join_meeting

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

With only openWorldHint and destructiveHint in annotations, the description carries the behavioral burden and does so thoroughly. It reveals that the tool starts a recording, returns the recording id, is idempotent for an already-running recording, and only considers entry successful when the recording file appears and grows, with a bounded wait.

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 dense sentences, front-loaded with the core action and then layered with necessary caveats. There is no filler; every sentence contributes operational knowledge.

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?

Despite having no output schema, the description explains the return value (recording id), the eventual consistency behavior, the timeout fallback to meeting_status, and the no-second-bot guarantee. This is sufficient for an agent to invoke the tool correctly in most scenarios.

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%, so the description must compensate. It explains platform='auto' (detection by link) and wait_seconds (timeout cap), and url is contextual from 'по ссылке', but display_name is not mentioned and platform values are not enumerated.

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 starts with a specific action: silently join an online meeting and start recording. This clearly separates it from siblings like meeting_status and leave_meeting by naming the resource (meeting) and the exact operation (join + record).

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?

It gives clear invocation context: supported platforms, how platform='auto' works, and the timeout behavior. It even points to meeting_status for follow-up checks, though it does not explicitly contrast against other siblings such as transcribe_recording or leave_meeting.

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