prepare_exam_browser_step

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

With no annotations, the description usefully discloses that the tool only validates and returns a plan rather than executing it, and it mentions re-checking the current question and cache validity. However, it does not describe validation failure behavior, permission assumptions, or other operational constraints beyond those high-level traits.

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 description is short and front-loads the core behavior in the first sentence. It is somewhat dense with jargon such as 'readback' and 'platform-confirmed cache,' but it avoids unnecessary 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 complex browser/exam orchestration tool with no annotations and 0% schema description coverage, the description is incomplete. The output schema can carry the action-plan return details, but the required identifiers and validation workflow constraints remain under-explained.

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% across five parameters, and the description only gives partial semantics for answer and review. It does not explain the required run_id, observation_id, or question_token parameters, so it does not compensate for the schema 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?

It states a specific action: validate a reviewed answer and return a UI action plan, explicitly noting that it never executes the plan. This clearly distinguishes execution from preparation, though it does not name the closest sibling alternatives such as prepare_exam_answer_plan or confirm_exam_browser_draft.

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 clear usage context: the browser controller must re-check the current question before normal UI actions and supply independent navigation/reload readback for draft confirmation. It also explains the cache path when answer and review are omitted together, though it does not explicitly state when-not cases or alternatives.

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