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

Goes well beyond the annotations (destructiveHint=true, idempotentHint=false) by disclosing that the action is irreversible once dry_run=False, that it consumes one of a limited pool of attempts, and that the implementation is UNVERIFIED against a real quiz. These are exactly the risk details an agent needs before a destructive call.

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?

Front-loads the action, then the irreversibility warning, then the prerequisite, then the confirmation workflow. Every sentence carries a distinct obligation, though the dry_run default is stated twice (once here, once in the schema).

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?

An output schema exists so return values need no explanation; the description instead covers the things structured fields cannot: prerequisite verification, irreversibility, attempt consumption, and the human-confirmation gate. Nothing an agent needs to call this safely is missing.

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% and the dry_run description already explains the preview/commit toggle, so the baseline is 3. The top-level description adds workflow semantics the schema cannot express: the preview must be shown to the user and confirmed before the same call is repeated with dry_run=False.

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+resource combination, 'Start a new attempt at a quiz', that an agent can immediately distinguish from siblings such as process_quiz_attempt, save_quiz_attempt_responses, and get_quiz_attempt_data. The scope (new attempt vs. operating on an existing one) is unambiguous.

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?

Explicitly prescribes a two-step workflow: call with dry_run=True (default), show the preview to the user, then call again with dry_run=False only after explicit confirmation. It also names the prerequisite tool (get_quiz_access_information) and the exact fields to check (canattempt/preventaccessreasons).

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