Update SharePoint List Column

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

With no annotations provided, the description carries the full burden. It discloses the required permission (Sites.Manage.All) and notes that only 'writable properties' can be updated, but does not describe what happens on error, whether it is idempotent, or what the return value is.

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 brief, with two sentences covering purpose and permission. The Chinese intent lines are redundant for English-speaking agents but serve a specific audience, making it slightly less concise than ideal.

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?

The tool has a flexible 'definition' object, no annotations, and no output schema. The description does not mention the return type or expected behavior after update, nor does it enumerate any example properties. This leaves the agent uncertain about the outcome and edge cases.

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 already provides descriptions for all four parameters (100% coverage), so the description adds nothing beyond what the schema states. The description does not explain the 'definition' object structure beyond the schema's 'Only the column properties to update.'

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 identifies the action ('Update'), the resource ('SharePoint list column'), and the scope ('writable properties'). This distinguishes it from sibling tools like sharepoint_create_column, sharepoint_delete_column, and sharepoint_update_list.

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 does not explicitly state when to use this tool over alternatives, nor does it mention exclusions. The permission requirement is noted, but no guidance on when to prefer this over related tools is given.

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