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

With annotations covering the safety profile, the description still adds substantial behavior: exact cost (0.10 USDC/call on Base mainnet via x402 exact), the 10 free signed-wallet calls per rolling 30 days, the two required auth headers and that X-Wever-Wallet-Proof binds the exact JSON arguments and path, and that both humans must approve in plain language before contact details enter either mailbox.

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 core action is front-loaded, but the text becomes a dense run-on mixing payment rails, header binding, consent, a contract-doc pointer, and an unrelated '/first-dates/' flow reference. Several sentences earn their place; the trailing ones add noise without invocation value.

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?

Covers auth, payment, consent and follow-up reads, which is a lot for a two-param tool with no output schema. But it never states what the call actually returns (the opt-in URL? a status object?) or what request_id is for, leaving an agent unsure how to handle the response.

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 parameter meaning and it largely doesn't. 'human_email' is conceptually covered ('connect to a human email'), but 'request_id' – required, with a pattern constraint – is never mentioned, nor its idempotency-key role despite idempotentHint=true.

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?

Specific verb+resource: connects an existing Wever Connect mailbox to a human email and returns their private opt-in page, with the endpoint named. It distinguishes itself from matchmaking-propose-intro and approve-or-decline-intro by being the setup step, though the purpose is diluted by payment and consent boilerplate that follows.

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 implies usage context ('On subsequent calls, read your opt-in status and criteria-compatible opaque profile IDs') and states prerequisites (existing mailbox credential, paid URL) – usage is implied rather than spelled out. It never says when to prefer this over the sibling propose-intro/approve-decline tools, so the agent must infer sequencing.

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