ga4_update_skadnetwork_conversion_value_schema

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

With no annotations provided, the description bears full burden. It covers the mutation nature, updateMask behavior, and required confirm flag. It could mention error handling or idempotency but is adequate.

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?

Three concise sentences: tag, action, usage detail, requirement. Front-loaded with key info, no 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?

Good coverage of usage and prerequisites. Missing mention of return value or error cases (no output schema), but given tool complexity, it is nearly complete.

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 coverage is 100% (all params described). The description adds value by explaining the updateMask derivation and override, going beyond the schema's parameter descriptions.

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 explicitly states 'Update the SKAdNetwork conversion value schema,' clearly identifying the verb (update) and resource. The '[GA4 WRITE]' tag and sibling tools for create/delete further differentiate its purpose.

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 advises to 'Pass only the fields to change' and explains updateMask derivation, along with prerequisites (GA4_MCP_ENABLE_WRITES=true and confirm=true). It does not explicitly state when not to use, but implied by siblings.

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