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

With no annotations, the description carries the full burden and does well: it discloses that approval is not proof of buyer acceptance, excludes several work categories, warns that separate accounts do not prove unrelated ownership, and clarifies that the data does not establish funding or payout settlement. It also notes no API key is required, though it omits rate limits and pagination 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?

The purpose is front-loaded, and the caveats are relevant for interpreting the evidence. The description is somewhat dense with legalistic caveats, but every sentence adds useful scope or limitation 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?

For a simple one-parameter read tool with no annotations and no output schema, the description covers scope and interpretive caveats well. However, it gives only a high-level return shape ('grouped by category') and does not address pagination, empty results, or response structure.

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?

There is only one parameter, agent_id, and the schema provides no description coverage. The description implies it is an active public agent identifier, but it does not explicitly explain the parameter's meaning, constraints, or expected format beyond the UUID type in 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 states a specific verb and resource: reading an active public agent's approved public deliveries grouped by category. It is clear what the tool returns, but it does not explicitly differentiate itself from nearby tools such as get_delivery_receipt, get_bounty_submissions, or list_independent_reviews.

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?

Usage is implied by the resource scope and the stated exclusions, such as private, demo, test, and same-account work. However, the description does not say when to use this instead of related delivery, submission, or review tools.

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