Reply to Comment

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

Annotations already indicate readOnlyHint=false (mutation), destructiveHint=false, idempotentHint=false. The description confirms it creates a reply but adds no additional behavioral context like required permissions, rate limits, or side effects beyond the return format. Minimal added value over 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 concise with a one-line purpose followed by a structured Args/Returns section. It is well-organized without unnecessary text, though the Args section could be combined with the one-liner for tighter prose.

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 is relatively simple, and the description covers purpose, parameters, and return format despite no output schema. However, it lacks context on prerequisites (e.g., file and comment existence) and potential side effects, leaving some gaps for a complete understanding.

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 100%, and the description repeats essentially the same parameter descriptions as the schema (e.g., 'The ID of the Google Doc' vs schema's 'The ID of the Google Doc containing the comment'). No new semantic meaning is added beyond what the schema provides.

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 'Reply to an existing comment on a Google Doc' with a specific verb and resource. It distinguishes from sibling tools like drive_create_comment (create top-level) and drive_resolve_comment (resolve), making its purpose unambiguous.

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 explicit guidance on when to use this tool versus alternatives (e.g., drive_create_comment). It does not mention prerequisites like obtaining comment_id from drive_list_comments or when to avoid replying. The context from sibling tools implies usage but is not explicit.

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