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

Annotations already declare the readOnly/destructive/idempotent profile, yet the description adds non-obvious behavior: pages are workspace-scoped while availability and calendar choices apply across workspaces, draft URLs cannot accept bookings, and updated_at versions are returned for edits. It also supplies a guardrail ('never invent a page ID, calendar ID or URL'), which is genuinely useful call-site context beyond the structured fields.

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-loads what is read, then cleanly separates 'When to use' and 'Example'. The workspace-scope sentence is dense but earns its place; overall slightly long but well-structured and waste-free.

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?

An output schema exists, so return values need no explanation. Combined with scoping rules, when-to-use triggers, guardrails, and a guide reference, an agent has everything needed to select and call this correctly.

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?

No input parameters exist, so the baseline is 4. The mention of page IDs, calendar IDs, and URLs refers to data the tool surfaces for other tools rather than its own inputs, so it does not add parameter semantics here, but nothing is missing.

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 (read) and enumerates the exact resources: booking pages with shareable URLs, saved availability, and the calendar connection (status, provider, calendars). This is clearly distinguishable from siblings like save_booking_page, update_availability, and update_scheduling_calendars.

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 'When to use' section gives explicit triggers — user questions about booking links/hours/calendars, and before changing scheduling settings or declaring a calendar disconnected. It provides clear context but does not name the specific sibling tools (e.g., update_scheduling_calendars) it precedes, leaving the alternative unmapped by name.

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