add_test_case_to_test_plan

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

With no annotations, the description carries the full burden of behavioral disclosure. It only says 'Add', implying mutation, but does not disclose side effects, permissions, idempotency, or error conditions. The parenthetical function name adds no behavioral insight.

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?

The description is a single, front-loaded sentence that efficiently conveys the core purpose. The parenthetical function name is redundant but not verbose enough to lower the score further.

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 tool with 7 parameters, 4 required, and no output schema or annotations, the description is too sparse. It does not explain return values, parameter relationships, or usage prerequisites, leaving the agent uncertain about correct 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 0%, so the description must compensate. It provides minimal context for 'version' and 'platform' but does not explain the required parameters like testProjectId, testPlanId, or testCaseExternalId, nor optional ones like urgency and executionOrder.

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 clearly states the action: adding a specific test case version to a test plan, with an optional platform filter. This verb+resource pair is specific and distinguishes it from sibling tools like 'get_test_cases_for_test_plan' or 'read_test_case'.

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?

The description implies the tool is for associating a test case version with a test plan, which provides clear context for when to use it. However, it does not mention alternative tools or when not to use it, so it lacks exclusions.

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