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

Annotations already declare the safety profile (readOnly=false, idempotent=true, destructive=false, openWorld=true). The description adds two useful facts beyond them: an API key is required, and a reusable AccessPass is issued after verify. It does not disclose cost/amounts, what the TributeRequest payload contains, or failure behavior, so it earns credit but not full marks.

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, no filler, with the action statement front-loaded followed by the auth requirement and the downstream effect. Terse to the point of under-explanation, but nothing is redundant.

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 no-output-schema mutation tool this covers the auth requirement, payment asset and downstream artifact, which is more than many peers. It still omits what gets created server-side, any monetary amount or expiry for the TributeRequest, and error/retry semantics, leaving meaningful gaps for a payment-initiating call.

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% and the sole 'sku' parameter already carries a format hint with examples (hermes.pulse, session.24h). The description adds no meaning about sku selection or encoding beyond the schema, so baseline 3 applies.

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?

Names a specific resource (TributeRequest) and rail (SPL USDC Solana), and the title anchors it as the x402 payment-request step, so it is distinguishable from verify/consume siblings. However, 'Prepara TributeRequest' is bespoke jargon and the description never states in plain terms what preparing a tribute request accomplishes for the agent, leaving the core purpose only half clear.

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 clause 'Tras verify se emite AccessPass reutilizable' implies a workflow: this tool precedes verify, which yields a reusable AccessPass. That gives implied ordering, but there is no explicit when-to-use vs alternatives guidance against siblings like temple_verify or temple_budget, and no stated preconditions beyond the API key.

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