apple_reminders_set_flagged

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

Annotations already declare readOnlyHint=false, idempotentHint=true, destructiveHint=true, and openWorldHint=true, so the safety profile is covered structurally. The description adds essentially nothing beyond them — no auth requirements, no statement of what is affected, and no reconciliation of why a flag toggle is marked destructive.

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?

A single front-loaded sentence with no waste, which is appropriate for a two-parameter toggle. It is terse rather than padded, though the brevity contributes to the specification gaps elsewhere.

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 mutation tool with no output schema, 0% parameter documentation, and a destructiveHint annotation, the description should say what changes, what the id refers to, and any preconditions. It omits all of this, so an agent cannot call it confidently beyond the trivial boolean toggle.

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 both required parameters are undocumented in the schema. The description only obliquely explains the boolean via 'set or clear' and says nothing about the 'id' (format, where it comes from, or whether it accepts a list identifier), leaving the coverage gap uncompensated.

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 ('Set or clear') and resource ('reminder flag'), which distinguishes it from close siblings like apple_reminders_set_completed and apple_reminders_set_alarm. It is clear but does not explicitly name those alternatives, so it stops short of a 5.

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 flag a reminder versus using set_completed or update, nor any prerequisites or note that the reminder must already exist. The agent must infer usage entirely from the tool name.

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