bookshelf_create_customfilter

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

The description adds 'WRITE: this modifies your Bookshelf instance,' which reinforces the mutation aspect beyond the annotations (readOnlyHint=false, destructiveHint=false). While it provides some behavioral context, it lacks detail on potential side effects, auth requirements, or idempotency, so it only partially explains the 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 extremely concise, two short sentences, with no redundant information. It fronts the action ('Create customfilter') immediately and adds the WRITE warning in the second sentence. Every word earns its place, making it a model of brevity.

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?

Despite having an output schema, the description is incomplete because it does not clarify what a customfilter is, what the body parameter should contain, or any constraints. For a write tool with a free-form body, this lack of context makes the tool difficult to invoke correctly.

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% and the description provides no explanation of the 'body' parameter. The parameter is a generic object with additionalProperties=true, but the tool description gives no clue about expected fields or structure, leaving the agent without any 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 description clearly states 'Create customfilter' with a specific verb and resource, distinguishing it from sibling tools like update_customfilter, delete_customfilter, and get_customfilter. Even without additional context, the purpose is unambiguous.

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. It does not mention update_customfilter for modifying existing filters or indicate any prerequisites. The only hint is that it's a write operation, but there is no explicit when-to-use or exclusions.

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