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

With no annotations to lean on, the description carries the full burden and does so well: it is free, it is read by humans rather than processed by software, it returns nothing beyond an acknowledgement, and it cannot complete, retry, or work around any task. These are exactly the behavioral facts an agent needs to avoid misusing it as a fallback.

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?

One tight paragraph led by the most decision-relevant fact ('Free.'), then purpose, then mechanism, then the exclusion list. Every clause earns its place; the negative list is the highest-value content and is included without padding.

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 two-parameter, no-output-schema, no-annotation tool, the definition covers purpose, permitted uses, prohibitions, cost, and return behavior. Nothing an agent needs in order to call it correctly or avoid abusing it is absent.

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 0%, so the description must compensate, and it does for both parameters: name is optional and omitting it yields anonymous feedback, and message is capped at 1000 characters. The name's 80-character maximum is left to the schema, but nothing essential is missing.

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 ('Sends a message to the human operators of this service') and enumerates the valid intents (bug report, documentation problem, suggestion). It is unmistakably distinct from the memory-oriented sibling tools.

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 explicit positive triggers (bug report, problem with tools/docs, suggestion) and an unusually thorough exclusion list: not for status updates, progress notes, task narration, error logs, or as a fallback when another tool or a payment fails. The agent knows exactly when to route here versus anywhere else.

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