get_test_case_by_key

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the tool is 'Verified Working', which hints at reliability, but fails to describe critical behaviors: whether it's a read-only operation, what happens if the key doesn't exist, authentication requirements, rate limits, or response format details. The description adds minimal value beyond the basic purpose.

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?

Extremely concise and front-loaded: the core purpose is stated in the first few words. The verification note is brief and doesn't distract. Every element earns its place with no wasted words or redundant information.

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 read operation with 6 parameters and no output schema, the description is minimally adequate. It states what the tool does but lacks details about return values, error handling, or behavioral constraints. With no annotations and no output schema, more context would be helpful, but the high schema coverage partially compensates.

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 100%, so the schema fully documents all 6 parameters. The description adds no additional parameter semantics beyond what's in the schema (e.g., no examples of case_key formats beyond what's implied, no explanation of when to use different formats). Baseline 3 is appropriate since the schema does the heavy lifting.

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 detailed test case') and resource ('by key'), making the purpose immediately understandable. It distinguishes from siblings like 'get_test_case_by_title' by specifying the key-based lookup. The emoji and verification note add flavor but don't detract from clarity.

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?

No explicit guidance on when to use this tool versus alternatives like 'get_test_case_by_title', 'get_test_case_by_filter', or 'get_test_cases_advanced'. The description implies it's for retrieving a single test case by its identifier, but lacks context about prerequisites, error conditions, or comparison with sibling tools.

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