Get Testing Settings

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

Annotations already declare readOnlyHint=true, and the description's 'Read' aligns with that. The description adds useful behavioral context beyond annotations by explaining that project context is required and by defining what schemaNullMode controls.

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?

Two concise sentences with no filler. The main action is front-loaded, and the additional schemaNullMode explanation is directly relevant and compact.

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 zero-parameter read-only tool, the description covers the essential points: what is read, a prerequisite, and the meaning of a key setting. The lack of an output schema is partially mitigated by this explanation, though the full set of testing settings is not enumerated.

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 is empty, so there are no parameters to document; the baseline for zero-parameter tools is 4. The description still adds meaning by explaining a key setting returned by the tool, which helps the agent interpret the response.

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 verb ('Read') and resource ('project's testing settings'), and further clarifies the domain by mentioning schemaNullMode. This clearly distinguishes it from sibling getters like get_monitoring_settings or get_doc_settings.

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 a prerequisite ('Requires project context'), which gives some usage guidance. However, it does not explicitly state when to prefer this tool over alternatives or when not to use it, leaving the context to be inferred.

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