get_sleep_records

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

With no annotations, the description carries the burden of behavioral disclosure. It does disclose a behavioral trait: ignoring empty files. However, it does not mention read-only nature, return format, pagination, or any side effects. The description adds some value but leaves significant behavioral context undisclosed.

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, concise sentence that front-loads the core action. Every word earns its place, providing essential information about the source and the empty-file filtering without unnecessary padding.

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 tool has no parameters and an output schema exists (so return values need not be described), the description is reasonably complete. It specifies the source file and a key processing detail. It could mention broader usage context, but for a simple extraction tool, it covers the essentials.

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 schema coverage is trivially 100%. The description does not need to explain parameters, and per the baseline for 0-param tools, a score of 4 is appropriate. The description adds no parameter-specific semantics but none are needed.

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 tool extracts sleep data and schedules from the specific derived_com.google.internal.sleep files. It uses a specific verb ('extrai') and resource, and the sibling tools (get_daily_activity, get_workout_logs) indicate this is the sleep-specific option, distinguishing it from alternatives.

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 retrieving sleep data from a specific source, but does not explicitly state when to use this tool over siblings or provide exclusions. There is no mention of alternatives or contextual guidance beyond the source file, so the usage context is only implied.

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