reopenForumTopic

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It explicitly covers the required administrator permission and the success return value, which are the key non-obvious behavioral traits. It does not discuss failure modes or side effects beyond reopening, but the core behavior and prerequisites are transparent.

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, information-dense sentences. The primary action is front-loaded, and the permission requirement and return value are stated without repetition or filler. 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 tool with no output schema, the description covers the essential invocation requirements: what action is performed, required permissions, and the success return value. It omits edge behavior like error handling for already-open topics, but the core information needed to call the tool correctly is present.

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 the schema already fully documents both chat_id and message_thread_id. The description adds no parameter-specific meaning beyond the schema, matching the baseline expectation when the schema handles parameter documentation.

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?

States a specific action ('Reopen') on a specific resource ('a closed topic in a forum supergroup chat'), which clearly differentiates it from siblings like closeForumTopic and reopenGeneralForumTopic. The description specifies the object type and condition, so an agent can immediately understand what the tool accomplishes.

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 gives clear usage context: use it when a forum topic is closed and the bot has can_manage_topics rights. It does not explicitly name alternatives or edge cases (e.g., use reopenGeneralForumTopic for the general topic), which prevents a rating of 5.

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