are explicitly reported as unverifiable ("what could not be checked"), which shapes how an agent should present results.

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, front-loaded with the resource and scope, then enumerating the return contents. It is long and clause-heavy but nearly every clause conveys payload information, so little is wasted.

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 no output schema, the description carries the burden of describing returns and does so by enumerating impact, cost, likely causes and unchecked items. What is missing is failure behavior, such as what happens for an unknown or expired issue_id, and any sense of response size or latency.

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?

There is a single parameter with 100% schema description coverage, so the schema already explains that issue_id is an alert id from list_alerts. The description adds nothing about the parameter's format or edge cases, so the 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?

"One watchdog alert in full" names a specific resource and scope (single alert, full detail), and the enumerated contents make it obvious this is a detail fetch rather than a list. It never explicitly names list_alerts as the sibling it contrasts with, so the differentiation is implied rather than stated.

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?

Usage is only implied: the phrase "in full" suggests use this when you need the complete record of one alert, and the id source is documented in the schema ("An alert id from list_alerts"). There is no explicit when-to-use / when-not-to-use guidance or direct routing to list_alerts.

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