Bookmark a post

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

Annotations already indicate readOnlyHint=false and openWorldHint=true, so the mutation/side-effect nature is covered. The description adds the HTTP method and required OAuth scope 'bookmark.write', which is useful, but it does not explain duplicate bookmark behavior, idempotency, or what changes occur beyond the obvious bookmarking action.

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 concise sentence with no filler, and the endpoint is front-loaded. It is appropriately short for a one-parameter tool, though it sacrifices useful context.

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 one parameter and no output schema, the description is too thin: it omits post_id semantics, mentions an endpoint path parameter ':id' that is not in the input schema, and gives no sense of result or failure behavior. An agent could likely invoke it, but only by relying heavily on the tool name and common sense.

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 0%, so the description must compensate for the undocumented parameter, but it does not explain how to obtain or format post_id. The parameter name is self-explanatory at a high level, but the tool still lacks explicit semantic guidance.

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 title 'Bookmark a post' plus the POST endpoint make the operation clear: this saves a post to the user's bookmarks. It is distinguishable from siblings like x_organic_unbookmark and x_organic_list_bookmarks, though it does not explicitly compare itself to them.

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 no guidance about when to use this tool versus alternatives such as x_organic_unbookmark or x_organic_list_bookmarks. The scope line implies an auth requirement, but there is no stated context, prerequisite, or exclusion.

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