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Better Mealie MCP

Update Groups Labels By Item

update_groups_labels_by_item

Update a label's name, color, or group assignment for a specific item in Mealie.

Instructions

Update One

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYes
nameYes
colorNo
groupIdYes
item_idYes
accept-languageNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv3.20.1

TDQS

D1.5/5.0
Behavior1/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Update One' reveals only that some update occurs, with no mention of side effects, authorization requirements, reversibility, or response behavior.

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 it is under-specified rather than efficiently concise. 'Update One' contains no useful structured information and does not earn its place as a functional tool description.

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?

Given six parameters, required identifiers, an output schema, and a large sibling family, this description is grossly incomplete. An agent cannot determine what resource is updated, what the parameters mean, or what the update does.

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 adds no meaning to any of the six parameters. Required fields such as item_id, groupId, name, and id are left entirely unexplained, and even optional fields like color and accept-language receive no context.

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

Purpose2/5

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

The description 'Update One' provides only a vague verb and no explicit resource or scope. It restates the title's 'Update' without naming groups, labels, or items, and fails to distinguish this tool from sibling update tools such as update_organizers_categories_by_item or update_organizers_tags_by_item.

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?

There is no guidance on when to use this tool versus alternatives. No context is provided about when updates apply, when to prefer create/get/delete label endpoints, or what prerequisites exist, despite a large sibling tool list implying many similar operations.

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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