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

Goes beyond the annotations by disclosing that this never creates visitor consent, that confirmation must follow an exact reviewed action, and that server keys live only in the web workspace and must never enter tool logs. These are real operational constraints the annotations (readOnly/destructive/idempotent hints only) don't convey.

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?

Front-loads the action set, then per-action inputs, then safety constraints and the guide link. Every sentence carries information; the security caveat is slightly peripheral to invocation but justifiable for a write tool.

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?

With no output schema and a nested payload, the description covers the action-dependent requirements, the confirmation precondition, and where to find the fuller workflow. Minor gaps remain on what a successful verify/disable returns, but the caller has enough to invoke 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 coverage is 67% and the payload is an opaque nested object with only a generic description, so the description's per-action requirements (origin/name for create; siteId/revision for verify and disable) add genuine disambiguation beyond the schema.

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?

Names three specific verbs (create, verify, disable) against a concrete resource (a website connection), immediately distinguishing it from the read-only siblings inspect_email_websites and inspect_email_website_results. An agent can tell what the tool mutates without opening the schema.

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?

States the gating condition ('after confirmation') and that create vs verify/disable need different inputs, plus points to a workflow guide resource. It does not explicitly say when to prefer this over the inspection siblings, but the mutating scope is clear.

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