Delete a comment reaction

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

Annotations indicate destructiveHint=true and readOnlyHint=false, so the description correctly aligns with a mutating, destructive operation. It adds the author-only restriction, which is behavioral context beyond the annotations. No contradiction exists.

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 sentence conveys the endpoint, the key restriction, and the resource. No filler or redundancy; all content is purposeful and front-loaded.

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?

For a simple delete operation with three required parameters and no output schema, the description covers the essential information: what it does and a key constraint. It doesn't mention success/error responses, but annotations and the simplicity of the action make this acceptable.

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 only 33% (only 'file' has a description). The description mentions comment_id and emoji in the endpoint URL but does not explain their formats or semantics, such as what the emoji value should be (code vs. character) or how comment_id is structured. With low coverage, the description fails to compensate.

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 (DELETE) and the specific resource (comment reaction) targeted by file key, comment_id, and emoji. It distinguishes from sibling tools like post_comment_reaction and get_comment_reactions by indicating deletion. The author-only restriction adds precise scope.

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?

It provides a key usage condition (only the author can delete), which informs when this tool is applicable. While it doesn't explicitly contrast with alternatives, the deletion action is unambiguous and the sibling set makes the choice clear. The absence of explicit alternative routing is a minor gap.

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