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

With no annotations, the description must carry the full behavioral burden. It only says 'prepare dismissing,' implying a non-destructive step, but it does not disclose side effects, prerequisites, or what the prepare step actually does. This is a significant gap for an agent.

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 a single, efficient sentence with no fluff, which is good for conciseness. However, it is so sparse that it sacrifices essential information. It is concise but under-specified, so it doesn't fully earn 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?

This is a prepare step in a two-step workflow (prepare/confirm). The description does not mention the confirm counterpart, what the prepare step returns, or any workflow context. With no output schema, the agent has no idea what to expect, making this incomplete for a tool with two required parameters.

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?

The description adds no parameter meaning beyond the schema. customer_id is already described, but recommendation_resource_name has no schema description and the tool description doesn't explain it. With 50% schema coverage, the description should compensate but does not.

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 action: preparing to dismiss a Google Ads recommendation. It is a specific verb+resource and distinguishes itself from the confirm counterpart by the 'prepare' suffix. However, it doesn't elaborate on what 'prepare' entails, so it's not fully explanatory.

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?

There is no guidance on when to use this tool versus alternatives. It doesn't mention that it should precede the dismiss_confirm tool or any conditions for selection. An agent has to infer the workflow from the naming convention, which is insufficient.

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