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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is established. The description adds useful behavioral context about what the tool does ('resolve ... options'), which metadata types it operates on, and provides concrete examples like Teams/SharePoint IDs. No contradiction with annotations.

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 the core purpose and then the exact invocation trigger. Every sentence earns its place, with no filler or repetition of schema details. The examples are useful but compact.

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?

Given a rich 100%-covered schema and safe annotation profile, the description is largely complete: it tells the agent what this tool is, when to invoke it, and what metadata shapes it applies to. It doesn't describe the return value shape or pagination behavior, but for a dropdown-options resolver that is a minor gap, not a blocking one.

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%, so all 8 parameters are already documented in detail. The description refers conceptually to parameters and metadata but does not add meaning beyond the schema. The baseline of 3 applies because the schema carries the load adequately.

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 uses a specific verb ('Resolve') and a precise resource ('live dynamic dropdown/list options for a connector operation parameter'). It clearly differentiates itself from sibling tools by mentioning the exact trigger (nextTool=get_live_dynamic_options) and the relevant metadata types (x-ms-dynamic-list/x-ms-dynamic-values), which an agent can distinguish from get_live_dynamic_properties.

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 gives an explicit, actionable condition: 'Use this when describe_live_connector returns a dynamic parameter with nextTool=get_live_dynamic_options.' This is strong context for when to call it. However, it does not explicitly state when not to use it or name an alternative tool as the preferred choice.

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