scoreboard

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

With no annotations, the description carries the full behavioral burden. It does usefully disclose that the scoreboard is 'public' (implying no token/login required), but says nothing about result size, pagination, rate limiting, or whether it reflects live scoring. An output schema exists, so return-value structure is covered elsewhere.

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?

A single short sentence with the resource front-loaded and a clarifying parenthetical. Nothing is wasted and nothing important is buried.

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 parameterless read tool with an output schema, the description covers what is returned and that it is public. The only real gap is guidance on when in the workflow to call it, which is minor given the tool's simplicity.

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 takes zero parameters, so there is nothing for the description to clarify beyond the schema. Baseline 4 applies for a parameterless tool.

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?

States a specific verb+resource: 'Return the public CTFd scoreboard (top standings)'. The parenthetical clarifies what a scoreboard returns (top standings), so the agent knows exactly what it gets. It does not need to differentiate from siblings since none of the other tools (challenges, submit_flag, login, etc.) overlap with fetching standings.

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?

Usage is implied rather than stated: there are no alternatives to route between, and the word 'public' hints that no authentication is required. However, the description never says when to call it (e.g., after login, to check rank) or whether auth state matters, leaving the trigger condition to inference.

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