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 covered. The description adds useful context about what is surfaced — the enabled/disabled state with the reason, the masked secret suffix, and last delivery outcome — but says nothing about pagination, result limits, or whether listing requires elevated permissions.

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?

A single dense sentence with zero filler, front-loaded on the resource. It is a sentence fragment without a leading verb, which slightly weakens orientation but wastes no words.

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 the return-value enumeration in the description is largely redundant and the description need not explain the payload shape. What remains missing is operational context: result size/pagination, permission requirements, and behavior when the workspace has no webhooks.

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?

Only one parameter (workspace_id) and schema description coverage is 100%, with the schema itself pointing to list_workspaces for the value. The description adds no additional semantics about the identifier, so the baseline 3 applies.

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 the specific resource (the workspace's webhook endpoints) and enumerates exactly which fields come back, so an agent knows it is a read/list of webhooks. It lacks an explicit verb and does not distinguish itself from create_webhook, delete_webhook, or send_test_webhook, leaving differentiation to the tool name and title.

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?

There is no when-to-use guidance, no prerequisites (e.g. workspace membership or admin rights), and no mention of the sibling alternatives such as send_test_webhook or delete_webhook. Usage is only inferable from the resource name.

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