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

Beyond the annotations, the description explains the key behavioral effects: existing comments remain, nobody can add new ones, enabled true re-enables them, the action is admin/moderator-only, it runs without asking first, and it can be undone with one call. These details materially help an agent understand the consequences and permission requirements.

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 front-loaded and appropriately short for a simple toggle operation. The first two sentences are slightly repetitive in restating the off/on behavior, but every part contributes either purpose, effect, permission, or reversibility 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?

For a simple mutation tool with no output schema, the description covers the essential context: what changes, what stays the same, who can call it, and whether confirmation is required. No critical behavioral or usage detail appears missing.

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 100%, so the schema already documents group, post_id, and enabled. The description's note that enabled true turns comments back on largely repeats the schema, and it adds no extra syntax or format detail beyond that.

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 states a specific verb and resource: turning comments on a post off or back on. It clearly distinguishes the operation from siblings such as comment_on_post and pin_comment by focusing on enabling/disabling the comment facility itself.

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 gives clear context for when to use the tool: to turn post comments off or back on, matching the post menu's 'Turn off comments' action, and notes that this is for group admins and moderators. It does not name alternative tools or exclusions, but the intended use case is unambiguous.

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