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

With annotations already declaring the non-read-only, non-idempotent, open-world, non-destructive profile, the description still adds real behavior: connectivity-check semantics, the auth requirement (token or Authorization: Bearer on HTTP /mcp), and a credential-handling warning. It does not describe what a failed check looks like or whether resubmission is safe, which keeps it below a 5.

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?

Three short sentences, front-loaded with purpose before auth details, with no padding. A couple of sentences are clipped fragments, but nothing is wasted.

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 submission tool with a required nested object, no output schema, and zero schema descriptions, the definition leaves the most important input shape (the `server` payload) undocumented. An agent knows how to authenticate but not what to send or what happens after submission.

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 0%, so the description must carry the load. It clarifies how `token` should be supplied (body or Bearer header on HTTP /mcp), but the required, nested `server` object is completely unexplained — no indication of what fields it must contain, despite being the only required parameter.

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 and resource ("Submit an MCP server for connectivity checks") and separates it from ownership/claiming by noting that domain proof is still required to claim. That boundary is useful given the claim_mcp_listing and confirm_mcp_claim siblings, though those tools are never named.

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?

The sentence "Domain proof is still required to claim ownership" implies this tool is not the claiming path, which is the only routing signal present. It never says explicitly when to use this versus claim_mcp_listing/confirm_mcp_claim, nor what prerequisites exist before submitting.

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