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

Annotations cover readOnlyHint=false/destructiveHint=false, and the description adds genuinely new behavior: that pages written for the old outline are dropped, and that the response drives a page-by-page submission loop. The overwrite note sits in mild tension with destructiveHint=false, but replacing the outline is the documented, expected effect of the call rather than collateral damage, so this is disclosed context rather than a contradiction.

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 sentences, zero filler, with the destructive consequence front-loaded and the response protocol second. Nothing is wasted and nothing important is buried.

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 usefully explains what the reply contains and how it chains into submit_page, which is the key missing structured information. It leaves auth/guest access and failure behavior for an invalid deck_id unaddressed, but the core calling requirements are covered.

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 only 50% (deck_id and the top-level pages array carry no descriptions), and the description adds no parameter meaning at all — nothing about tone, guest_token, or the shape/limits of pages. The rich nested schema does much of the work, but the description does not compensate for the uncovered top-level parameters.

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 a specific verb+resource ('Save a new page-by-page outline for a deck') and immediately qualifies the scope with the replace semantics, which is what actually separates it from submit_page/submit_deck. An agent can tell what this does 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?

The second sentence gives the workflow context — after this call the reply yields PAGE 1'S BRIEF, and each submit_page reply yields the next page's — so the agent knows this is the entry point of the page loop. It stops short of naming alternatives or stating when NOT to use it.

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