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

Annotations already indicate readOnlyHint=true, and the description does not contradict this. The added detail about the Control-plane endpoint provides some behavioral context. However, it omits potential side effects, error conditions, or rate limits, which are less critical for a read operation but still relevant for full transparency.

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 two sentences, front-loaded with the core purpose, and no extraneous words. It efficiently conveys the operation and the REST endpoint.

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 read operation with two parameters and no output schema, the description covers the essential behavior. It could mention that the response is a deployment object, but that is often inferred. Given the tool's simplicity and the annotation coverage, it is largely sufficient.

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 schema already documents both parameters. The description adds the endpoint path but does not provide additional semantic meaning for the parameters beyond what is in the schema. Baseline score of 3 is 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 'Get a single deployment by id,' specifying the exact verb ('Get'), resource ('deployment'), and uniqueness ('single ... by id'). This distinguishes it from sibling tools like fireworks_list_deployments (list) and fireworks_delete_deployment (delete).

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 usage for retrieving a specific deployment by ID but lacks explicit guidance on when to use this vs. alternatives (e.g., list_deployments for multiple, get_account for accounts). The behavior is straightforward, so no strong exclusions are needed, but the absence of contextual hints is a minor gap.

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