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Update brand voice

update_brand_voice

Set the default tone for the brand's Content Studio pages, or none to clear it. The page agent writes in it from its next turn; pages already written are not rewritten.

Input Schema

NameRequiredDescriptionDefault
toneYes
brandYesBrand or study: its ID from list_brands, or its exact name. A partial name is refused.
idempotency_keyYesA unique key for this intended action. Reuse it with identical arguments when retrying: the write is not made again, and the reply is the first call's resource as saved (replayed: true) with current status; read tools show the resource's current state. Use a new key for another action.

Output Schema

NameRequiredDescriptionDefault
dataYes
generated_atYesRFC 3339 time the response was made.
schema_versionYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / properties / data / properties / cost / properties / content_generations / description
      Previous value: -"Content Studio generations used from the plan's allowance."New value: +"Content Studio pages or outreach drafts used from the plan's allowance."
  2. Changed6 schema fields changed
    • changedInput schema / properties / brand / description
      Previous value: -"Brand or study: its ID from list_brands, or its name."New value: +"Brand or study: its ID from list_brands, or its exact name. A partial name is refused."
    • changedInput schema / properties / idempotency_key / description
      Previous value: -"A unique key for this intended action. Reuse it with identical arguments when retrying; use a new key for another action."New value: +"A unique key for this intended action. Reuse it with identical arguments when retrying: the write is not made again, and the reply is the first call's resource as saved (replayed: true) with current status; read tools show the resource's current state. Use a new key for another action."
    • changedOutput schema / properties / data / properties / brand / description
      Previous value: -"The brand written to; null for brand setup before approval."New value: +"The brand written to; null for start_brand_setup, which has no brand yet."
    • changedOutput schema / properties / data / properties / cost / properties / readiness_scans / description
      Previous value: -"Site readiness scans used from the plan's monthly allowance."New value: +"Full site readiness scans started; counted for the month, with no monthly allowance."
    • addedOutput schema / properties / data / properties / created_at
      Added value: +{
      +  "description": "Set on a replay: when the original call was made.",
      +  "type": "string"
      +}
    • changedOutput schema / properties / data / properties / replayed / description
      Previous value: -"True when this repeats an earlier call with the same idempotency_key."New value: +"True when this repeats an earlier call with the same idempotency_key. The write is not made again: resource is as first saved, status, progress and message are current, and the read tools show the resource's current state."
  3. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "data": {
      +      "additionalProperties": false,
      +      "properties": {
      +        "brand": {
      +          "additionalProperties": false,
      +          "description": "The brand written to; null for brand setup before approval.",
      +          "properties": {
      +            "id": {
      +              "type": "string"
      +            },
      +            "name": {
      +              "type": "string"
      +            },
      +            "url": {
      +              "description": "The brand's website, or empty when none is set.",
      +              "type": "string"
      +            }
      +          },
      +          "required": [
      +            "id",
      +            "name",
      +            "url"
      +          ],
      +          "type": [
      +            "null",
      +            "object"
      +          ]
      +        },
      +        "cost": {
      +          "additionalProperties": false,
      +          "description": "What the write used from the plan's capacity, allowances and model budget; null when nothing.",
      +          "properties": {
      +            "content_generations": {
      +              "description": "Content Studio generations used from the plan's allowance.",
      +              "type": "integer"
      +            },
      +            "model_budget": {
      +              "description": "Whether the call spends the organisation's AI model budget.",
      +              "type": "boolean"
      +            },
      +            "note": {
      +              "type": "string"
      +            },
      +            "prompt_capacity": {
      +              "description": "Active prompts added against the plan's prompt limit.",
      +              "type": "integer"
      +            },
      +            "queued_model_runs": {
      +              "description": "Answer collections queued; each uses model budget.",
      +              "type": "integer"
      +            },
      +            "readiness_checks": {
      +              "description": "Readiness re-checks used from the plan's monthly allowance.",
      +              "type": "integer"
      +            },
      +            "readiness_scans": {
      +              "description": "Site readiness scans used from the plan's monthly allowance.",
      +              "type": "integer"
      +            }
      +          },
      +          "required": [
      +            "model_budget",
      +            "content_generations",
      +            "readiness_scans",
      +            "readiness_checks",
      +            "prompt_capacity",
      +            "queued_model_runs",
      +            "note"
      +          ],
      +          "type": [
      +            "null",
      +            "object"
      +          ]
      +        },
      +        "message": {
      +          "description": "What happens next.",
      +          "type": "string"
      +        },
      +        "operation_id": {
      +          "description": "Pass to get_operation to follow the write.",
      +          "type": "string"
      +        },
      +        "poll_after_seconds": {
      +          "description": "While pending, how long to wait before calling get_operation; 0 otherwise.",
      +          "type": "integer"
      +        },
      +        "progress": {
      +          "additionalProperties": false,
      +          "description": "Set while the work runs.",
      +          "properties": {
      +            "done": {
      +              "type": "integer"
      +            },
      +            "message": {
      +              "type": "string"
      +            },
      +            "stage": {
      +              "type": "string"
      +            },
      +            "total": {
      +              "description": "0 when the total is not known.",
      +              "type": "integer"
      +            }
      +          },
      +          "required": [
      +            "stage",
      +            "done",
      +            "total",
      +            "message"
      +          ],
      +          "type": [
      +            "null",
      +            "object"
      +          ]
      +        },
      +        "replayed": {
      +          "description": "True when this repeats an earlier call with the same idempotency_key.",
      +          "type": "boolean"
      +        },
      +        "resource": {
      +          "additionalProperties": false,
      +          "properties": {
      +            "tone": {
      +              "description": "professional, confident, educational, conversational, executive, technical, or persuasive; empty when no default is set.",
      +              "type": "string"
      +            },
      +            "updated_at": {
      +              "description": "Empty when the tone was never set.",
      +              "type": "string"
      +            }
      +          },
      +          "required": [
      +            "tone",
      +            "updated_at"
      +          ],
      +          "type": "object"
      +        },
      +        "status": {
      +          "description": "completed: done. pending: saved, with work still running; call get_operation after poll_after_seconds. failed: the work after the write failed; message says why.",
      +          "type": "string"
      +        }
      +      },
      +      "required": [
      +        "operation_id",
      +        "status",
      +        "replayed",
      +        "brand",
      +        "resource",
      +        "progress",
      +        "poll_after_seconds",
      +        "message",
      +        "cost"
      +      ],
      +      "type": "object"
      +    },
      +    "generated_at": {
      +      "description": "RFC 3339 time the response was made.",
      +      "type": "string"
      +    },
      +    "schema_version": {
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "schema_version",
      +    "generated_at",
      +    "data"
      +  ],
      +  "type": "object"
      +}
  4. Added

