update_sp_ad_entities

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

Annotations are absent, making description the sole source. It mentions 'guarded write' and 'preview', but does not explain guarded write behavior, side effects, or permissions needed. The 'introspection stub' note is a limitation, not behavioral insight.

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, front-loaded with purpose. Every word adds value; no redundancy. Highly efficient for the intended message.

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?

Despite 5 parameters and no output schema, description is minimal. Lacks return value explanation, error handling, or success criteria. The 'introspection stub' context partially excuses incompleteness, but leaves gaps for an AI agent.

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 100% description coverage, so baseline is 3. Description adds no significant meaning beyond schema; 'preview or update/archive' paraphrases boolean parameters but doesn't clarify their interplay or defaults.

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?

Description clearly states the tool previews or updates/archives Sponsored Products ad groups and product ads. It provides a specific verb and resource, but doesn't strongly differentiate from sibling tools like 'archive_sp_ad_groups' or 'update_sp_ad_group_state'.

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?

No explicit guidance on when to use this tool versus alternatives. The mention of 'introspection stub' is a technical limitation, not a usage guideline. Lacks context for selection among sibling update/archive tools.

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