insert_list_start

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

The description only states the basic action without revealing behavioral traits like whether existing content is shifted, if the insertion is prepend, or any side effects. No annotations exist to compensate.

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 sentence that directly states the purpose. It is concise but not overly terse, as it includes the key action and resource.

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?

Despite many sibling list tools, the description does not differentiate between them or explain when to use this specific tool. No output schema or behavioral details are provided, leaving the agent uninformed.

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 description adds no information about the parameters (doc_id, items, kind). With 0% schema coverage, the agent cannot infer what values to provide for items or kind beyond the default.

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 clearly states the action 'Insert' and the resource 'bulleted or numbered list' with a specific location 'at the start'. It distinguishes from siblings like insert_list_end and insert_list_at_paragraph by specifying the insertion point.

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?

No guidance is provided on when to use this tool versus alternatives such as insert_list_end or insert_list_at_paragraph. There is no mention of context or conditions for use.

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