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

With no annotations, the description carries the full burden and mostly delivers: it discloses the state mutation ('clears that site's unreported slot'), the auth-style requirement (same Submit Kit key), and the non-obvious deferred semantics that 'listed' only counts after a daily live check. It stops short of stating error behavior, idempotency, or whether a domain can be re-reported.

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?

Front-loads the routing constraint before the mechanical details, and every sentence carries information. The bracketed '[Launch directories]' tag adds little, and the final 'only a lead' sentence, though useful, could be tightened.

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?

No output schema exists, so the description must convey the aftermath; it does so by saying the outcome is recorded and the unreported slot cleared, plus the caveat on 'listed'. Remaining gaps are the response shape on failure and re-reporting rules, which are minor for a simple five-param write.

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 only 40%, but the description compensates: it enumerates the required fields (key, domain, status), lists the full status enum, marks listing_url and note as optional, and adds meaning to 'key' by tying it to the Submit Kit. Only the note's 300-char limit is left to 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 (records/reports an outcome) on a specific resource (a domain issued by next_directory), and explicitly names what it is NOT (submitting a tool to AgentoolRank). An agent can separate this from submit_tool and next_directory without opening either schema.

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 an explicit trigger ('when recording an outcome for a domain issued by next_directory') plus an explicit exclusion ('not submitting a tool to AgentoolRank'), and names the prerequisite key. The conditions that select this tool versus its siblings are stated outright.

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