Delivery: create announcement [sandbox]

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

Annotations indicate a mutation (readOnlyHint false) and non-destructive (destructiveHint false). The description adds that it is a sandbox with no consequences, which clarifies the behavioral impact beyond the annotations. No contradictions.

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 sentence that packs in environment, purpose, routing, audience, and comparison to production. It is front-loaded with [SANDBOX] and contains no superfluous details.

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 complexity (9 parameters, nested objects) and lack of output schema, the description covers the essential context: environment, purpose, routing, and lack of consequences. It could elaborate on the response format or success criteria, but it is adequate for the sandbox context.

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 provides detailed explanations for all 9 parameters. The description adds no additional parameter-level information, making the baseline score appropriate.

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 creates an announcement for a planned shipment in the test environment, and distinguishes itself from the production sibling delivery_create_announcement_3pl. The verb 'creates' and resource 'announcement' are specific, and the sandbox context is explicit.

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 provides clear context: this is for sandbox testing, no consequences, and for delivery-service partners only. It contrasts with the production version, but does not explicitly list when not to use it or other alternatives beyond the one mentioned.

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