createNotebookEntry

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

With no annotations, the description is the sole source of behavioral disclosure. It only says 'Adds content,' which implies mutation, but does not disclose side effects, required permissions, return values, or error behaviors. This is a significant gap for a write operation with no annotation-based safety cues.

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 sentence, front-loaded with the action, and contains no redundant information. It is concise and efficient, fitting within the typical character limit.

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 create operation with no output schema and no annotations, the description provides the core purpose but lacks contextual details such as what happens on success, whether the notebook_id must be validated, or any return value. It is minimally adequate but leaves room for missing 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?

The input schema already provides descriptions for all three parameters (name, notebook_id, text_content) with 100% coverage. The tool description adds no extra meaning beyond what the schema provides, so the baseline score 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 clearly states the action ('Adds content') and the target resource ('a new notebook entry in an existing notebook'). It distinguishes itself from sibling tools like createNewNotebook (which creates a new notebook rather than adding an entry to an existing one).

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 phrase 'in an existing notebook' implies the prerequisite that the notebook must already exist, but it does not explicitly state when to use this tool versus alternatives such as createNewNotebook. No exclusions or when-not-to-use guidance is provided.

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