get_steps_data

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

No annotations are provided, so the description must cover behavioral traits. It only states it gets data without mentioning read-only nature, data granularity, or any limitations. The agent lacks information about side effects or performance.

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 very short with a clear Args section and format specification. It is front-loaded with purpose, but the 'Args' line could be integrated into the main sentence without loss. Slightly verbose for the little information provided.

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 complexity of step data and the presence of an output schema, the description is too minimal. It does not explain what 'detailed' means, e.g., total steps, hourly breakdown, or metadata. The agent lacks context to interpret results.

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 schema has one parameter 'date' with no description, and schema coverage is 0%. The description adds the required date format YYYY-MM-DD, which is essential for correct invocation. This compensates well for the schema gap.

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 retrieves 'detailed step data for a given date', specifying the verb and resource. While it doesn't explicitly differentiate from siblings like get_activities, the name and description make it clear this is specifically for step data, which is distinct.

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 versus alternatives. With many sibling tools such as get_daily_summary or get_heart_rates, the description should mention context or exclusions but does not.

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