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

Annotations already mark the operation as non-read-only, idempotent, and non-destructive; the description is consistent with these and adds pause/resume semantics plus the schedule-pairing constraint. It does not disclose side effects such as whether unspecified fields are left unchanged, what gets overwritten, or what the response contains.

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 only two sentences, starts with the primary purpose, and includes an important constraint without filler. The ambiguous word 'noticed' keeps it from being perfectly clear, but the length and structure are appropriate.

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 7-parameter mutating tool with 0% schema description coverage, this is under-specified: it omits partial-update behavior, the relationship between pause/resume and the enabled field, timezone syntax, and schedule format expectations. Sibling names and output schema help, but the description alone is not enough for correct use.

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, but it only explains the schedule_kind/schedule_value relationship. The remaining parameters (id, name, prompt, enabled, timezone) receive no semantic explanation, and schedule_value's expected format is not described.

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 gives a clear verb and resource: 'Update, pause, or resume one ... agent task.' It is not a tautology and the operation is distinct from sibling create/delete/list tools. However, 'noticed agent task' is vague and the description does not clarify which task attributes besides timing can be changed.

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?

It gives one explicit usage rule: pass schedule_kind and schedule_value together when changing timing. It implies this tool is for modifying an existing task, but it does not state when to prefer it over create_scheduled_task or delete_scheduled_task, nor does it give any 'when not to use' guidance.

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