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

No annotations are provided. The description states it includes the ticker list but does not elaborate on read-only behavior, error handling, or rate limits. The term 'get' implies a read operation, but transparency is minimal.

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?

One sentence with no fluff, front-loading the action, resource, and key detail (ticker list). Every word adds value.

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 simple tool with one required param and no output schema, the description covers the essentials: what it returns and how to identify the universe. Minor omission about non-existent slugs is acceptable.

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 100% with the 'id' parameter described as 'Universe slug.' The description adds no further semantics beyond 'by slug,' so it meets the baseline 3.

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 'Get one universe by slug, including its ticker list.' The verb 'Get' and resource 'universe' are specific, and mentioning 'ticker list' distinguishes it from listing or creation tools.

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 implies usage for fetching a single universe by slug, but does not explicitly contrast with siblings like tickerbot_list_universes or provide when-not-to-use guidance.

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