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare this is a non-read-only, non-destructive, closed-world write, so safety is covered. The description adds genuinely useful behavior beyond that: the change applies to the page agent from its next turn, and existing pages are not retroactively rewritten — a non-obvious temporal/non-retroactive trait. It stops short of stating auth requirements or the reply shape.

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?

Two sentences, front-loaded with the core action, and every clause carries information (default target, clear option, activation timing, non-retroactivity). No filler.

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

Completeness4/5

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

An output schema exists, so return values need not be described, and annotations cover the safety profile. The description covers the effect timing and clearing semantics well; only peripheral details (permissions, error behavior for an invalid brand) are absent.

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 67%, with 'brand' and 'idempotency_key' richly documented in the schema. The description adds real meaning for the enum-only 'tone' parameter by explaining that 'none' clears the tone, which the raw enum list does not convey.

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?

The description names a specific verb ('Set') and a precise resource ('the default tone for the brand's Content Studio pages'), plus the clearing behavior. This scopes it distinctly from generic siblings like update_brand or update_opportunities without needing to name them.

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

Usage Guidelines3/5

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

Usage is implied by the resource ('set the default tone'), but there is no explicit when-to-use guidance, no named alternative (e.g., update_brand, edit_page), and no when-not-to-use or prerequisite conditions. It is adequate but leaves routing to inference.

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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