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

Annotations already indicate this is a non-read-only, non-destructive operation. The description adds that the tool returns a WRITING BRIEF and instructs the agent to follow it, which is useful. However, it does not disclose side effects (e.g., whether repeated calls overwrite the outline), authentication requirements, or failure behavior. It is consistent with annotations.

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?

Three crisp sentences: action first, return value second, next step third. No redundant phrases; every sentence earns its place.

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?

The description explains the return value and next step, which is important given no output schema. But it omits prerequisites (must have a valid deck_id from create_deck, or guest_token for anonymous decks) and any error conditions, leaving the agent to infer the workflow from sibling tool names. For a tool with a complex pages schema and no output schema, this is a noticeable gap.

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 50%, and the description does not compensate. It adds minimal meaning only for pages ('page-by-page') and deck ('for a deck'), while saying nothing about the optional tone or guest_token parameters, both of which lack clear semantics in the description. The two required parameters (deck_id, pages) have no top-level schema descriptions, and the description does not clarify them.

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 ('Save') and resource ('page-by-page outline for a deck'), and clarifies it returns the WRITING BRIEF. It distinguishes from sibling submit_deck by explicitly positioning it as the step before submission, and from create_deck by focusing on saving an existing outline.

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?

Provides clear workflow context: save the outline, get the WRITING BRIEF, follow it, then call submit_deck. It names the next sibling explicitly, but does not state exclusions or alternatives (e.g., when to use get_brief instead) or prerequisites like having called create_deck first.

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