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

No annotations are provided, so the description carries the behavioral disclosure burden. It adds value by explaining that an empty result means disabled, stale, or unavailable, and by instructing acknowledgment without action. However, it does not describe the non-empty return shape, potential side effects of 'refreshing', or error behavior.

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 sentences, front-loaded with the core action and then a conditional behavioral note. It is compact and mostly clear, though the phrase 'acknowledge its wake' is somewhat cryptic and could be more direct.

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 and no annotations, the description should clarify return values and behavior more fully. It explains the empty case but not what a successful refresh returns or how to interpret a non-empty response. It is adequate for basic tool selection but incomplete for full invocation confidence.

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 input schema already documents both parameters adequately. The description adds little parameter-specific meaning beyond implying the tool targets a single private suggestion via suggestion_id.

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 uses a specific action ('Refresh') and a specific resource ('one private suggestion'), and it clearly distinguishes this tool from siblings like suggestions_list by focusing on a single item before acting. The purpose is immediately understandable and not a tautology.

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 gives clear timing guidance: use this before acting on a private suggestion. It also explains the empty-result case and instructs the agent to acknowledge without action, which is useful directional guidance, though it does not name alternative sibling tools explicitly.

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