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

Annotations already declare readOnlyHint=false and openWorldHint=true, so the write/external nature is known. The description adds genuinely useful context beyond this: it reaches other people, requires per-call user confirmation, and needs the user's Cotlet API key with app access.

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 core action is front-loaded and the sentence sequence is logical. The confirmation message is stated twice ('By default you confirm each call...' and 'Reaches other people: confirm with the user before each call'), a minor redundancy that slightly dulls the otherwise tight structure.

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 3-parameter mutation with no output schema, the description covers purpose, modes, confirmation policy, and auth needs, which is sufficient to call it correctly. It stops short of describing the response/return behavior, but no output schema exists and this is minor.

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 the baseline is 3, but the description adds meaning to the visibility enum by explaining that a public response appears under the user's name for future campers, which is a consequence not captured by the schema's 'public or private' text.

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 ('Respond to a camper review') and immediately disambiguates the two modes (public vs private message). An agent knows exactly what the tool does and how the two visibility paths differ.

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?

Explains when public vs private is used and notes the default confirmation behavior plus the ability to disable it for this tool. It gives clear operating context, though it does not name sibling review-reply tools across other apps as alternatives (they are separate platforms, so less necessary).

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