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Update brand kit

update_brand_kit
Destructive

Change fields on a brand kit; fields left out keep their value. Set review_state 'confirmed' only after the user has looked at an imported kit and approved it. Returns the updated kit.

Input Schema

NameRequiredDescriptionDefault
nameNoThe brand name.
fontsNo
colorsNoHex colors (#rrggbb). Any left out keep their current value.
domainNoThe brand website host, like acme.com.
radiusNoCorner radius in px, rem or em, like 8px.
dark_modeNo
documentsNoHow this brand lays out PDFs. Any left out use the default.
brand_kit_idYesA brand_kit_id from list_brand_kits.
review_stateNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • changedInput schema / properties / fonts / properties / body / enum
      Previous value: -[
      -  "Archivo",
      -  "Barlow",
      -  "Bebas Neue",
      -  "Bricolage Grotesque",
      -  "Cormorant Garamond",
      -  "Crimson Text",
      -  "DM Sans",
      -  "DM Serif Display",
      -  "EB Garamond",
      -  "Figtree",
      -  "Fira Code",
      -  "Fraunces",
      -  "Geist",
      -  "Georgia",
      -  "IBM Plex Mono",
      -  "IBM Plex Sans",
      -  "Inter",
      -  "JetBrains Mono",
      -  "Karla",
      -  "Lato",
      -  "Libre Baskerville",
      -  "Lora",
      -  "Manrope",
      -  "Merriweather",
      -  "Montserrat",
      -  "Mulish",
      -  "Newsreader",
      -  "Nunito",
      -  "Open Sans",
      -  "Oswald",
      -  "Outfit",
      -  "PT Serif",
      -  "Playfair Display",
      -  "Plus Jakarta Sans",
      -  "Poppins",
      -  "Raleway",
      -  "Roboto",
      -  "Rubik",
      -  "Sora",
      -  "Source Sans 3",
      -  "Space Grotesk",
      -  "Urbanist",
      -  "Work Sans",
      -  "system-ui"
      -]New value: +[
      +  "Albert Sans",
      +  "Archivo",
      +  "Arimo",
      +  "Assistant",
      +  "Barlow",
      +  "Bebas Neue",
      +  "Bricolage Grotesque",
      +  "Cabin",
      +  "Cal Sans",
      +  "Cormorant Garamond",
      +  "Crimson Text",
      +  "DM Sans",
      +  "DM Serif Display",
      +  "EB Garamond",
      +  "Exo 2",
      +  "Figtree",
      +  "Fira Code",
      +  "Fraunces",
      +  "Funnel Display",
      +  "Geist",
      +  "Georgia",
      +  "Golos Text",
      +  "Heebo",
      +  "Hind",
      +  "IBM Plex Mono",
      +  "IBM Plex Sans",
      +  "Instrument Sans",
      +  "Instrument Serif",
      +  "Inter",
      +  "JetBrains Mono",
      +  "Josefin Sans",
      +  "Kanit",
      +  "Karla",
      +  "Lato",
      +  "League Spartan",
      +  "Lexend",
      +  "Libre Baskerville",
      +  "Libre Caslon Text",
      +  "Lora",
      +  "Manrope",
      +  "Merriweather",
      +  "Merriweather Sans",
      +  "Montserrat",
      +  "Mulish",
      +  "Newsreader",
      +  "Noto Sans",
      +  "Nunito",
      +  "Onest",
      +  "Open Sans",
      +  "Oswald",
      +  "Outfit",
      +  "PT Serif",
      +  "Playfair Display",
      +  "Plus Jakarta Sans",
      +  "Poppins",
      +  "Public Sans",
      +  "Quicksand",
      +  "Raleway",
      +  "Red Hat Display",
      +  "Roboto",
      +  "Rubik",
      +  "Sanchez",
      +  "Sora",
      +  "Source Sans 3",
      +  "Space Grotesk",
      +  "Syne",
      +  "Titillium Web",
      +  "Urbanist",
      +  "Work Sans",
      +  "system-ui"
      +]
    • changedInput schema / properties / fonts / properties / heading / enum
      Previous value: -[
      -  "Archivo",
      -  "Barlow",
      -  "Bebas Neue",
      -  "Bricolage Grotesque",
      -  "Cormorant Garamond",
      -  "Crimson Text",
      -  "DM Sans",
      -  "DM Serif Display",
      -  "EB Garamond",
      -  "Figtree",
      -  "Fira Code",
      -  "Fraunces",
      -  "Geist",
      -  "Georgia",
      -  "IBM Plex Mono",
      -  "IBM Plex Sans",
      -  "Inter",
      -  "JetBrains Mono",
      -  "Karla",
      -  "Lato",
      -  "Libre Baskerville",
      -  "Lora",
      -  "Manrope",
      -  "Merriweather",
      -  "Montserrat",
      -  "Mulish",
      -  "Newsreader",
      -  "Nunito",
      -  "Open Sans",
      -  "Oswald",
      -  "Outfit",
      -  "PT Serif",
      -  "Playfair Display",
      -  "Plus Jakarta Sans",
      -  "Poppins",
      -  "Raleway",
      -  "Roboto",
      -  "Rubik",
      -  "Sora",
      -  "Source Sans 3",
      -  "Space Grotesk",
      -  "Urbanist",
      -  "Work Sans",
      -  "system-ui"
      -]New value: +[
      +  "Albert Sans",
      +  "Archivo",
      +  "Arimo",
      +  "Assistant",
      +  "Barlow",
      +  "Bebas Neue",
      +  "Bricolage Grotesque",
      +  "Cabin",
      +  "Cal Sans",
      +  "Cormorant Garamond",
      +  "Crimson Text",
      +  "DM Sans",
      +  "DM Serif Display",
      +  "EB Garamond",
      +  "Exo 2",
      +  "Figtree",
      +  "Fira Code",
      +  "Fraunces",
      +  "Funnel Display",
      +  "Geist",
      +  "Georgia",
      +  "Golos Text",
      +  "Heebo",
      +  "Hind",
      +  "IBM Plex Mono",
      +  "IBM Plex Sans",
      +  "Instrument Sans",
      +  "Instrument Serif",
      +  "Inter",
      +  "JetBrains Mono",
      +  "Josefin Sans",
      +  "Kanit",
      +  "Karla",
      +  "Lato",
      +  "League Spartan",
      +  "Lexend",
      +  "Libre Baskerville",
      +  "Libre Caslon Text",
      +  "Lora",
      +  "Manrope",
      +  "Merriweather",
      +  "Merriweather Sans",
      +  "Montserrat",
      +  "Mulish",
      +  "Newsreader",
      +  "Noto Sans",
      +  "Nunito",
      +  "Onest",
      +  "Open Sans",
      +  "Oswald",
      +  "Outfit",
      +  "PT Serif",
      +  "Playfair Display",
      +  "Plus Jakarta Sans",
      +  "Poppins",
      +  "Public Sans",
      +  "Quicksand",
      +  "Raleway",
      +  "Red Hat Display",
      +  "Roboto",
      +  "Rubik",
      +  "Sanchez",
      +  "Sora",
      +  "Source Sans 3",
      +  "Space Grotesk",
      +  "Syne",
      +  "Titillium Web",
      +  "Urbanist",
      +  "Work Sans",
      +  "system-ui"
      +]
  2. Added
  3. Removed
  4. Changed1 schema field changed
    • addedInput schema / properties / documents
      Added value: +{
      +  "additionalProperties": false,
      +  "description": "How this brand lays out PDFs. Any left out use the default.",
      +  "properties": {
      +    "accent": {
      +      "enum": [
      +        "band",
      +        "line",
      +        "none"
      +      ],
      +      "type": "string"
      +    },
      +    "body_size": {
      +      "enum": [
      +        "small",
      +        "regular",
      +        "large"
      +      ],
      +      "type": "string"
      +    },
      +    "density": {
      +      "enum": [
      +        "compact",
      +        "comfortable",
      +        "spacious"
      +      ],
      +      "type": "string"
      +    },
      +    "footer_text": {
      +      "description": "The footer line on every page. Empty string for no footer; left out it is the brand name.",
      +      "type": "string"
      +    },
      +    "heading_scale": {
      +      "enum": [
      +        "small",
      +        "regular",
      +        "large"
      +      ],
      +      "type": "string"
      +    },
      +    "orientation": {
      +      "enum": [
      +        "portrait",
      +        "landscape"
      +      ],
      +      "type": "string"
      +    },
      +    "page_numbers": {
      +      "enum": [
      +        "on",
      +        "off"
      +      ],
      +      "type": "string"
      +    },
      +    "page_size": {
      +      "enum": [
      +        "letter",
      +        "a4"
      +      ],
      +      "type": "string"
      +    }
      +  },
      +  "type": "object"
      +}
  5. Added

