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

Annotations already declare idempotentHint=true, destructiveHint=false, readOnlyHint=false and openWorldHint=true, so the safety profile is largely covered. The retry note mostly restates idempotentHint, but it does usefully frame the write effect (grants/passes are minted) in payment terms. Nothing is said about failure modes, what happens if the txSignature is invalid, or whether a prior grant blocks re-verification.

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?

Two short sentences, front-loaded with the action and effect, with the retry caveat second. No filler; every clause carries information.

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?

Annotations carry the safety/idempotency profile and there is no output schema to explain, so the description need not cover return values. However, with three required, fully undocumented parameters and no mention of how to obtain a txSignature or what a successful verification yields, an agent is left guessing about inputs.

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% and all three parameters (requestId, txSignature, payerWallet) are undocumented in both schema and description. The description implies a Solana USDC payment signature exists but never maps it to txSignature or explains the role of requestId (likely the idempotency key) or payerWallet, so the description fails to compensate for the coverage gap.

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 pair (verify SPL USDC payment) and the concrete effects (issue AccessGrant + AccessPass), so the agent knows exactly what happens. It does not, however, differentiate itself from close siblings like temple_validate_pass or temple_consume_pass, which an agent could easily confuse with it.

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?

"Idempotente: reintenta verify, no pagues dos veces" gives one operational guideline (safe to retry), which is implied usage rather than a when-to-use rule. There is no statement of prerequisites, no condition distinguishing it from temple_validate_pass/temple_consume_pass, and no when-not-to-use guidance.

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