Create a channel or supergroup

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

The only annotation is openWorldHint, and the description adds no behavioral context beyond the fact that it creates something. It does not disclose permission requirements, serialization effects, account selection implications, or what happens after creation (e.g., returns chat info).

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, focused sentence that front-loads the action and uses inline code for the key flags. Every word earns its place, making it concise without unnecessary fluff.

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?

With 6 parameters, no output schema, and no behavioral details, the description is insufficient for an agent to fully understand the tool's side effects, return format, or account selection. The description's focus on only two flags leaves significant gaps in operational 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 description coverage is only 17%, with only forum having a description. The description clarifies broadcast and megagroup flags and their role in determining channel type, but it leaves accountId, about, and title semantics unexplained, failing to compensate for the low schema coverage.

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 creates a broadcast channel or supergroup, with specific flags distinguishing the two. This is an explicit verb+resource combination that differentiates it from sibling create_* tools like create_invite_link or create_topic.

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 such as migrate_chat or create_folder. There is no mention of prerequisites, exclusions, or specific use cases beyond the inherent creation action.

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