betr_pop_sgm_category

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

Annotations already declare readOnlyHint, openWorldHint, and idempotentHint. The description adds useful context beyond these: 'Auth: none needed' and the exact return structure. No contradiction with annotations. This is good transparency for a simple read-only list.

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: one line for purpose, one for return shape, one for auth. Every sentence adds necessary information without redundancy. Well-structured and front-loaded.

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 zero-parameter, read-only list tool, the description covers the essential aspects: what it returns and auth requirements. The output structure is embedded in the description. It lacks usage context, but that dimension is already scored separately. Overall adequate for a simple tool.

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 tool has zero parameters, so the schema provides no meaningful semantics. Baseline is 4. The description goes beyond the schema by specifying the return object shape, which helps the agent understand what to expect.

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 identifies the resource: categories that currently have Popular Same Game Multis. It names a specific scope ('currently have Popular Same Game Multis') which distinguishes it from generic category tools, but it lacks an explicit verb like 'list' or 'get', so it's slightly less clear than it could be.

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?

There is no guidance on when to use this tool versus alternatives. It doesn't mention related tools like betr_pop_sgm_bet_data or betr_master_category, nor does it provide any decision context. Given the large sibling list, this gap is significant.

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