canvas_dashboard

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It describes what data is aggregated but doesn't mention important behavioral aspects: whether this is a read-only operation, if it requires authentication, potential rate limits, how fresh the data is, or what format the dashboard returns. For a tool with zero annotation coverage, this leaves significant gaps.

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 well-structured and efficient. It starts with the core purpose, lists the five aggregated components in a clear bullet-like format, and ends with usage guidance. Every sentence adds value with no wasted words. The formatting with dashes for the list makes it scannable.

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?

Given the tool has no parameters (simplifying the context) but also no annotations and no output schema, the description does an adequate job explaining what the tool provides. However, for a dashboard tool that aggregates multiple data types, more information about the return format, data freshness, or authentication requirements would be helpful. It's minimally viable but has clear gaps.

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?

The tool has 0 parameters with 100% schema description coverage. The description appropriately doesn't discuss parameters since none exist. It focuses instead on what the tool returns, which is appropriate for a parameterless tool. Baseline for 0 parameters is 4.

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 clearly states the tool's purpose: 'Get a comprehensive dashboard view of your Canvas activity' with specific aggregated components listed (upcoming assignments, missing submissions, etc.). It uses a specific verb ('Get') and resource ('dashboard view'), but doesn't explicitly differentiate from all sibling tools like 'canvas_grades_overview' or 'canvas_todo_list' which might provide overlapping information.

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 provides implied usage guidance: 'This is the best starting point for a study session' suggests when to use it. However, it doesn't explicitly state when NOT to use it or name specific alternatives among the many sibling tools. The guidance is helpful but not comprehensive.

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