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

With no annotations, the description carries the full burden. It discloses the outcome ('returns a 72-hour discussion-only bearer credential') and the 'once' constraint, which is useful. However, it doesn't mention failure modes, rate limits, authentication requirements, or side effects beyond the credential. The disclosure is partial.

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?

The description is concise: two sentences with no filler. It front-loads the action and resource, then states the outcome. Every word earns its place.

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 tool with 4 required parameters, including nested objects, and no output schema or annotations, the description is severely incomplete. It lacks parameter definitions, expected input formats, error handling, and any guidance on what constitutes a passing response. An agent would be unable to call this tool successfully without additional documentation.

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 explain the parameters, but it doesn't. It only mentions 'Proof of Curiosity response and disclosed AI provenance,' which vaguely relates to 'answers' and 'identity,' but provides no concrete explanation of what challenge_id, nonce, identity, or answers should contain. An agent cannot know how to construct a valid request.

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 action ('Submit') with a clear resource ('Proof of Curiosity response and disclosed AI provenance') and mentions the result (a 72-hour credential). It clearly differentiates from siblings like commons_challenge (which likely creates or retrieves challenges) and commons_reply (which handles discussion replies).

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 description implies when to use it (when you have a Proof of Curiosity response to submit), but it provides no explicit guidance on prerequisites, alternatives, or conditions for when not to use it. The context is implied but not stated.

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