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

The description discloses the notification side effect on recap creation, which is beyond what the annotations convey (readOnlyHint false, idempotentHint false). It also mentions the prerequisite check. There is no contradiction with annotations. It could mention other side effects, but the key behavioral trait is well covered.

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 a bit lengthy but every sentence contributes: the core action, the required parameter, the recap configuration, the side effect, and the prerequisite. It is front-loaded with the primary purpose and does not waste words. Could be tightened slightly, but it remains effective.

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?

While the description covers the recap use case and prerequisite, the empty input schema leaves the actual parameter contract undefined. An agent cannot reliably know whether to pass `name` or the recap fields, making the tool incomplete for correct invocation. The description also does not mention other document types or general page creation semantics, so it is not fully contextual.

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 description explicitly names required parameters (`name`) and optional fields (`documentType`, `ref`) for the recap scenario, which is valuable. However, the input schema is an empty object, creating a direct conflict: the schema implies no parameters are accepted, while the description requires `name`. This inconsistency is misleading and undermines the parameter semantics, as an agent might not pass `name` due to the schema or might pass it and have it ignored. The description does not resolve this contradiction.

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 clearly states the verb 'create' and the resource 'page', and it distinguishes the tool from siblings by describing the specific 'player-recap' use case and the side effect of notifications. An agent can tell this apart from play_update_page, play_delete_page, and play_get_page.

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?

It explicitly explains when to use the tool (to create a page, especially a session recap) and gives a concrete prerequisite: call play_check_recap_exists first to avoid duplicates. This is clear, actionable guidance that leaves no ambiguity about the correct invocation path.

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