TDQS

A3.9/5.0
Behavior4/5

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

Adds behavior beyond the annotations: patch/merge semantics (omitted fields keep their value) and the fact that the updated kit is returned, which matters since there is no output schema. It does not explain why destructiveHint=true matters here — e.g. that supplying a nested object or overwriting a color is irreversible — but nothing in the description contradicts the annotation.

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?

Three short clauses, front-loaded with the operation and its merge semantics, then the risky precondition, then the return value. No filler and nothing repeated from the schema verbatim.

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?

For a 9-parameter mutation tool with nested objects and no output schema, it covers the essentials: partial-update semantics, the approval guardrail, and the return value. It could go further on overwrite/reversibility risk implied by destructiveHint=true, which is the main remaining gap.

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?

With 67% schema coverage, the description usefully reinforces the merge semantics for omitted fields and clarifies the one non-obvious parameter, review_state, whose enum contains only 'confirmed' and therefore needs the approval precondition to be usable. It says nothing about dark_mode or radius, but those are self-documented in the schema.

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

Purpose4/5

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

States a specific verb and resource ('change fields on a brand kit') and adds a precise scope trait: omitted fields retain their value, i.e. a partial update rather than a replacement. This is clearly separable from create_brand_kit, get_brand_kit, and list_brand_kits, though no sibling is named explicitly.

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?

Gives one concrete conditional rule: only set review_state 'confirmed' after the user has reviewed and approved an imported kit. That is real guidance, but it is narrow — no routing between this tool and set_default_brand_kit, create_brand_kit, or extract_brand_kit, and no stated preconditions for the other fields.

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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