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create_prompt_label

Creates a scoped label for tagging prompt versions such as production, staging, or experiments; returns the new label ID without assigning it to any versions.

Instructions

Create a prompt label for tagging prompt versions such as production, staging, or experiment. Requires either organisation_id or workspace_id to set scope, returns the new label id, and does not assign it to any versions yet.

Input Schema

NameRequiredDescriptionDefault
nameYesName of the label
color_codeNoHex format, e.g. '#FF5733'. Optional — omit for default color.
descriptionNoDescription of the label
workspace_idNoWorkspace ID to create the label in
organisation_idNoOrganisation ID to create the label in

Output Schema

NameRequiredDescriptionDefault
okYesWhether the tool call succeeded and returned structured data
dataNoStructured success payload when ok is true
errorNoStructured error payload when ok is false

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv1.0.9
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • changedOutput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  2. Addedv1.0.1
  3. Removed
  4. First observed

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already declare this is a non-readonly, non-destructive, non-idempotent mutation. The description adds genuinely new behavioral facts: a scope prerequisite (org or workspace) and the crucial disclosure that no versions are tagged yet, which an agent could otherwise assume.

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

Conciseness5/5

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

A single dense sentence that front-loads the purpose, then the scope requirement, then the post-condition. No filler and nothing important buried.

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

Completeness5/5

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

An output schema exists so return shape needn't be described, and the description still flags the new label id. Combined with the scope rule and the unassigned-state caveat, an agent has everything needed to call it correctly.

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

Parameters4/5

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

Schema coverage is 100%, so baseline is 3, but the description adds a constraint the schema omits: neither ID is marked required, yet one must be supplied to set scope. That is meaningful semantics beyond the structured fields.

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

Purpose5/5

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

States a specific verb+resource ('Create a prompt label') and immediately scopes it with concrete examples (production, staging, experiment), which distinguishes it from create_prompt, update_prompt_label, and the list/get/delete label siblings.

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

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives clear operating context — one of organisation_id/workspace_id must set the scope, and the label is created unassigned to versions. It doesn't explicitly route the agent to a sibling (e.g. update_prompt_label for attaching), so it stops short of full when/when-not guidance.

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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