ga4_update_search_ads_360_link

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

Discloses mutation via '[GA4 WRITE]' and safety requirements (confirm, env variable). However, no annotations exist, and the description does not detail response behavior, error handling, or side effects beyond the bare minimum.

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?

Two sentences, no filler, front-loaded with purpose. Every sentence adds value and the structure is efficient.

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?

Covers purpose, usage, parameter hints, and prerequisites. Lacks details on response format and handling of partial updates, but with no output schema and given the complexity, it provides sufficient context for correct invocation.

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?

Adds practical guidance beyond the schema: explains how updateMask is derived from supplied fields and when to override it for nested paths. Also reinforces the confirm flag's purpose. Despite 100% schema coverage, the description enhances usability.

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 verb 'Update', the resource 'Search Ads 360 link', and the scope 'data-sharing flags via body', distinguishing it from create or other update tools in the sibling list.

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?

Provides clear guidance: pass only fields to change, updateMask derived automatically, and explicit requirements for GA4_MCP_ENABLE_WRITES=true and confirm=true. Lacks explicit when-not-to-use but implies create tool for creation.

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