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

No annotations are present, so the text must carry behavioral context. It discloses that submission only creates an unverified record and that ownership requires a separate claim, which is valuable. The phrase 'Abuse-limited' hints at rate restrictions but is vague and does not specify limits, and no response/error behavior is described.

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 with no filler; the primary action and preferred input are front-loaded. Every clause adds information, and the claim/abuse caveats are placed after the core mechanics.

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?

It covers the core submission flow and the post-submission claim step, but there is no output schema and the description does not say what the tool returns or that one of cardUrl/manifest is required (schema shows 0 required). 'Abuse-limited' is too vague to be actionable, leaving meaningful gaps for a caller.

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 100%, so the baseline is 3; the description adds the preference for cardUrl and the notion of stronger provenance, which is not in the schema. It effectively maps the two optional parameters to a choice, though it doesn't clarify that at least one should be supplied.

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 states a specific verb ('Submit'), the resource ('an agent'), and the two accepted input forms (A2A Agent Card URL or inline manifest). It also distinguishes the tool's outcome from the claim process by noting the record is unverified and ownership must be proven separately, so it won't be confused with claim_agent.

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?

It gives concrete selection guidance: prefer cardUrl for strongest provenance and use inline manifest as the fallback. It explicitly warns that ownership proof is not part of this tool ('must be proven separately via a claim'), effectively routing ownership tasks to a sibling. It doesn't list other alternative tools, but the main decision points are covered.

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