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

With no annotations, the description must cover behavioral traits. It only states listing and a permission, omitting details like pagination, ordering, or output format. The limit parameter in the schema hints at pagination but is not explained.

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 brief but under-specifies. While it avoids fluff, it lacks detail necessary for correct use, making it more inadequate than concise.

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 tool's complexity (two parameters, list operation, no output schema), the description is incomplete. It fails to explain what eval history consists of, how results are structured, or how to interpret the artifactBundleId requirement.

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 should clarify parameters. It does not explain artifactBundleId or limit, failing to add meaning beyond the bare schema definitions.

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 tool lists eval history. The verb 'list' and resource 'eval history' are specific, and it distinguishes from sibling tools like rubrkit_read_eval for reading a single eval.

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 mentions a required permission ('artifact_bundles:read'), which provides usage context. However, it does not specify when to use this tool versus alternatives like rubrkit_read_eval or how to filter or paginate results.

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