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

Annotations already declare readOnlyHint true and destructiveHint false, so the safety profile is covered. The description adds real behavioral value: it discloses that queued items not yet in the inbox are included, details the return contents and ordering, and explains the failure shape and recovery step.

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?

Front-loads the purpose and return contents, then the sibling routing, then error handling. Slightly long but every sentence carries information; the error-handling sentence is a touch 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?

With no output schema, the description carries the return-shape burden and does so well by enumerating prompts, topic, task id/sequence, content recommendation, and publisher shortlist. Only minor gap is the unexplained advertiserProjectId parameter.

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 67%; the two analytics params (context, llm_model) are documented in-schema. The advertiserProjectId has only a pattern and no description, and the description only weakly implies it via 'the active project.' Baseline 3 given the partial coverage.

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?

States a specific verb and resource: 'List open publisher-order suggestions for the active project from the suggestion engine,' with the added detail of including queued items. Clear what it does, but it does not distinguish itself from the sibling get-llm-prompt-suggestions, which shares nearly the same name.

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?

Routes link-fix and site-fix suggestions to get-suggestion-inbox and adds recovery guidance for the error case. However, it never addresses the closest-named sibling get-llm-prompt-suggestions, leaving the primary ambiguity unresolved.

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