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

Annotations already cover the safe-read profile, yet the description adds genuinely new context: an authentication requirement (owner signed in) and a default-vs-full response behavior (one-line headline per app unless detail is true, to keep the answer short). It does not describe error behavior when the owner is not signed in, but the added auth and truncation context exceeds the annotation baseline.

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 opening anchor ("the same facts as the account dashboard's Overview") is a strong, front-loaded framing, but everything after it is a single run-on enumeration with parentheticals. The content is dense and useful, yet the lack of sentence breaks makes the list harder to scan than it needs to be.

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, the description carries the burden of explaining returns, and it does so thoroughly by naming each returned fact plus the detail-driven truncation behavior. Authentication is covered; only failure modes and how counts relate to the list_* siblings are left unaddressed, which are minor for a read-only overview.

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?

The single parameter has 100% schema coverage, and the description's "detail: true for every note" merely restates the schema's explanation of the same flag. It adds no new syntax, defaults, or edge-case meaning beyond what the schema already documents, so the baseline of 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 verb is implicit but the resource is concrete: an account overview aggregating app/license/site counts, license status, update end date, ownership, latest release notes, and next steps. That enumeration lets an agent know this is the summary-style read, distinct from per-entity siblings like get_license or list_sites. However, no sibling is named, so the differentiation must be inferred from the content list rather than stated.

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?

"Needs the owner signed in" is a real prerequisite and the only explicit usage condition. There is no guidance on when to prefer this aggregate overview over list_owned, list_sites, get_license, or check_updates, which overlap on the same facts. Usage must be inferred from the enumerated contents.

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