update_work_item_comment

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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so safety is covered structurally. The description adds one genuinely useful behavioral nuance by saying "Replace the text" — implying full overwrite of the existing body rather than a partial edit or append. It says nothing about permissions, reversibility, or what happens to a comment's metadata (author, timestamps).

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?

One front-loaded sentence with no filler or redundancy. It is efficient, though it is arguably too sparse to earn a top score — the single sentence carries no routing or constraint information.

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?

This is a destructive mutation with no output schema, and the description does not say what is returned on success, whether the call fails for non-authors, or whether the replacement is recoverable. For a destructive tool operating on user-generated content, more context is warranted.

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 coverage is only 50%: commentId is documented as a "Comment UUID" but the required `text` parameter has no description anywhere. The description does not state whether text is markdown, plain text, length-limited, or how an empty string is handled, so it fails to compensate for the coverage gap.

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 pairs a specific verb ("Replace") with a specific resource ("the text of a work item comment"), making it clear this mutates an existing comment's body rather than creating or deleting one. Siblings like create_work_item_comment and delete_work_item_comment are implicitly differentiated by the verb, though none are named.

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?

There is no when-to-use guidance, no prerequisites (e.g., must be the comment author or have edit permission), and no mention of alternatives such as delete+recreate. The agent must infer the usage context entirely from the verb.

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