Remove Bookmark

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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, and the description does not contradict them. The description adds minimal context by specifying 'authenticated user's bookmarks' and 'by its ID,' but it does not disclose additional behavioral details beyond what annotations already cover.

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, clear, front-loaded sentence with no filler. Every word contributes to the meaning.

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 one-param destructive tool with strong annotations, the description is adequate. It states the action, scope, and input method. It doesn't explain edge cases or return values, but with no output schema and idempotentHint present, this is not a significant gap.

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 schema describes tweet_id as 'The ID of the post' with 100% coverage. The description's phrase 'by its ID' adds no new semantic value beyond the schema, so the baseline of 3 applies.

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 action (remove), the resource (a post from bookmarks), the ownership scope (authenticated user's bookmarks), and the method (by ID). It distinguishes this from the sibling x_add_bookmark and x_get_my_bookmarks, making the tool's purpose unambiguous.

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 context: use this when you need to remove a specific bookmark belonging to the authenticated user. It does not explicitly name alternatives or exclusions, but the context is sufficient and aligns with the sibling set.

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