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

Annotations already declare the write/non-destructive/non-open-world profile, so the bar is lower, and the description does add that the response is the ingested execution record (useful given no output schema). However, with idempotentHint=false and an externalId parameter, the critical question of whether re-ingesting the same externalId creates a duplicate or dedupes is left unstated.

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?

Three short sentences with the action front-loaded and no filler. The optional-parameter list is compact, though it is a bare enumeration rather than information-dense prose.

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?

A 10-parameter write tool, but the description covers the identifier choice, the required result, the optional metadata set and the return shape, with auth key guidance carried in the schema. The missing piece is ingestion/idempotency semantics for repeated externalId submissions.

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 only 20%, but the description compensates by enumerating the business parameters it cares about (scenarioOrdinalId, externalId, result, release, testRunLabel, environment, platform, notes). It does not explain how to choose between scenarioOrdinalId and externalId when you have both, nor where externalId comes from, which is the main semantic gap.

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?

Specific verb + resource ('Record a scenario execution result') with the key identifying inputs named immediately. It is clear what the tool does, but it never distinguishes itself from nearby siblings such as manage-test-run or report-agent-action, which an agent could plausibly reach for instead.

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?

'manual or imported' gestures at the two usage contexts and 'Provide scenarioOrdinalId and/or externalId' gives a minimal input rule. There is no explicit when-to-use/when-not and no named alternative, so the agent must infer the boundary with manage-test-run.

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