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

Annotations already mark this as non-read-only, open-world, non-idempotent, and destructive. The description adds concrete behavioral context beyond those hints: the reply is public at once, cannot be unsent here, requires human-approved text, is capped at 2,200 characters, and is unavailable in an unclaimed sandbox. These details align with the destructive/non-idempotent annotations rather than contradicting them.

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 with the action and resource, then adds the most important constraints without padding. Every sentence contributes either platform scope, safety guidance, length limit, or sandbox availability.

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?

It covers the main behavioral risks for this mutation: immediacy, irreversibility, approval requirements, platform scope, length limit, and sandbox restriction. However, with four of five parameters lacking schema descriptions and no output schema, it still leaves ID provenance and failure behavior unaddressed.

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 20%, with only workspace_id documented as coming from list_workspaces. The description repeats the 2,200-character limit for text and implies the reply relates to a post and comment, but it does not explain how to obtain or format post_id, channel_id, or comment_id, leaving most required parameters semantically thin.

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 gives a specific verb and resource: 'Publishes a reply ... to a comment on a post Shager published,' and it names the supported platforms. That is enough to distinguish it from siblings such as delete_comment, hide_comment, list_comments, and create_auto_reply without opening another schema.

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 clearly states relevant usage conditions: the reply is public immediately, cannot be unsent here, must use human-approved text, and is unavailable in an unclaimed sandbox. It does not explicitly compare itself with alternatives like create_auto_reply or hide_comment, so it stops short of full when-to-use guidance.

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