delimit_test_coverage

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

No annotations are provided, so the description must carry the full burden of behavioral disclosure. It only notes 'experimental' and 'Pro' but does not mention side effects, required permissions, or whether the tool modifies state. The description is insufficient for understanding the tool's behavior beyond its basic function.

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 extremely concise at one line, with parenthetical tags for experimental and Pro. It is well-structured and front-loaded, though it could benefit from slightly more detail without becoming verbose.

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 minimal description and lack of annotations, the tool lacks context for expected input/output formats, supported languages, or whether the tool runs tests. The presence of an output schema is noted but not leveraged. The description feels incomplete for a test coverage analysis tool.

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 input schema has 100% description coverage for both parameters, so the minimum baseline is 3. The description adds no extra meaning to the parameters beyond what the schema already provides, such as the default threshold value.

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 verb 'Analyze' and the resource 'test coverage', making the tool's purpose immediately understandable. It also distinguishes from sibling tools like delimit_test_generate and delimit_test_smoke, which have different functions.

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 analyzing test coverage but provides no guidance on when to use this tool versus alternatives, nor does it specify exclusions or prerequisites. The usage context is implicit.

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