get_worldbook_entry

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

With no annotations, the description carries the burden of disclosure. 'Get' implies a non-mutating read, and 'including content' tells the agent the response includes the full entry content, which is useful. However, it does not disclose error behavior (e.g., not found) or any other context that would be helpful.

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 wasted words. It is syntactically clear and front-loads the verb and resource. However, it is minimal and could be slightly more structured, though it is not verbose.

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 simplicity (one param) and the presence of an output schema, the description does not need to detail return values. However, it lacks guidance on when to use the tool and does not explain the entry_id parameter, making it incomplete for an agent to select and invoke confidently.

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 has only one parameter (entry_id) with no description (0% coverage). The description does not mention the parameter at all, nor does it explain that the entry is retrieved by its ID. This leaves the agent without any additional meaning beyond the parameter name itself.

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 uses a specific verb ('Get') and resource ('worldbook entry'), and adds 'including content' to distinguish from list-only tools. However, it does not explicitly differentiate from siblings like list_worldbook_entries or search_worldbook_entries beyond implying retrieval by ID.

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?

No guidance is provided on when to use this tool versus alternatives. The description does not mention that this should be used when you already have an entry_id, nor does it reference sibling tools like search_worldbook_entries or list_worldbook_entries.

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