reply_to_comment

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

The description reveals that the reply appears under the parent comment and creates a threaded conversation, but it does not disclose other behavioral traits such as whether the document is auto-saved, if the reply is immediately visible, or any side effects. Since no annotations are provided, the description carries the full burden and could be more detailed.

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 extremely concise with two short, front-loaded sentences. Every word adds value, explaining exactly what the tool does and where the result appears. No unnecessary 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?

Given the tool has 4 parameters, no output schema, and no annotations, the description covers the basic purpose and behavior but omits details about the return value (e.g., success indication or reply ID), error conditions, or prerequisite state (e.g., document must be open). It is adequate but not fully complete.

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 input schema already provides full descriptions for all 4 parameters (100% coverage). The description adds no additional semantic value beyond the schema's own descriptions, so a baseline score of 3 is appropriate.

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 ('Reply to an existing comment') and the resource ('comment'). It explains the result ('creating a threaded conversation', 'appears under the parent comment') and distinguishes from siblings like 'add_comment' (which likely adds a new top-level comment) and 'read_comments'.

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 implies that this tool is for replying to an existing comment (i.e., you need a parent comment ID), but it does not explicitly state when to use this tool versus alternatives like 'add_comment' for new top-level comments or 'delete_comment'. No when-not-to-use guidance is provided.

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