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

Annotations already declare readOnlyHint=false, destructiveHint=false, openWorldHint=false, so the safety profile is covered structurally. The description adds essentially nothing beyond restating the operation -- it doesn't say whether the change is reversible, what effect it has on in-flight predictions, or any auth requirements. Only the bare status toggle is conveyed.

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?

Two compact sentences, front-loaded with the operation and followed by the endpoint. No wasted words, though the endpoint path is largely redundant with the tool name.

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 mutation tool with a nested body object, no output schema, and 0% schema description coverage, the description is too thin. It omits parameter meaning, side effects, and return behavior, leaving the agent without enough to call it correctly and interpret results.

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 0%, so the description carries the full burden of explaining the two required parameters. It explains neither the meaning of 'id' nor that 'body.status' accepts ACTIVE/INACTIVE. The enum is only discoverable in the schema, and the description compensates for none of the gap.

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: 'Update prediction API key status.' Combined with the PUT path, an agent understands this toggles the status of a prediction API key. It doesn't name or distinguish itself from the many sibling status tools (put_bot_signal_prediction_id_status, put_webhook_bot_id_status, etc.), so it falls short of full sibling differentiation.

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?

The description gives no when-to-use guidance, no prerequisites, and no alternatives. It never explains when an agent should change key status versus creating a new key (post_api_prediction) or deleting one (delete_api_prediction_id). Usage must be entirely inferred.

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