get_active_participant

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

Annotations already declare the tool as read-only, idempotent, and non-destructive. The description adds useful behavioral context about automatic name resolution and conference scoping, but does not disclose error handling or what happens if a participant is not found. Given the annotations, the description adds moderate value.

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 concise (around 50 words) and well-structured, starting with a clear purpose and then detailing each parameter. Minor improvement could be to avoid list formatting and use prose, but it is effective and efficient.

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 the presence of an output schema and the tool's simplicity (2 parameters, no nested objects), the description is fairly complete. It covers parameter usage and context (resolution behavior, conference scoping). Missing are edge cases or typical usage scenarios, but overall adequate.

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?

With 0% schema description coverage, the description fully compensates by explaining participant_id can be UUID or display name with automatic resolution, and conference scopes the lookup. This adds critical meaning beyond the schema's type-only definitions.

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 retrieves a single active participant, explains the parameter flexibility (UUID or display name), and explicitly distinguishes from list_active_participants, making it easy to differentiate from siblings like get_history_participant.

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 provides clear guidance on when to use this tool (retrieve single active participant) and explains that list_active_participants is unnecessary if using display names. However, it does not explicitly state when not to use it or suggest alternatives like get_history_participant for historical data.

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