get_body_battery_events

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

With no annotations, the description carries the burden of explaining behavior. It discloses that this is an event-based view of Body Battery with impact associations, but it does not discuss timezone handling, data availability, or any caveats beyond the basic returned content.

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 one-sentence functional summary followed by a two-line args block contains all necessary information with no filler. The key event/impact detail is front-loaded.

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 single optional input with an output schema present, date format and default are enough to call the tool. It lacks only sibling-route guidance and contextual caveats such as timezone/availability, but the low parameter complexity keeps this from being a serious gap.

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 for the only parameter only says type/default, while the description supplies the required YYYY-MM-DD format and the 'defaults to today' behavior. This fully compensates for the 0% schema description coverage.

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 states a specific resource – Body Battery charge/drain events – and constrains it to a single day with categories (sleep, activities, stress) and impact. It is clear, but it does not explicitly differentiate it from the sibling get_body_battery or get_daily_summary, so it stops short of full sibling distinction.

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 is given on when to use this tool versus siblings like get_body_battery or get_daily_summary. The phrase 'for a day' only describes the data scope, not selection criteria or exclusions.

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