Submit STC Pay OTP

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

Lacks annotations. Description only says 'submit' and 'complete payment' without disclosing side effects, idempotency, authorization needs, or error behavior. Minimal behavioral context.

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 sentences, very concise with no fluff. However, it is under-specified and omits important context, making conciseness a trade-off with completeness.

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?

No output schema. Description does not cover return values, error states, pollCount behavior, or what happens after successful submission. Incomplete for a payment confirmation tool.

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 coverage is 67% (no description for pollCount). Description adds no parameter details beyond what schema provides, failing to compensate for the missing pollCount description.

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?

Description clearly states the action (submit OTP) and outcome (complete payment and place order). It distinguishes from siblings like ninja_initiate_stc_pay by implying finalization, but does not explicitly differentiate.

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?

Provides no guidance on when to use this tool versus alternatives, no prerequisites (e.g., must have initiated STC Pay first), and no context about ordering in a payment flow.

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