channel_sendSeen

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

No annotations are provided, so the description carries the full burden. It only restates the function's effect ('send seen status') without adding any behavioral traits, side effects, or requirements. It is essentially a tautology of the tool name.

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, front-loaded sentence that is concise and easy to parse. However, it is almost too sparse, lacking any additional context that could be included without hurting conciseness.

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?

While the tool is simple and parameters are well-documented, the description omits any contextual details such as when to use it, what happens after sending, or how it differs from similar tools. The lack of output schema shifts the burden to the description, which does not fulfill it.

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 input schema fully describes both parameters (chatId and sessionId) with examples and definitions, so the baseline of 3 applies. The description itself adds no parameter-specific meaning, but the schema covers this dimension adequately.

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 action ('Send seen status') and the target ('to the channel'). The '[Channel Chat]' prefix indicates the scope, distinguishing it from chat_sendSeen. However, it does not explain what 'seen status' means, which is a minor gap.

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 is provided on when to use this tool versus alternatives like chat_sendSeen or client_sendSeen. There are no prerequisites, exclusions, or context given for when this should be invoked.

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