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

Annotations already declare readOnly, idempotent, non-destructive, so safety is covered. The description adds real behavior beyond that: sort order (newest-updated first), a compact response shape with named fields, a definition of testCaseCount excluding deleted cases, and the limit's default and ceiling.

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 clauses, front-loaded with the core action and scope, followed by return shape and pagination limits. No redundant restatement of the title and nothing that fails to earn its place.

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 supplies the returned field list and the testCaseCount semantics, plus ordering and result-count bounds. For a two-parameter read-only list tool this covers everything needed to call it correctly.

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 50%: projectId is documented as a UUID while limit carries only machine constraints. The description compensates by explaining that limit defaults to 20 and caps at 50, giving the agent the practical bound that the schema alone only encodes as min/max.

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 and resource ("List test suites") scoped to a Stride project, which clearly separates it from create/update/delete_test_suite and from list_test_cases/list_test_runs. It does not explicitly name a sibling or contrast with get_test_suite, so sibling differentiation is implicit 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 implied by the verb and the project scoping, but there is no explicit when-to-use guidance, no mention of when to prefer a single-suite fetch, and no prerequisites or exclusions. Adequate but leaves routing to inference.

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