Get VWO custom widget

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

Annotations already indicate readOnlyHint=true and openWorldHint=true, so the description's mention of 'Get' reinforces read-only behavior. No additional behavioral details (e.g., what 'full definition' entails) are provided beyond what annotations cover.

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?

Single sentence of 13 words, front-loaded with verb and resource. No unnecessary words, very efficient.

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 get tool with no output schema, the description does not specify what fields constitute the 'full definition.' While annotations cover read-only and open-world, the description could be more complete by indicating the return structure or typical fields.

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%, with thorough descriptions for all three parameters. The tool description adds no extra meaning beyond the schema, so 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?

Description clearly states 'Get the full definition of one custom widget in a VWO workspace.' It uses a specific verb ('Get') and resource ('full definition of one custom widget'), and distinguishes from siblings like vwo_list_custom_widgets (list) and vwo_new_custom_widget (create).

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 main description provides no guidance on when to use this tool versus alternatives. While the schema parameter descriptions hint at using vwo_list_custom_widgets for unknown IDs, the description itself lacks explicit usage instructions.

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