create_chat_message_reply

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

No annotations are provided, so the description must fully disclose behavior. It only says 'Reply to a Chat message' without detailing side effects (e.g., does it create a new message thread? is it idempotent?), permissions required, or expected results. This leaves significant gaps for an agent.

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 extremely concise (one sentence), but it lacks structure or front-loading of key information. While brevity can be positive, here it omits critical details, making it under-informative rather than efficiently clear.

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 is insufficient for a tool with 4 parameters. It does not explain required inputs (message_id, content), possible return values, or error scenarios. The agent is left with too many unknowns.

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 has 50% description coverage (team_id and message_id have descriptions, but content and content_format do not). The description adds no information about parameters, missing an opportunity to clarify format constraints or fallback behavior. The agent must rely solely on the schema.

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 verb 'Reply' and the resource 'Chat message', with a version indicator '(v3)'. It does not explicitly distinguish from sibling tools like 'send_chat_message' or 'create_chat_direct_message', but the name itself is specific enough to convey the core action.

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 'send_chat_message' or 'create_chat_direct_message'. The description lacks context about prerequisites or typical use cases, forcing the agent to infer from the name alone.

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