ga4_update_account

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

No annotations provided, so the description carries full burden. It discloses it is a write operation requiring confirmation, but does not detail potential side effects, permissions, or whether the update is destructive or reversible. Adequate but not rich.

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?

Extremely concise: one sentence and a requirement statement. No filler words, every part earns its place.

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, the description does not mention return value or success indication. For a simple update, it covers basic purpose and prerequisites but lacks completeness regarding outcome or error conditions.

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 has 0% description coverage. The description adds meaning for 'displayName' and 'confirm' but omits 'accountId', which is self-explanatory. Provides some value beyond schema, but misses opportunity to clarify format or constraints for all parameters.

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 it updates a GA4 account's displayName, with the tag '[GA4 WRITE]' and explicit mention of the field. It distinguishes from numerous sibling update tools targeting different entities.

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?

Explicitly requires GA4_MCP_ENABLE_WRITES=true and confirm=true, providing clear context for when to use. Does not explicitly state when not to use, but the specificity makes it unambiguous.

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