Reminders Complete Reminder

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

The description contributes zero behavioral information. Annotations (openWorldHint=false, idempotentHint=false, destructiveHint=false) provide a minimal safety profile, but the description adds nothing about what happens when a reminder is completed, whether the change is reversible, or how it relates to the inverse operation reminders_uncomplete_reminder.

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 short, but the single sentence merely restates the tool name and adds no functional content, so it does not earn its place. This reads as under-specification rather than deliberate conciseness.

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 state-changing tool with one required parameter and no parameter documentation beyond the field title, the description is inadequate. It omits the core semantics (that the reminder is marked completed), gives no edge-case or error behavior, and fails to point to siblings such as reminders_uncomplete_reminder that form the inverse operation.

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 0%, so the description must compensate for the single reminder_id parameter but does not. It never explains what reminder_id represents, how to obtain a valid value (e.g., via reminders_list_reminders or reminders_get_reminder), or what format is expected. The only semantic hint is the schema's own field title 'Reminder Id.'

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, "Delegated Apple domain tool 'reminders_complete_reminder' exposed through Apple-Tools-MCP," merely restates the tool name and the bridge it is exposed through; it never states that the tool marks a reminder as completed. The action is only inferable from the name itself, and no distinction is drawn from siblings like reminders_update_reminder or reminders_uncomplete_reminder.

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?

There is no guidance on when to use this tool versus alternatives. The description says nothing about the appropriate scenario for completing a reminder, what prerequisites exist (e.g., an existing reminder ID), or how it differs from reminders_update_reminder, reminders_delete_reminder, or reminders_uncomplete_reminder. The sibling list is present but the description makes no attempt to differentiate.

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