Manage Reminder List

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

Annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false, so the safety profile is covered structurally. The description confirms the destructive path via 'delete' but adds nothing beyond that — no note on whether deletion is permanent, whether a list must be empty first, or what happens to contained reminders.

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 prose is tight and front-loaded, leading with the action set. The Args block duplicates the schema, which is slightly redundant, but it keeps the conditional 'required for rename' rule visible without forcing a schema read.

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?

For a three-action mutation tool with no output schema and annotations covering the destructive/idempotency profile, the description is nearly complete — the action set, target resource, and conditional parameter rule are all present. Only the post-delete consequences of affecting contained reminders are unaddressed.

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% and the schema documents all three parameters, including the enum and the conditional note for new_name. The Args block in the description largely mirrors the schema, adding only marginal clarity, so the baseline of 3 applies.

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 specific verbs (create, rename, delete) against a specific resource type (Apple Reminder list), and the resource distinguishes it cleanly from siblings like add_reminder and show_reminders that operate on individual reminders rather than lists.

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 second sentence gives an explicit when-to-use trigger ('when the user wants to organize their reminders by creating new lists, renaming existing ones, or removing lists'). It stops short of naming an alternative tool for adjacent needs such as listing or editing reminders, but the context is unambiguous.

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