gtag_config_create

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

The description explicitly labels it as a write operation with '[WRITE]' and mentions the confirm safety mechanism. Without annotations, it covers basic behavioral traits but lacks details on success response, error conditions, or idempotency.

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 extremely concise with a single sentence plus a prefix. It front-loads the write nature and prerequisites. Every word is earned, though it could be slightly more structured.

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 tool has 5 required parameters, no output schema, and many sibling tools, the description covers prerequisites and basic purpose but lacks expected output, error handling, or resource structure beyond schema examples. Adequate but incomplete.

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 descriptions cover all 5 parameters at 100% coverage. The description adds minimal value beyond the schema, stating to pass the resource as JSON string in bodyJson, which is already in the schema description. 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?

The description clearly states it creates a new GTM gtag config with the prefix '[WRITE]'. The verb 'Create' and resource 'gtag config' are specific, and it distinguishes from siblings like gtag_config_update or gtag_config_delete.

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 mentions the required environment variable and confirm flag, providing necessary conditions for use. However, it does not explicitly state when to use this tool versus alternatives like gtag_config_update, though the name implies creation.

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