Show an image in the meeting

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

With no annotations, the description must disclose behavioral traits. It only states the action and the public URL requirement, omitting side effects (e.g., whether it replaces the existing frame, persists, or affects ongoing video), permissions, or rate limits. The display_duration_seconds parameter is not explained, leaving behavioral ambiguity.

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, two short sentences with no filler. The critical action and the public URL requirement are front-loaded. It earns a high score for efficiency, though it could be slightly more structured by separating the action from the constraint.

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 no output schema, no annotations, and 0% schema coverage, the description is inadequate. It does not explain return values, error conditions, or the behavior of display_duration_seconds, leaving an agent unsure about invocation details. A mutation-like tool with multiple parameters needs far more context.

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 coverage is 0%, so the description must compensate. It adds meaning for img_url (must be public) but does not clarify bot_id (obvious from context) or display_duration_seconds (its purpose, optionality, or bounds). With 3 parameters and only partial coverage, the description falls short.

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 states a specific verb ('Display') and resource ('image/GIF as the bot's video frame'), clearly distinguishing it from sibling tools like send_chat_message. The public URL constraint adds precision without ambiguity.

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?

No guidance on when to use this tool versus alternatives. It does not mention scenarios, exclusions, or relationships to siblings like send_chat_message or schedule_calendar_bot. The only usage hint is the public URL requirement, which is about parameter constraints, not tool selection.

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