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

Annotations already establish readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds genuinely non-obvious context beyond that — the per-call cost of 5 prepaid credits and a production billing requirement — which an agent should factor into invocation, but it says nothing about what the scored output looks like or whether results are ranked.

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 with no filler: the capability comes first and the commercial constraint second. The billing clause is terse and front-loaded with 'PAID ONLY', though it sits at the same level of emphasis as the core description rather than being visually separated.

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-parameter tool with no output schema, the description covers the input concept and the cost gate but omits the return shape entirely — an agent does not know whether it receives per-task scores, a ranked ordering, or both. Combined with the undocumented array item structure, this leaves real gaps for a billing-gated tool.

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 0% and the sole parameter 'tasks' is an untyped array with no item schema, so the description carries the burden. It partially pays that off by naming the four values each task must supply, but it does not state key names, types, ranges, or whether all four are mandatory per item.

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 gives a specific verb and resource ('Score tasks') and names the four inputs it consumes (reach, impact, confidence, effort), which pins down a RICE-style prioritization computation. It does not differentiate itself from the similarly-named sibling privi_pro_incident_priority, so an agent cannot rule that alternative out from the text alone.

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 when-to-use or when-not-to-use guidance and no routing to any alternative, even though the sibling list contains at least one adjacent prioritization tool. The only conditioning information is commercial (5 prepaid credits, production billing required), which is a precondition to call, not a selection guideline.

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