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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=true, so the low-level safety profile is covered. The description adds real behavioral context beyond that — the required status precondition and the human-confirmation gate — but never explains the consequence of the irreversible send or what a failure/idempotent replay looks like.

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?

Two sentences, no padding, with the identity/scope statement first and the dependency precondition second. Every clause carries operational meaning.

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?

With annotations covering safety and an output schema covering return values, the description only needed to supply the workflow gate, which it does well. It stops short of describing what happens to the application record after submission or the failure mode when the status is not awaiting_submit.

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 one parameter (session_id) with 0% schema description coverage, and the description says nothing about it. The schema does supply its type and the Session-Id header mapping, which makes it largely self-evident in context, so this is adequate but leaves a gap the description should have closed.

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 ('Send an application') plus the precise object and its originating state ('that stopped for review ... status awaiting_submit'). It also contrasts with the sibling apply_for_job by naming the parameter combination (auto_submit false) that distinguishes the two, so an agent can route correctly without opening schemas.

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?

Gives explicit preconditions: only after check_application_status output has been shown to the user and only after the user affirms sending. This is a genuine when-to-use gate referencing a named sibling tool, not implied guidance.

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