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

Annotations already declare destructiveHint=true and non-idempotent, and the description adds meaningful context beyond them: the approval gate via confirmed=true and the fact that writes are never auto-retried. That retry/approval behavior is not visible in the annotations and is directly useful to an agent.

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 first two sentences are redundant restatements of the title, wasting the front-loaded position. The remaining sentences are dense and useful, so the description is compact overall but not efficiently led.

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 destructive write with a nested body of nine fields and no output schema, the description covers the safety/approval story but leaves most body field semantics and the response shape to the schema. Adequate but with clear gaps.

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?

Coverage is 50% with a nested body; the description notes optional linking to opportunity, property, or person, which echoes schema field descriptions, and explains the confirmed flag's meaning. It adds little about due_date, assigned_to_user_id, or the retired assigned_to_agent_id field, so a baseline 3 is right.

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 names a specific verb+resource (create a task), but opens with 'Create task. Create a new task.' which merely repeats the name and adds nothing. It does not distinguish this tool from siblings like dealmachine_patch_tasks_id or dealmachine_get_tasks, so an agent gets only the bare purpose.

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 states a real gating condition ('Requires user approval and confirmed=true') which implies when the call is legitimate, but gives no guidance on choosing this tool over patch_tasks_id or on when task creation is appropriate. Usage is implied rather than directed.

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