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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, but the description adds useful behavioral context beyond them: signing secrets are never returned, and handoffs:read permission is required. It does not cover pagination, rate limits, or error behavior, but it meaningfully improves the safety and auth picture.

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 three front-loaded sentences with no wasted text. It first states what is returned, then adds a security caveat, then covers authorization and parameter behavior.

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 simple read-only tool with one optional parameter and no output schema, the description gives enough context about return content, secret handling, permission requirements, and project selection. Exact response shape is not detailed, but the core information an agent needs to invoke it correctly is present.

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 compensate for the sole projectId parameter. It usefully states that projectId is optional and selects an owned OAuth account project, but it does not explain what happens when projectId is omitted or how the selection affects the returned webhook metadata.

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 and resource: it returns active webhook metadata and recent delivery metadata for a project. This clearly distinguishes it from sibling operations like configure_webhook and delete_webhook, which mutate rather than read webhook state.

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 description states the required handoffs:read permission and explains that projectId optionally selects an owned OAuth account project. However, it does not explicitly say when to use this tool instead of configure_webhook or delete_webhook, so usage is largely implied by the verb 'Returns'.

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