update_task_list

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

Annotations already declare destructiveHint=false and idempotentHint=true. The description adds that this is a rename operation, meaning it replaces the list title without deleting the list. It does not mention side effects on contained tasks or permissions, but annotations carry the core safety profile.

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 a single five-word sentence with no filler. The operation is front-loaded and every word earns its place.

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 simple two-parameter rename tool with annotations covering idempotency and non-destructiveness, the description plus schema provide enough to select and invoke it. The lack of an output schema and minimal depth about return values are minor gaps for this low-complexity tool.

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?

The schema documents task_list_id well, including how to obtain it. The 'Rename' wording implies the title parameter is the new list name, adding some meaning, but title has no direct schema description and the tool description does not elaborate on it. With 50% schema coverage, this is adequate but not fully compensating.

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?

Description states a specific verb ('Rename') and resource ('Google task list'), clearly distinguishing it from create_task_list, delete_task_list, and update_task. There is no ambiguity about what the tool does.

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?

The description makes the intended use clear: use this tool to rename a task list. It does not explicitly name when not to use it or point to alternatives, but the operation is unique among siblings and the context is intuitive.

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