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

With no annotations provided, the description carries the full behavioral burden. It discloses the return value ('accepted revision and permanent page link'), privacy ('private', 'No public publishing'), collaboration model ('collaboratively editable by channel members and agents'), and a scope constraint ('Standard rooms only'). It does not mention permissions or error behavior, but the schema's connection parameter covers some of that context.

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 three sentences with no filler. The first sentence states the core purpose, the second gives pre-use guidance, and the third provides return-value and constraint information. Every sentence earns its place and the description is appropriately front-loaded.

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?

Given there is no output schema, the description appropriately explains what the tool returns. It also covers the essential context for a create operation: privacy, collaboration, duplicate avoidance, and publishing constraints. Minor ambiguities like what qualifies as a 'standard room' and the absence of an explicit duplicate-handling path keep it from being fully complete.

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 100%, so the baseline is 3. The description reinforces the overall tool purpose but does not add parameter-specific meaning beyond the schema, such as the idempotency key semantics or the HTML constraints, both of which are already fully documented in the input 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?

The description states a specific action ('Create a private channel page'), the resource (page), and key attributes (private, collaboratively editable by members and agents). It clearly distinguishes from siblings like page_update, pages_list, and page_get by naming creation and the constraints of no public publishing and standard rooms only.

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 instructs agents to 'Search pages_list first to avoid duplicates', giving concrete pre-use guidance. It also provides when-not-to-use constraints with 'No public publishing. Standard rooms only.' However, it does not explicitly name page_update as the alternative when a page already exists, so it stops short of a full when/when-not comparison.

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