Create List

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

The annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=false, so the description does not have to explain that the tool is a non-destructive local write. The description adds the meaningful nuance that a search-query-backed smart list can be created, but it says nothing about name collisions, required permissions, or whether parent nesting must already exist.

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?

It is a single front-loaded sentence with no filler, and the two creation modes are introduced early. It is efficient but extremely sparse for a five-parameter write tool, leaving the reader to infer everything else from the schema.

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?

An output schema exists, so return values need not be explained, and the schema documents the important distinguishing parameter. Weaknesses remain for a creation tool: nothing is said about duplicate-name behavior, whether parent must already exist, or what happens to the smart query syntax on failure.

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 60%: icon, parent, and smart_query are documented inline, while name and description have no schema text. The description reinforces that smart_query is what makes a list 'smart', but it adds no format, naming, or parent-resolution detail beyond what the schema already states, so the schema does most of the work.

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 specific verb ('Create') and resource ('a bookmark list'), and it names the two creation modes: a plain bookmark list or a smart list defined by a search query. An agent can tell this apart from add_to_list or list_lists, but the description does not explicitly say it never mutates existing lists or how it differs from those siblings.

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?

Use of the tool is implied, and phrasing 'or a smart list defined by a search query' hints at a second mode. There is no explicit when-to-use or when-not-to-use guidance, no statement about duplicates, and no pointer to a sibling such as list_lists for reading existing lists.

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