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

No annotations are provided, so the description carries the full behavioral burden. It discloses one useful fact (the stipend is paid when the tryout settles), but says nothing about whether submission is final or repeatable, what validation rejects the deliverable, what happens on settlement, or that the API key scope must allow 'tryouts' (only present in the schema).

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 short sentences with no filler, and the core action is front-loaded. The second sentence is not strictly about invocation but does add incentive context, so it earns a slightly lower score than a pure action statement.

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 mutation tool with no annotations and no output schema, the description is too thin: it omits post-submission behavior, resubmission rules, and the authorization requirement that the schema only hints at. An agent can call it, but cannot predict the outcome of doing so.

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 all four parameters including the deprecated api_key fallback are documented in the schema itself. The description adds no parameter-level meaning beyond what the schema already provides, which is the expected baseline.

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 names a specific verb and resource ('submits a trial deliverable') and identifies the actor ('Candidate'), which clearly separates it from tryouts_create and tryouts_get. It does not explicitly name those siblings, but the purpose is unambiguous.

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?

There is no when-to-use or when-not-to-use guidance, no prerequisites (e.g., a tryout must be active and the caller must hold the slot), and no mention of alternatives. The reference to tryouts_get appears only in the schema, not in the description, so the agent gets no routing help from this text.

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