category_upsert

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

No annotations are provided, so the description must carry the full burden. It does disclose the key behavioral trait of idempotency. However, it does not mention permissions, rate limits, side effects, or whether the tool strictly creates or also updates. This leaves some uncertainty about its exact behavior.

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 concise at three sentences and front-loads the primary action. It avoids unnecessary verbosity but could be slightly more structured to prioritize key information.

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 has only two parameters and no output schema, the description covers the basic usage (idempotency, prerequisite for pages). However, it is missing details such as what the tool returns, whether it updates or only creates, and any constraints on input values.

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 should add meaning for the two parameters (name and journal). It only vaguely implies that journal is the parent entity and gives examples for name. It does not explain what each parameter specifically represents or any constraints, such as allowed formats or relationship to other resources.

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 states 'Create a category within a journal' which clearly defines the action and resource. It also notes idempotency, which aligns well with the 'upsert' semantics. However, it does not explicitly mention that it can also update an existing category, which is implied by the tool name but not stated.

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 context by stating that categories must exist before pages can reference them and lists common category names. However, it does not explicitly state when to use this tool versus alternatives (e.g., category_list or category_delete) nor when not to use it.

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