ga4_list_configured_sites

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

No annotations are provided, so the description carries the full burden. It implies a read operation from a config file without side effects, but does not specify if authentication is needed, whether the config is local or remote, or if the output is sorted/limited. For a simple list tool, this is adequate but not richly transparent.

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, complete sentence of 14 words. Every word is necessary and there is no redundancy or filler.

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 no output schema and no annotations, the description is minimal. It does not describe the output format (e.g., list, table), the number of configured sites, or any error conditions. For a simple read tool it is adequate, but more context would improve an agent's understanding.

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?

With zero parameters and 100% schema coverage, the description adds value by specifying the data source (sites.config.json). This contextualizes the lack of parameters beyond the baseline of 4 for no-param tools.

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 shows configured sites and their GA4 property IDs from a specific source file (sites.config.json). The verb 'show' with resource 'configured sites and their GA4 property IDs' is specific and distinguishes it from sibling tools like gcp_list_projects or ga4_discover_properties.

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. There are many sibling tools for listing (gcp_list_projects) and GA4-related operations (ga4_discover_properties), but no indication of when sites.config.json is relevant or what distinguishes this tool.

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