manage_bookmark

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

With no annotations, the description carries the behavioral burden. It clearly discloses read vs. write operations, idempotent add, existence validation, DELETE semantics, and per-user/per-type scoping. It does not cover auth requirements or error behavior for removing nonexistent handles, but this is sufficient for a bookmark management 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 front-loaded with a concise summary, then organized into compact Arg and Returns sections. Every sentence adds useful operational detail such as HTTP verbs, idempotency, and defaults, with no filler or repetition.

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 minimal schema, absent annotations, and no output schema, the description is thorough: it documents all parameters, behavior, defaults, and the return structure. It provides enough context for an agent to select and invoke the tool correctly without additional external information.

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. It does so fully: namespace values are enumerated, all action values are listed, handle is described as required for add/remove, and instance is tied to get_instances with a default. This adds significant meaning beyond the bare schema.

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 opens with 'Read or edit bookmarks per object namespace,' which names a specific verb and resource. It then enumerates the exact actions (list_all, list, add, remove), making the tool's purpose unambiguous and distinguishing it from the other manage_* siblings.

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 gives clear per-action usage: what each action does, the corresponding HTTP endpoint, idempotency, default behavior, and the requirement for handle on add/remove. It does not explicitly compare against sibling tools, but the namespace scope and action semantics leave little ambiguity.

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