ensure_active_update_set

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

The description reveals conditional behavior: creation only when no active update set is in progress. This adds context beyond annotations (idempotentHint=true) by explaining the triggering condition. Annotations are consistent; no contradiction.

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—one sentence plus a tag. It front-loads the core action ('Ensure an active Update Set exists') and contains no superfluous information. Every word earns 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?

With no output schema, the description should inform the agent about return values (e.g., the active update set ID). It does not mention what the tool returns, leaving a significant gap for a tool that likely provides a result. This incompleteness impacts usability.

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 description coverage is 100% for the single parameter, with a clear default and purpose. The tool description does not add further meaning beyond what is in the schema, so baseline score of 3 applies.

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 tool's purpose: ensuring an active Update Set exists and creating one if needed. It uses specific verbs 'ensure' and 'create' and distinguishes from sibling tools like 'create_update_set' (which always creates) and 'switch_update_set' (which switches to an existing one).

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 guidance on when to use this tool versus alternatives like 'create_update_set' or 'switch_update_set'. The description does not mention context or exclusion criteria, leaving the agent to infer without explicit support.

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