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

Adds substantial context beyond annotations: the reply is public and visible to the reviewer, it replaces any existing reply (consistent with destructiveHint=true and non-idempotent), and a specific scope is required. These are exactly the consequences an agent needs before a destructive open-world write.

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?

Three compact sentences, front-loaded with what the tool does, followed by impact and the confirmation guardrail. No filler.

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 rich annotations and an output schema, the description covers everything material: publication target, public visibility, replacement of prior content, auth scope, and the human-confirmation requirement.

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 coverage is 100%, so both parameters are documented, and the description adds a meaningful constraint by tying `text` to the exact user-approved string. Minor added value only, since review_id sourcing is already in the schema description.

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 specific verb and resource ("Publishes a developer reply") and scopes it to App Store or Google Play. It also discloses the replace-existing-reply behavior, which distinguishes it from the draft-oriented siblings.

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?

Gives clear preconditions: requires the replies:post scope and requires showing the user the exact text with explicit confirmation first. It does not explicitly name draft_reply/create_reply_draft as the non-publishing alternative, so sibling routing is left slightly to inference.

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