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arr-mcps
by arr-mcps

bookshelf_update_customfilter

Update an existing custom filter in Bookshelf by providing its ID and the updated filter body.

Instructions

Update customfilter. WRITE: this modifies your Bookshelf instance.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYes
bodyNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

Annotations already declare readOnlyHint=false and destructiveHint=false. The description adds 'WRITE: this modifies your Bookshelf instance,' which reinforces the read/write nature but adds little new context. It does not disclose reversibility, required permissions, or side effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short but under-specified. The sentence 'Update customfilter' is tautological and adds no value beyond the tool name, making it an inefficient use of the description space.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with a required id and a flexible nested body object, the description is severely incomplete. It fails to explain what an update does, what body accepts, or how this relates to the many sibling tools. Even with an output schema present, the agent lacks essential context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description does not explain what 'id' or 'body' mean. The agent gets no semantic help for constructing parameters, especially the nested 'body' object.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states 'Update customfilter' which is a clear verb+resource, but it adds nothing beyond the tool name. It does not specify what updating a customfilter involves or distinguish it from other update tools.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

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 vs alternatives. The description only repeats the operation name, implying usage but offering no context about prerequisites or scenarios where this tool is appropriate.

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

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