updateSmartList

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

Annotations already provide idempotentHint=true, destructiveHint=false, and openWorldHint=true. The description adds 'Writes live data' and 'Fields omitted are untouched', which are useful behavioral insights beyond what annotations offer. No contradiction with annotations.

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 very concise with 3 sentences plus bullet points for 'Use when', 'Required', 'See also', and 'Returns'. Information is front-loaded and every sentence adds value with no redundancy.

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?

Given that there is no output schema, the description includes the return format. It covers the required parameter, partial update behavior, and usage context. However, it does not mention error handling or rate limits, which would be helpful for completeness.

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 50% (3 of 6 parameters have descriptions). The description adds the important note that 'Fields omitted are untouched' and highlights the required smart_list_id. However, it does not add detailed semantics for the remaining parameters beyond what the schema already provides, so it only partially compensates.

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 starts with 'Update a smart list' and clearly states it updates an existing record by ID. It distinguishes from siblings by explicitly mentioning createSmartList and deleteSmartList in the 'See also' section.

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 includes a 'Use when' section that states 'editing the filter criteria or schedule on a saved list', and a 'See also' section that names createSmartList (add new) and deleteSmartList (remove permanently), providing clear context for when to use this tool versus alternatives.

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