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

The description discloses key behavioral traits beyond annotations: analysis begins automatically after payment (side effect), the page is one-time (non-idempotent), confirmation is required, and the returned job_id is for polling. This provides rich operational context that annotations alone lack.

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 four sentences, each delivering essential information: purpose, precondition, output handling, and follow-up. No filler or redundancy; it is well-structured and front-loaded with the primary purpose.

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?

The description covers the critical workflow steps (confirmation, presenting the URL, polling) and leverages the existing output schema for return values. It lacks explicit failure/error handling or payment status edge cases, but for a tool with this schema richness, it is sufficiently complete.

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?

While schema descriptions cover both parameters fully (100% coverage), the description adds nuance to attestation_confirmed by explaining that one confirmation can cover a batch/folder/project scope. This enriches understanding of the boolean parameter beyond the schema's basic 'only after user confirms'.

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 tool generates a one-time Stripe payment page for users without a Pulse account, distinguishing it from sibling payment tools like purchase_token_pack. It also outlines the full flow (confirmation, payment, polling), leaving no ambiguity about its function.

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 specifies when to use the tool ('for users without a Pulse account') and includes mandatory preconditions (confirmation) and follow-up steps (present link, poll get_job_status). However, it does not explicitly name alternatives or when not to use it, though the context implies exclusions.

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