timers_get_video_countdown

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

No annotations are provided, so the description carries full burden. While 'Get' implies a read-only operation, the description doesn't disclose important behavioral aspects: whether this returns real-time or cached data, what format the information comes in, if there are any rate limits, or what happens if no video countdown exists. For a tool with zero annotation coverage, this is insufficient.

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 a single, efficient sentence that gets straight to the point without unnecessary words. It's appropriately sized for a simple retrieval tool, though it could potentially be more specific about what 'information' includes.

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 lack of annotations and output schema, the description should provide more context about what 'information' is returned and how it differs from other timer tools. For a tool in a complex ecosystem with many sibling tools, this minimal description leaves significant gaps in understanding when and how to use it effectively.

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 0 parameters with 100% schema description coverage, so the schema fully documents the parameter situation. The description doesn't need to compensate for any parameter gaps. A baseline of 4 is appropriate since there are no parameters to explain beyond what the schema already indicates.

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 the tool's purpose ('Get the video countdown timer information'), which is a clear verb+resource combination. However, it doesn't differentiate from sibling tools like 'timers_get', 'timers_get_all', or 'timers_get_current', leaving ambiguity about what specifically distinguishes this tool from other timer-related tools.

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 no guidance on when to use this tool versus alternatives. With multiple timer-related tools in the sibling list (timers_get, timers_get_all, timers_get_current, timers_get_system_time), there's no indication of when this specific video countdown tool is appropriate versus other timer retrieval tools.

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