sezzle_test_webhook_configuration

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is known. The description adds one key behavioral detail: it does not send a test event, which is consistent with the read-only/idempotent nature. However, it does not disclose operational details such as whether authentication is required, whether it makes network calls, or what the output looks like.

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 a single sentence that is efficient and front-loaded with the main action. It has no redundant filler. The structure is acceptable, though separating the 'no test event' caveat could improve readability slightly. It earns points for being concise without losing key 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?

The tool has a nested object parameter with five sub-fields and no output schema. The description is too sparse for this complexity. It does not explain the parameter semantics, the evaluation criteria in detail, or what the tool returns. Given the absence of schema descriptions and an output schema, the tool is under-described and an agent will likely struggle to invoke it correctly.

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 must fully explain the input structure. It mentions 'invalid signatures, missing events, and out-of-order evidence' which loosely map to the properties invalid_signature_count, missing_events, and out_of_order_count, but it does not explain the 'webhooks' container object, what each field means, or how they are used. The agent gets almost no guidance on constructing the required parameter.

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 uses a specific verb ('Evaluate') and identifies the resource (webhook subscriptions, invalid signatures, missing events, out-of-order evidence). It clearly distinguishes itself from siblings by noting it does 'without sending a test event.' However, the phrase 'out-of-order evidence' is somewhat unclear, and it could be more explicit that this evaluates webhook configuration.

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 phrase 'without sending a test event' implies this tool is for when you want to validate webhook behavior without the side effect of sending a test event. This gives a clear context, but there are no explicit alternatives, exclusions, or 'use when' / 'do not use when' statements. It relies on the reader to infer when this is the right tool.

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