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

No annotations are provided, so the description bears full responsibility. It discloses that the wheel verifies the signature matches the npub, relays to public relays, and that no nsec is held. It also states it is free. While it does not cover rate limits or error behavior, the core behavioral traits are well covered.

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 well-structured with a clear opening sentence and a concise explanation of the workflow. It uses line breaks for readability. Every sentence adds value, though it could be slightly more terse. No fluff.

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?

Given the tool's simplicity (2 params, no required, output schema exists), the description covers the main aspects: purpose, workflow, security model, and cost. It does not detail error handling or response, but the output schema likely covers that. It is sufficiently complete for an agent.

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 100%, so the schema already documents both parameters. The description adds some workflow context (e.g., 'client-signed event', 'patron's Nostr public key') but essentially restates the schema descriptions. The added value is marginal beyond what the schema provides, so baseline 3 is appropriate.

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 clearly states the verb 'Publish' and the resource 'CLIENT-SIGNED kind-0 profile to relays for an npub'. It distinguishes from sibling like 'get_nostr_profile' by emphasizing client-signing and no key custody. The purpose is specific and unambiguous.

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 explains the workflow where the frontend signs and passes the event, and that the wheel does not hold the nsec, implying usage is for client-signed profiles only. However, it does not explicitly state when not to use or mention alternatives, but given the sibling set, it's clear this is the sole publish tool.

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