reply_to_tweet

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

No annotations are provided, so the description carries the full burden. It indicates this is a write operation ('Reply to') but doesn't disclose behavioral traits like authentication requirements, rate limits, error conditions, or what happens if the tweet ID is invalid. The description adds some context about direct posting but lacks comprehensive behavioral details.

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 a single, efficient sentence that front-loads the key information ('Reply to an existing tweet directly') and adds necessary clarification ('without creating a draft'). Every word earns its place with zero waste.

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's moderate complexity (a write operation with 2 parameters), no annotations, and no output schema, the description is reasonably complete for purpose and usage but lacks behavioral details like error handling or response format. It compensates well for the absence of annotations in differentiating from siblings but could be more comprehensive.

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 parameters ('content' and 'reply_to_tweet_id'). The description doesn't add any meaning beyond what the schema provides, such as format examples or constraints. Baseline 3 is appropriate when the schema does all the work.

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 specific action ('Reply to an existing tweet') and resource ('tweet'), distinguishing it from siblings like 'create_draft_reply' by specifying 'directly (without creating a draft)'. This provides precise differentiation and avoids ambiguity.

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 explicitly states when to use this tool ('Reply to an existing tweet directly') and when not to use it ('without creating a draft'), clearly differentiating it from alternatives like 'create_draft_reply' and 'publish_draft'. This provides perfect guidance for tool selection.

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