coverage_report

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says the tool 'generates' a report and does not describe output format, authentication requirements, side effects, or how the supplied data is transformed beyond vague 'trends and actionable insights'.

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 one short, front-loaded sentence with no wasted words. It efficiently conveys the core action and key differentiators, though it omits some behavioral context.

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?

With no annotations and no output schema, the description is thin for a tool that takes four parameters. It does not explain how previous_coverage and threshold contribute to the report, what 'formatted' means in practice, or what the agent should expect as a return value.

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 description coverage is 100%, so the schema already documents all four parameters. The description adds no parameter-level meaning; the baseline of 3 is appropriate since the schema does the heavy lifting.

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 action ('Generate') and a specific deliverable ('a formatted coverage report') with added value ('trends and actionable insights'). It is clear enough that an agent can tell the tool is for producing a report, though it does not explicitly differentiate itself from sibling tools like coverage_analyze_gaps or coverage_suggest_tests.

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 about when to use this tool versus related alternatives such as coverage_analyze_gaps or coverage_suggest_tests. There is no stated condition, prerequisite, or exclusion to help an agent route between sibling tools.

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