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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It lists content that will be returned, but does not state whether the tool is read-only, whether authentication is required, whether it has side effects, or how the data is produced or cached.

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 a single front-loaded sentence with no wasted preamble. It is appropriately sized for a no-parameter tool, though the phrasing around 'Who has the better game?' is slightly informal and could be clearer.

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 tool with no output schema, the description adequately covers the scope: tonight's game, related questions, player form, and pick-lock timing. It could add a brief note about read-only behavior, but most core context is present.

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 baseline is 4. The description correctly does not invent parameter semantics where none exist.

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 identifies a specific resource: tonight's Oilers game, including matchup questions, player form, and pick-lock timing. It is clear enough to distinguish from get_results (past results) and get_rules, though it does not explicitly name those siblings or use a strong verb beyond the tool name.

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 word 'Tonight's' implies temporal scope, but the description gives no explicit guidance on when to use this tool versus get_results, get_rules, or submit_picks. It does not say what to use instead when the user asks about past games or rules.

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