List Gradebook History Submissions

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

Annotations already declare readOnlyHint=true and openWorldHint=true, covering safety and unexpected data. The description adds the 'versioned' qualifier, which is useful behavioral context (implying multiple entries per submission over time), but it does not disclose return format, pagination, or ordering. It neither contradicts annotations nor adds substantial depth.

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?

A single, well-formed sentence with no redundancy. The core action and scoping are front-loaded, making it easy to parse quickly.

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 read-only list tool with four required parameters and no output schema, the description gives a clear high-level purpose but omits details like response structure or pagination. The openWorldHint implies unexpected data, but the description does not prepare the agent for what to do with it. It is adequate but not rich.

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 100%, so all four parameters (date, course_id, grader_id, assignment_id) are already documented. The description reinforces the role of grader_id and assignment_id but adds no new semantic details beyond the schema. Baseline 3 is appropriate.

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?

The description states a specific verb (list), resource (versioned submission history), and scoping (one grader, one assignment, one date). This clearly distinguishes it from other gradebook history tools like list_gradebook_history_days and get_gradebook_history_feed, which cover different granularities.

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 implies when to use it (when you need per-grader/per-assignment submission history on a specific date), but it does not explicitly mention alternatives or state when not to use it. With many sibling tools, explicit routing would be helpful, but the scoping is clear enough for an agent to infer its niche.

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