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

No annotations are provided, so the description carries the full behavioral burden. It usefully discloses the return shape (ordinalId + title only, no markdown), which is a real behavioral trait, but says nothing about pagination, invalid/ambiguous locator handling, or authentication requirements for a tool where that context matters.

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?

Front-loaded with the verb and scope, then the return shape, then routing and usage. It is efficient overall, though the final sentence largely repeats the locator types already listed in sentence one, adding mild redundancy.

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 correctly takes on the return-value explanation (ordinalId + title only, not markdown) and covers all three otherwise-undocumented parameters. It stops short of describing error/pagination behavior, but nothing essential for a correct call is missing.

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 none of the three parameters are described in the schema, so the description must compensate. It does: it maps the enumerated locators (named test run, release label, plans folder/file path) to the release/plansPath/namedTestRunId semantics and adds the mutual-exclusion rule ('exactly one locator').

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?

States a specific verb (List) and resource (in-scope test scenarios) plus the exact return shape (ordinalId + title only) and the scoping constraint (exactly one locator). It also names the sibling get-test-scenarios as the not-this path, so an agent can distinguish the two without opening either schema.

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?

Explicitly states when to use it ('when executing tests for a plans path, release, or named test run') and routes the agent to the alternative ('use get-test-scenarios for detail by known ordinal'). The 'exactly one locator' constraint also implies the not-when (multiple locators or detail lookups).

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