ga4_key_events_list

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

The description declares the tool is read-only and lists the return fields (event name, counting method, deletability). However, with no annotations provided, it fails to disclose other behavioral traits such as pagination behavior, rate limits, or authorization requirements.

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 concise with just two sentences. It is front-loaded with the primary purpose and adds a brief detail about the return format without any extraneous text.

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 full schema coverage and no output schema, the description adequately covers the tool's purpose and return information. It could mention pagination behavior but the schema descriptions already cover that for the relevant parameters.

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 input schema has 100% description coverage for all parameters. The tool description adds no additional parameter meaning beyond what the schema already provides, so a baseline score of 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 clearly states the tool lists key events (formerly conversion events) for a GA4 property, specifying the resource and action. However, it does not explicitly distinguish itself from sibling tools like ga4_properties_list or ga4_custom_dimensions_list, which also list GA4 resources.

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, nor does it mention when not to use it. It simply describes what it does without contextual usage advice.

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