list_properties

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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint=false, so the safety profile is covered. The description adds that results are 'all' properties for an account (no filtering), which is useful, but it is silent on what an empty/omitted account_id does — a real behavioral question given the schema default is "".

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?

One front-loaded sentence with no filler or redundancy. It is efficient, though the terseness borders on under-specification given the undocumented parameter behavior.

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?

A simple one-parameter read tool with annotations and no output schema, so the bar is modest. Still, the description does not indicate what a returned property looks like (IDs needed to call get_ga4_data next), leaving a gap in the discovery workflow.

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 0% for the single parameter, so the description carries the burden. It implies account_id scopes the listing but never explains the default empty-string case (list across all accounts?) or the expected ID format. This is a meaningful gap for a discovery tool.

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?

States a specific verb and resource: list all GA4 properties scoped to an account. That is enough to separate it from siblings like get_property_schema or setup_ga4_access, though the description never names those siblings or states the relationship to them.

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?

No guidance on when to call this versus alternatives such as setup_ga4_access or get_property_schema, and no stated prerequisite (e.g. that GA4 access must already be configured). The agent must infer the discovery-then-fetch workflow from sibling names alone.

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