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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile is covered. The description adds real value by disclosing response composition (plain-language narrative, per-layer evidence with example trace ids, correlated deploys), which is beyond annotations. It says nothing about not-found behavior, permissions, or payload size.

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 front-loaded sentence with a compact enumerated list of returned content; no filler. The colon-separated list is dense but readable and puts the subject first.

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 does carry the burden of explaining returns and does so adequately. But for a tool whose required argument is an opaque id, it omits how to discover that id or what happens on an unknown id, leaving a practical gap before invocation.

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 50%: project carries a description, but incident_id is a bare string. The description never mentions incident_id, its format, or where to obtain it, so it fails to compensate for the coverage gap. Project scoping is likewise left entirely to 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?

It states the resource (one incident) and enumerates precisely what the response contains: what happened, impact, next steps, timeline, per-layer evidence with trace ids, and nearby deploys. That is far more specific than a title restatement and implicitly separates it from relia_list_incidents. It never uses an explicit retrieval verb or names a sibling, so it stops short of a 5.

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?

There is no guidance on when to call this versus relia_list_incidents (to find an id) or relia_trace / relia_changes (to drill into evidence). Nothing says where an incident_id comes from, nor are any exclusions or prerequisites given.

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