hello_aigent_overview

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

With no annotations, the description carries the behavioral transparency burden. It discloses the admin token requirement and lists the data returned, which implies a read-only operation. However, it does not describe side effects, return format, or error behavior, leaving some gaps for a tool with no annotation support.

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 a single concise sentence listing the overview contents, followed by a short note on authorization. Every part is essential and front-loaded with the tool's purpose.

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 tool's simplicity (one parameter, no output schema, no annotations), the description provides sufficient information: what the overview includes, the auth requirement, and the resource type. It could mention the return format or an example, but it is reasonably complete for its complexity.

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 sole parameter 'feed' is fully described in the schema as 'Feed id' (100% coverage). The description adds no additional parameter semantics beyond referencing 'a feed' in the overview text, so it meets the baseline without enhancing the schema.

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 it provides an overview for a feed and enumerates specific metrics (subscribers, fetches today, 7-day return rate, etc.). It lacks an explicit verb like 'get' or 'retrieve,' but the tool name and context make the action clear. It distinguishes from sibling tools by aggregating feed-level data, though it does not name alternatives.

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 use when a high-level feed summary is needed and notes the admin token requirement. However, it does not explicitly state when to choose this over siblings like hello_aigent_subscribers or hello_aigent_event_log, nor does it mention any exclusions or alternative comparisons.

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