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

Annotations already declare readOnlyHint=false, destructiveHint=false, and idempotentHint=true, so the safety and idempotency profile is covered by structured data. The description's 'Supports confirm and idempotency validation' largely restates that, though it usefully signals the dry-run pattern. It omits important behavior for a 12-param mutation: whether omitted fields are left unchanged, and any permission requirements.

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?

Two short, front-loaded sentences with no wasted words. The second sentence is somewhat redundant against the annotations and schema, which keeps it from being maximally lean, but the definition is easy to scan.

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?

No output schema exists, and annotations cover the safety profile, so the description need not explain returns. For a mutation tool with 10 optional fields, though, the description never clarifies partial-update semantics or what happens to fields that are omitted, which is the main open question an agent would have.

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%, so all 12 parameters including enums for priority and recurrencePattern are fully documented in the schema. The description adds essentially nothing beyond that (the confirm mention duplicates the schema text), so the baseline 3 is appropriate.

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 ('Update properties of an existing task'), which is clear enough to distinguish from create_task and get_tasks. However, it does not differentiate itself from near siblings like complete_task or update_farm_note, and gives no hint of which properties are updatable.

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 explicit when-to-use guidance, no when-not-to-use guidance, and no named alternatives. The reader must infer that this is for modifying an existing task rather than creating one or completing one. The mention of confirm/dry-run is a capability note, not usage guidance.

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