get_store_hours

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

With no annotations provided, the description carries the full burden. It states what data is returned but does not disclose behavior for invalid store_id, error handling, or whether the store must be open. No extra context beyond the basic function.

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, concise sentence with no redundancy. The information is front-loaded and directly addresses the tool's purpose without any filler.

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 simple single-parameter getter, the description covers the essential purpose but omits any mention of return format, error cases, or prerequisites. Given no output schema and no annotations, a more complete description would include what the response looks like or what happens for nonexistent stores.

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 must clarify the parameter. It mentions 'by store_id', which identifies the parameter as an identifier, but does not specify format (numeric vs string), source, or validation rules. Minimal compensation for the lack of schema descriptions.

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 verb 'Get', the resource 'opening hours and 24-hour status', and the identifying parameter 'store_id'. It distinguishes from siblings like find_store (search) and get_store_info (general info) by specifying the exact data returned.

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?

No guidance on when to use this tool over alternatives. It doesn't mention situations where this is preferred over get_store_info or list_stores_in_area, nor any prerequisites like needing a valid store_id.

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