reply_to_comment

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

No annotations are provided, so the description carries full behavioral burden, yet it only discloses that user auth is required. It does not state that it creates a new comment, whether the reply is nested, whether it is reversible, or any rate/idempotency behavior.

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?

A single front-loaded sentence with no filler; the auth note is compactly placed in parentheses. Brevity is good, but it is brevity at the cost of substance rather than earned concision.

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?

With no annotations, no output schema, and 0% schema description coverage, the description is too thin for a state-changing tool. It omits what the parameters mean, what happens on success or failure, and when this is preferable to reply_to_post.

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 description coverage is 0% for two required parameters. The description implies comment_id is the target and content is the body, but adds no format, length, or ID-source guidance beyond the bare schema types.

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?

States a clear verb+resource ('Reply to a comment'), which distinguishes it from the sibling reply_to_post. It does not, however, say anything about the reply target's context or threading behavior.

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 only guidance is a parenthetical auth prerequisite; there is no when-to-use framing or mention of alternatives such as reply_to_post. An agent gets no help choosing among the many write siblings (edit_comment, delete_comment, vote, reply_to_post).

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