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

No annotations are provided, so the description carries the burden of behavioral disclosure. It mentions the cost (50 tokens) and the prerequisite of connected accounts, but does not discuss side effects, error handling, idempotency, or what happens if the repost does not exist. It adds some value but leaves gaps typical of a mutation tool.

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 three sentences, front-loaded with the primary purpose, followed by a critical prerequisite and cost. Every sentence earns its place with no filler or redundancy.

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 tool with a rich output schema and fully described parameters, the description covers purpose, prerequisite, account targeting, and cost. It lacks explicit notes on error behavior or reversibility, but the provided context is sufficient for typical use.

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 description adds no new parameter meaning beyond what the input schema already provides. The schema already explains the user_id/user_name targeting logic, and the description merely repeats that. Baseline of 3 is appropriate.

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 starts with a specific verb+resource: 'Remove a repost for a connected X account.' It clearly differentiates from siblings like repost_post (which creates a repost) and delete_post (which deletes a post), making the tool's purpose unmistakable.

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 provides clear usage context: instructs to call x-twitter.connected_accounts first and explains how to target an account (pass user_id/user_name or omit both for default). It does not explicitly contrast with alternatives or state when-not-to-use, but the prerequisite and targeting guidance offer strong operational direction.

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