create_activity

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It clearly states the important side effect that the activity appears for everyone the album is shared with, and also notes the return value. It does not cover permissions or reversibility, but the main behavioral traits are disclosed.

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 well-structured and front-loaded: a one-sentence purpose, a clear side-effect note, a compact parameter list, and a return line. Every sentence adds useful information, with no filler or repetition.

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?

For a simple creation tool, the description covers the purpose, target selection, all parameters, a key side effect, and the return format. The lack of annotations is compensated by the explicit behavior disclosure and complete argument semantics.

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 0%, but the description's Args section fully documents all four parameters: album_id, comment, asset_id, and like. It adds meaningful relationships, such as 'Leave empty when sending a like' and 'attach to asset instead of the album', which go well beyond the raw schema.

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 states a specific action ('Post a comment (or a like)') and a clear resource ('on a shared album or on one asset in it'). It distinguishes itself from related siblings like list_activities and delete_activity by describing exactly what kind of activity is created.

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 implies when to use the tool by explaining its purpose and target scope, and clarifies the album vs. asset distinction. However, it does not explicitly state when not to use it or name alternative tools for related actions.

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