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

No annotations are provided, so the description carries the burden. It discloses the durable, retry-until-ack behavior, which is valuable, but it omits side effects, failure modes, and operational limits, leaving notable gaps.

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?

One sentence of 15 words, front-loaded with the core purpose and zero filler. Every word contributes to understanding the tool's function.

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?

For a tool with three parameters and no output schema, the description omits critical details about how buffering is configured (days, replay_hours), what the created frontdoor returns, and operational limits. This is insufficient for complex use cases.

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 only 33% (only 'target' has a description), and the description does not explain 'days' or 'replay_hours' at all, even though they are likely central to the buffering behavior. The description adds no meaning beyond the schema's 'target' field.

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 specific verbs 'buffers' and 'forwards' to a resource (webhooks to gateway), clearly distinguishing it from sibling tools like create_queue or create_inbox. The 'retry-until-ack' behavior adds a unique, concrete scope.

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 clear context that this tool is for durable webhook buffering with retry-until-ack, which implies when it should be used. However, it does not explicitly name alternatives or exclusion criteria, stopping short of full guidance.

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