get_notion_session_users

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

Annotations already declare readOnlyHint=true, openWorldHint=true, and destructiveHint=false, covering safety. The description adds useful behavioral context beyond annotations: it reveals the endpoint ('POST /v2/getNotionSessionUsers {}') and specifies output ordering ('Display name/email first'), which helps the agent anticipate the response format.

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?

Three short sentences deliver purpose, usage trigger, and response behavior with no filler. The most important information is front-loaded, and every sentence contributes to correct invocation.

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 parameterless, read-only tool, the description is complete: it states the resource being listed, the invocation context, the endpoint, and the display format. No output schema exists, but the description compensates with the 'Display name/email first' guidance.

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 has zero parameters and schema description coverage is 100%, so there is no parameter ambiguity. Per the baseline rule for tools with no parameters, a score of 4 is appropriate; the description doesn't need to add parameter semantics that don't exist.

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 begins with a specific verb and resource: 'List Notion session users tied to this Calendar session.' This clearly identifies the tool's function and scope, distinguishing it from the many other get_* sibling tools by its Notion-specific purpose.

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 explicitly says 'Call when bridging Calendar ↔ Notion identity,' which gives a clear trigger condition for use. It does not explicitly mention when not to use it or name alternatives, but the guidance is direct and sufficient for this niche tool.

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