get_battery_health_summary

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the tool 'provides current battery health status and statistics' which suggests a read-only operation, but doesn't specify format, scope (all cars vs filtered), response structure, or any limitations. For a tool with zero annotation coverage, this leaves significant behavioral questions unanswered.

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 perfectly concise with two sentences that each add value. The first sentence states the core purpose, the second adds important detail about what's provided. No wasted words, no redundancy, and front-loaded with the main action.

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 0 parameters, 100% schema coverage, and an output schema exists, the description is reasonably complete for its purpose. However, with no annotations and multiple sibling tools in the same domain, it should ideally provide more context about when this summary tool is appropriate versus other battery-related tools. The existence of an output schema means the description doesn't need to explain return values.

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 0 parameters with 100% schema description coverage, so the schema already fully documents the parameter situation. The description appropriately doesn't discuss parameters since none exist. Baseline for 0 parameters with full schema coverage is 4, as the description correctly avoids redundant parameter information.

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 action ('Get') and resource ('battery health summary for each car'), specifying it provides status and statistics. It distinguishes from siblings like 'get_battery_degradation_over_time' by focusing on current status rather than historical trends. However, it doesn't explicitly differentiate from all battery-related tools like 'get_daily_battery_usage_patterns'.

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 provides no guidance on when to use this tool versus alternatives. With multiple battery-related siblings (get_battery_degradation_over_time, get_daily_battery_usage_patterns), there's no indication of when this summary tool is preferred over more specific battery tools. No prerequisites or exclusions are mentioned.

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