validate_catalog_connections

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

No annotations are provided, so the description must fully disclose behavioral traits. It describes the action as validating and diagnosing, but it does not explicitly state whether the tool is read-only or has side effects. This is a significant gap for a diagnostic tool, especially given the lack of annotations.

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 concise, with only 14 lines including blank lines. It front-loads the purpose and then provides a structured Args section. Every sentence adds value, with no extraneous information.

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 complexity (validation chain with 4 optional parameters) and no output schema, the description is somewhat incomplete. It mentions a 'diagnostic health assessment' but does not specify the return format or how results are presented. Additionally, more context about what checks are performed would help differentiate it from sibling tools.

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 0% description coverage, but the description provides a clear Args section that explains each parameter's purpose (e.g., 'Optional ad account ID to verify connection'). This adds meaningful context beyond the schema names, compensating for the lack of schema descriptions.

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 tool validates the catalog-pixel-account-page connection chain and runs a diagnostic health assessment. It specifies the purpose for DPA, which helps distinguish it from sibling diagnostic tools. However, it could be more explicit about what 'validate' means in terms of output.

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 context by explaining that for DPA to work, the chain must be connected. This hints at when to use the tool, but it does not explicitly state when not to use it or compare it to alternatives like run_tracking_diagnostic. No exclusions or direct sibling differentiation.

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