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

Annotations cover the safety profile (readOnlyHint=false, destructiveHint=true, idempotentHint=true), and the description usefully adds what each mode does: publishing validates timezone/calendar readiness, pausing leaves existing meetings and guest links intact, and no invitations are sent. It does not explain the version conflict behavior (what happens if expected_updated_at is stale), which is the main remaining gap.

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?

Front-loaded with the core action and its effects, followed by a usage section and example. Slightly repetitive — the 'When to use' paragraph largely restates the opening two sentences — but nothing is wasteful enough to hurt.

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 an output schema present and full parameter coverage, the description needn't explain return values. It covers side effects, prerequisites and readiness checks well; behavior on concurrent/stale writes is the one under-addressed aspect.

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 coverage is 100%, so the three parameters are fully documented by the schema. The description references 'its current version' but adds no syntax or edge-case detail (e.g., conflict/stale-version handling) beyond what the schema already provides, matching the baseline 3.

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 verb pair and resource ('Publish or pause your booking page') and immediately contrasts the two modes' effects. It is readily distinguishable from siblings like save_booking_page or get_scheduling_settings.

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 gives a clear 'When to use' section plus a prerequisite ('Read the page's current version first') and a concrete example. It does not name alternative tools (e.g., save_booking_page) or explicitly say when not to use this one, so it falls short of a 5.

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