getCaseHistory

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

Since no annotations are provided, the description must disclose behavioral traits. It states the operation is a retrieval (read-only), but does not mention any side effects, authentication needs, rate limits, or other constraints. This is a minimal disclosure that leaves gaps.

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 extremely concise with two sentences—one in English and one in Japanese—both front-loaded with the purpose. Every word adds value, no fluff or 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?

Given the low complexity (1 parameter, no output schema), the description is fairly complete: it clearly states what is retrieved. However, it could be improved by briefly mentioning return format or any pagination behavior, but it's still adequate.

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?

There is only one parameter (caseId) with 100% schema description coverage. The schema already defines it as 'TestRail Case ID', so the description adds no additional semantics beyond what the schema provides. Baseline 3 is appropriate.

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 'Retrieves the change history of a test case', specifying the action (retrieves), resource (change history), and scope (test case including fields and custom fields). It differentiates from sibling tools like getCase (which retrieves the case itself) and getCases (list cases), making purpose unambiguous.

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 or when not to use this tool versus alternatives is provided. The description implies usage for obtaining history, but lacks context like prerequisites or alternatives for similar operations.

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