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

Annotations declare readOnlyHint=false, destructiveHint=true, openWorldHint=true, so the safety profile is already covered; the description usefully adds the auth model (works without login/API key/OAuth). It never explains why this is flagged destructive or what side effect the lead submission produces, which is the gap annotations cannot fill.

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, front-loaded with the action and its auth scope, and the second sentence carries the sequencing constraint. Minimal waste, though the audit-tools aside is slightly tangential to invoking this tool.

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 unauthenticated mutation with no output schema and destructiveHint=true, the description covers auth and downstream sequencing but omits what a successful submission returns, whether it is idempotent, and how to check status afterwards (get_sulvo_signup_status exists but is not referenced). Adequate, with clear gaps.

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 67% (moderate, not high enough for the free baseline 3) and the description explains no parameters at all. The undocumented outputFormat enum and the accepted domain format are left entirely to the schema, so the description adds nothing beyond structured fields.

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+resource ('submit an unauthenticated Sulvo account application lead') and names the transport ('current signup API'), which is enough to distinguish it from read-only audit siblings. It does not, however, differentiate itself from near-neighbors like create_sulvo_signup_account, start_sulvo_signup, or submit_sulvo_signup_documents, leaving the exact boundary of 'application lead' ambiguous.

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 a clear precondition (unauthenticated, no login/API key/OAuth) and a sequencing rule ('ad-unit generation should wait for Sulvo account approval'), which is real when-to-use guidance. It stops short of naming which sibling to call instead for the account-creation vs. document-submission path.

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