Vaiz MCP

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 states the tool creates a task but doesn't mention required permissions, whether the operation is idempotent, error conditions, or what happens on success (e.g., returns a task ID). For a mutation tool with zero annotation coverage, this is a significant gap in behavioral context.

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 a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's appropriately sized and front-loaded, with zero wasted content, making it easy for an agent 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 tool that creates tasks with 12 nested parameters, no annotations, and no output schema, the description is inadequate. It doesn't explain the complex input structure, behavioral implications of creation, or what to expect upon success. Given the richness of the schema and lack of supporting structured data, the description should provide more context to be complete.

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 description mentions no parameters at all, while the input schema has 1 top-level parameter ('data') containing 12 nested properties. With 0% schema description coverage, the description fails to compensate by explaining what 'data' should contain, what 'boardId' represents, or the meaning of fields like 'priority' with enum values. This leaves parameters largely undocumented.

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 action ('Create a new task') and the resource ('in the Vaiz workspace'), providing a specific verb+resource combination. However, it doesn't differentiate this tool from sibling tools like 'edit_task' or 'get_task', which would require explicit comparison to achieve a score of 5.

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 no guidance on when to use this tool versus alternatives like 'edit_task' for modifying existing tasks or 'get_task' for retrieving task information. There's no mention of prerequisites, context, or exclusions, leaving the agent with minimal usage direction.

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