unbanChatSenderChat

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

With no annotations provided, the description carries the burden of behavioral disclosure. It communicates the administrative permission requirement and the success return value ('Returns True on success'), which is useful. However, it does not mention failure behavior, idempotency, or side effects beyond unbanning, leaving some ambiguity for a tool with no annotation safety profile.

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?

Two concise sentences with no filler. The core action is front-loaded, and the necessary prerequisite and return value are stated efficiently. Every sentence earns its place.

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?

For a simple two-parameter action, the description covers the essential context: target scope, admin requirement, and success return. It could optionally clarify that this is specifically for sender chats as opposed to regular members, but the wording already implies this. Overall, adequate for an agent to call the tool correctly.

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 100%, so both parameters are already well-documented in the schema. The description adds no additional parameter-level meaning beyond what the schema provides. Baseline 3 is appropriate because the schema fully handles parameter semantics.

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 uses a specific verb ('Unban') and a clear resource ('previously banned channel chat in a supergroup or channel'), which precisely identifies what the tool does. It also naturally distinguishes it from sibling tools like unbanChatMember by explicitly scoping it to channel chats.

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 clear context: the action applies to banned channel chats in supergroups or channels, and it states the prerequisite that the bot must be an administrator with appropriate rights. It does not explicitly name alternatives or exclusions, but the context is sufficient for an agent to understand when to use this tool.

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