sendook_reply_to_message

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

The description adds that it 'maintains the conversation thread context' and 'the reply will be threaded,' which is beyond annotations. However, it does not disclose side effects, authentication needs, rate limits, or error behavior.

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 front-loaded with the main purpose and is reasonably concise. The Args section is repetitive but necessary given low schema coverage. Minor redundancy could be trimmed.

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?

The description includes the return type (confirmation string with reply message ID) and threading behavior. It does not cover error scenarios or prerequisites like message existence, but overall it is adequate for a simple reply tool.

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?

Despite schema description coverage being 0%, the description's Args section fully enumerates parameters with clear descriptions, including optionality of text and html. This compensates for the lack of schema descriptions.

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 'Reply to an existing message in a conversation thread' with a specific verb and resource. It distinguishes from sibling tools like sendook_send_message by emphasizing threading context.

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 implies usage for threaded replies but does not explicitly state when to use this tool versus alternatives (e.g., sendook_send_message for new messages). No prerequisites or exclusions are provided.

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