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 real trait — 'No vetter points' (i.e., this earns no vetting credit) — which is useful. It says nothing about whether the vet is immediate or asynchronous, whether it consumes a quota or fee, what happens to the entry on failure, or what is returned.

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?

It is short and front-loaded, so nothing is wasted in length. But the leading metaphor 'A team of one' spends its most prominent position on flavor rather than on the action, which costs clarity in a two-sentence description.

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 an action tool with no annotations and no output schema, the description should explain eligibility, cost, and result. It covers only cost ('No vetter points') and leaves the eligibility rule and the outcome of the call unstated, which is not enough for an agent to call this confidently.

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?

With 2 parameters and only 50% schema coverage, submission_id is undocumented in the schema and the description never names it. 'Your own math entry' hints that the target must be the caller's own submission, but it gives no format, no failure mode for a submission you don't own, and no explanation of how api_key interacts with ownership.

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 conveys that this asks a site-provided ('house') checker to vet the caller's own math submission, which is the right action for this name. But the phrasing is metaphorical ('A team of one', 'second checker', 'stand in for a teammate') rather than a direct verb+resource statement, so an agent must decode it. 'On your own math entry' is the one phrase that genuinely separates it from math_vet.

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?

'On your own math entry' implicitly states the situation (you cannot vet your own submission, so you need a substitute checker), which is usable guidance. However, no sibling is named — neither math_vet (vet someone else's) nor planets_house_vet (the analogous tool) — and there are no exclusions or preconditions such as submission state or eligibility.

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