get_test_case

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

With no annotations provided, the description carries full responsibility for behavioral context. It clearly indicates a read operation ('Get'), but does not disclose any additional behavioral traits such as permissions, rate limits, or error handling. This is minimally adequate.

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 highly concise: two sentences that deliver essential information without any redundant or superfluous language. Every part serves a clear purpose.

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?

Given that the tool has only one parameter and no output schema, the description adequately covers the input format. It could be improved by briefly noting that the tool returns a test case object, but the current content is sufficient for correct use.

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?

The input schema already provides a pattern and description for the 'marker' parameter. The description adds value by explaining how to derive the marker from a URL, which goes beyond the schema's syntax constraint. This extra context is helpful for correct tool invocation.

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 ('Get'), the resource ('a test case from QA Sphere'), and the format of the identifier (marker in PROJECT_CODE-SEQUENCE format). This distinguishes it from sibling tools like get_project or list_test_cases.

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 includes explicit guidance on how to extract the marker from URLs, which helps agents understand when to use this tool (when a marker or URL is available). However, it does not specify scenarios where this tool should not be used or provide alternatives.

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