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

Annotations already declare readOnlyHint, openWorldHint=false and destructiveHint=false, so the safety profile is covered. The description still adds value by describing the return states ('authorized artist roster or an honest empty account state') and by enumerating the write actions it deliberately will not perform, which clarifies the scope boundary. It stops short of richer behavioral detail, but the annotation coverage lowers the bar.

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?

Four sentences, front-loaded with the purpose and empty-state behavior before the exclusions and routing hint. Slightly list-heavy in the negative clause ('create links, change campaigns, start purchases or connect accounts'), but every clause still earns its place by defining scope.

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 zero parameters, an output schema present, and annotations covering the safety profile, the description only needs to convey purpose, scope boundaries and when to use it — all of which it does. An agent has everything required to invoke it correctly.

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 tool takes zero parameters, so there is no parameter semantics to document and the baseline is 4. The description correctly adds no redundant parameter talk.

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?

States a specific verb and resource ('Open the read-only Dynamoi workspace') and immediately scopes it to browsing artists, campaigns, Smart Links and observed results. It also differentiates itself from the list/get siblings by directing follow-up detail lookups to 'individual read tools.'

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?

Gives an explicit when ('when the user wants to browse their existing artists, campaigns, Smart Links and observed results in ChatGPT'), explicit when-nots ('Does not create links, change campaigns, start purchases or connect accounts'), and names the alternative path for follow-up details. Nothing is left to inference.

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