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

Annotations already declare destructiveHint=true, and the description adds real value beyond that: it specifies the consequences (stops serving, stops billing) and identifies the underlying control-plane call. It does not state irreversibility, recovery options, or whether deletion is asynchronous.

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?

A single sentence that front-loads the verb and effect, with the endpoint detail relegated to the end. Every clause earns its place; nothing is padded.

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 two-parameter destructive tool with no output schema, the definition covers the essential behavioral facts. Only the irreversibility/async nature is left unstated, a minor gap given the annotation already flags destructiveness.

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 coverage is 100%, so both parameters are already documented; the baseline of 3 applies. The embedded DELETE path does hint that account_id and deployment_id are resource path segments, which adds marginal meaning but no format or override behavior beyond 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?

States a specific verb (DELETES/shuts down) and resource (a Fireworks deployment), plus the concrete effect: stops serving the model and stops billing. Clearly distinguishable from siblings like fireworks_get_deployment and fireworks_list_deployments.

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 destructive framing implies when it is appropriate, and the control-plane note gives some context, but there is no explicit when-to-use/when-not guidance or pointer to an alternative (e.g., scale-down or a non-destructive update tool). Usage must be inferred.

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