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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds the meaningful constraint that only completed/settled jobs yield a result, implying failure otherwise, but it omits error behavior, retry semantics, or result freshness. With annotations carrying most of the load, this is adequate.

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 front-loaded sentence with no filler or redundancy. It is arguably too terse for a tool with four schema variants, but every word earns its place.

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?

An output schema exists, so return values need no explanation, and annotations cover safety. What is missing is differentiation from the close siblings get_job_status and get_job_artifact and any hint about the versioned reference variants in the schema, which matters for correct invocation.

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% and the anyOf branches document product/schema_version via const and enum values, so the schema does the heavy lifting. The description adds no detail about job_id format, the product variant selection, or the versioned reference shapes the schema offers. Baseline 3 applies.

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 (Read) and resource (one product result) and qualifies scope with 'completed and already-settled', which distinguishes it in spirit from get_job_status. However, it never names get_job_artifact or get_job_status, so an agent must infer the boundary between 'result', 'status', and 'artifact' on its own.

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 phrase 'completed and already-settled' implicitly defines a precondition for use, which is better than nothing. But there is no explicit when-to-use versus get_job_status (check progress) or get_job_artifact (retrieve files), nor any statement about what happens if the job is not yet settled.

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