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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds genuinely new context beyond annotations by naming the payload fields returned (next run, last result, cost), though it omits ordering and pagination behavior for a list tool.

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?

One sentence with zero filler; the resource is front-loaded and the parenthetical clarifier is placed immediately after the ambiguous term it disambiguates.

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 no output schema, the description usefully previews the returned fields, and the single parameter is fully documented in the schema. It falls short of complete because ordering/pagination and the distinction from list_automations are left unstated.

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?

There is a single optional workspaceId parameter with 100% schema description coverage that already explains the default-to-scoped-workspace behavior. The description adds nothing about parameters, which is acceptable at full coverage but earns only the baseline.

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 and resource ('recurring Autopilot plans of the workspace') and glosses the concept with '(the "Repeat" option of Autopilot in the calendar)', which disambiguates it from generic automations conceptually. It does not however explicitly contrast with the near-name siblings list_automations or list_quick_automations, so an agent must still infer the boundary.

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?

Usage is implied by the verb 'list' plus the parenthetical defining what an Autopilot plan is, but there is no explicit when-to-use, when-not-to-use, or alternative named (e.g., list_automations vs this). Nothing tells the agent which of the several list_* plan/automation tools to pick.

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