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

Annotations already declare read-only, idempotent, non-destructive, and closed-world behavior. The description adds two valuable guarantees beyond them: no payment is taken and no execution happens against the caller's own data — exactly the reassurance an agent needs before calling a 'price/plan' tool.

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 tight sentences with the deliverables and the safety guarantee front-loaded, no filler. Dense jargon ('one-time pack options', 'prepaid HTTP integration') costs it a point, but nothing is wasted.

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?

With no output schema and a 30-value required enum, the description should explain what the enum selects and what shape the returned recipe takes. It instead only enumerates deliverables, leaving the agent unable to map a request to the correct enum value.

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 carries the full burden, yet it explains neither parameter. 'Exact credits for a batch' loosely gestures at the 'calls' parameter, but the required 'tool' enum — 30 opaque values like 'json-change-set' and 'bounty-intel' — is left entirely unexplained, which is the single most important thing to document.

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 names a concrete resource — published sample input/output plus credit/pack pricing — and the title supplies the intent ('Plan a workflow before buying'). It is clearly a pre-purchase planning tool rather than an executor, though the enumeration of deliverables is more a list of outputs than a crisp statement of purpose.

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 'No payment or own-data execution occurs' implies this is the safe, non-committal step versus siblings like execute_paid_product or quote_autonomous_purchase, but no alternative is named and no explicit when-to-use condition is given. Usage must be inferred from the title.

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