clickup_create_threaded_comment

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

Beyond annotations (readOnlyHint=false, destructiveHint=false), the description adds that it posts to a specific endpoint, returns a confirmation string with ID/hist_id/timestamp, explains the nesting behavior, and notes error handling (404 for wrong comment_id). This fully discloses the operation's 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 well-structured with clear sections (endpoint, when to use/not, returns, example, error handling). It is somewhat lengthy but every part adds value; could be slightly more concise.

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 tool is a mutation with complex nesting semantics, the description covers endpoint, usage context, return format, error handling, and example—leaving no gaps. The presence of a rich output schema further supports completeness.

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 description does not describe parameters beyond an example. However, the input schema itself has thorough descriptions for all five properties, so the agent can rely on schema. Per guidelines, with schema coverage low (0% from description), baseline is 3; no additional value added.

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's purpose as 'Reply inside an existing comment's thread.' It specifies the endpoint and distinguishes itself from top-level comment creation, which is directly relevant given sibling tools like clickup_create_task_comment.

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 includes explicit 'When to Use' and 'When NOT to Use' sections, naming specific alternative tools (clickup_create_task_comment, etc.), providing clear decision guidance.

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