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

No annotations are provided, so the description carries the burden. It does disclose beyond-schema behavior: result ordering (newest first) and payload content (status plus your endpoint's responses). It does not cover pagination behavior (limit only, no cursor), permissions/auth, or whether any state changes—though the GET equivalence implies read-only.

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 compact sentences, front-loaded with what the tool returns and its ordering. The API-reference sentence earns its place by anchoring format for API-familiar agents; nothing is redundant.

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?

An output schema exists, so return shape need not be explained. However, for a tool with three undocumented parameters and no annotations, the description should say more about limit/pagination and auth via api_key before it can be considered 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?

Schema coverage is 0%, and the description only maps webhook_id indirectly via the REST path. The limit parameter (default 50, max 200) and api_key are undocumented in both schema and description, so an agent must guess pagination and auth semantics.

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?

States the specific resource (a webhook's deliveries) with an ordering guarantee ('newest first') and mappings to the REST endpoint GET /v1/webhooks/{webhook_id}/deliveries. It is clearly distinguishable from siblings like list_webhooks, create_webhook, or test_webhook, though it leads with a noun phrase rather than an explicit verb.

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?

Usage is only implied: 'with status and your URL's answers' hints at inspecting delivery attempts (debugging webhook failures). No explicit when-to-use, no mention of when to prefer test_webhook or list_webhooks instead, and no prerequisites stated.

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