homaroma/LLM_MCP_GUIDE.md

# DBK Platform MCP Guide for LLMs

This guide explains how to use the DBK Platform MCP tools safely and consistently. The tools operate on the active tenant's data and configuration; do not infer another tenant's catalog, brand, or enabled integrations from an example.

> HomAroma is the reference tenant. See [`docs/PLATFORM_OVERVIEW.md`](docs/PLATFORM_OVERVIEW.md) for platform terminology.

## Core Rules

- Prefer the dedicated block tools over the generic `add_page_section` / `update_page_section` tools when available.
- Use `update_page_translations` when you need to set several languages for a page title in one call.
- Treat localized fields and plain strings differently.
- Read back the page after edits when you need confirmation.

## Finding a Page

- Use `get_dynamic_page_detail` with the page slug when you already know the slug.
- Use `list_dynamic_pages_metadata` when you need to search all pages quickly.
- The dynamic page detail response includes the page `id`, which is the `pageId` you use for section tools.

## Create Page Response Contract

Use `create_page_with_section` only when the slug does not exist. It atomically
creates a new page and its first section; it does not update an existing page.
If it returns `PAGE_SLUG_EXISTS`, use the returned `pageId` with
`add_page_section`.

To add another block to an existing page:

1. Call `get_dynamic_page_detail` with the slug.
2. Call `get_page_block_schema` for the desired block type.
3. Call `add_page_section` with the returned page `id`.
4. Call `reorder_page_sections` if the new block must move relative to existing blocks.
5. Read the page back with `get_dynamic_page_detail`.

`create_dynamic_page` now returns a structured response that is easy for LLMs to parse:

- `success`
- `operation`
- `pageId`
- `slug`
- `title`
- `isPublished`
- `diagnostic`
- `page`

Use `diagnostic` as the human-readable explanation, not as the only signal of success.

## Section Tool Mapping

- `update_hero_article`
- `update_rich_text`
- `update_scent_notes_breakdown`
- `update_quote_callout`
- `update_product_carousel`
- `update_accordion`
- `update_contact_info`
- `update_contact_form`

These tools return a normalized response with:

- `success`
- `tool`
- `sectionType`
- `sectionId`
- `updatedFields`
- `appliedPayload`
- `notes`
- `section`

## Payload Shape Cheat Sheet

### Localized string

Use this when a field can be translated:

```json
{ "th": "ข้อความภาษาไทย", "en": "English text" }
```

### Plain string

Use one string only for URLs, slugs, IDs, and booleans/numbers as appropriate.

## Block-Specific Rules

### `HERO_ARTICLE`

- Localized: `title`, `subtitle`, `author`, `category`
- Plain string: `publishDate`, `date`, `imageUrl`, `backgroundImageUrl`, `overlayColor`
- The image is passed as a URL string in `imageUrl`

### `RICH_TEXT`

- `title` is optional and localized
- `content` is required and localized
- HTML is allowed in `content`

### `ARTICLE_MEDIA`

- `body` is required, localized plain text; do not send HTML
- `heading`, `imageAlt`, and `imageCaption` are localized
- `imageUrl` is a plain URL or website-relative media path
- `imageAlt` is required whenever `imageUrl` is present
- `imagePosition` accepts `left`, `right`, or `top`
- `width` accepts `narrow`, `standard`, or `wide`
- `background` accepts `default` or `muted`

### Article composition blocks

- `ARTICLE_HEADER`: article title, subtitle, category, author, date, and optional cover image
- `ARTICLE_GALLERY`: 2–8 images with required localized alt text; layouts are `grid` or `featured`
- `ARTICLE_FACTS`: 1–8 concise facts or key takeaways
- `ARTICLE_VIDEO`: HTTPS YouTube, Vimeo, or direct video URL; embed HTML is not accepted
- `ARTICLE_REFERENCES`: 1–20 references with optional verified HTTPS URLs and notes
- `ARTICLE_TABLE`: responsive technical comparison with 2–6 columns
- `ARTICLE_DOWNLOAD`: 1–10 verified HTTPS documents
- `ARTICLE_CTA`: one primary action and an optional secondary action
- Reuse `QUOTE_CALLOUT`, `ACCORDION`, and `PRODUCT_CAROUSEL` instead of creating duplicate article-only variants

### `SCENT_NOTES_BREAKDOWN`

- `title` and `description` are localized
- Each note item may be a plain string or a localized string object
- `heartNotes` and `middleNotes` are mirrored by the backend

### `QUOTE_CALLOUT`

- `quote` is required and localized
- `author` and `role` are optional localized fields

### `PRODUCT_CAROUSEL`

- `title` and `description` are localized
- `collectionId`, `limit`, `showPrice`, `showAddToCart`, and `products` are plain values
- If `products` is omitted, the backend can auto-populate products on read-back

### `ACCORDION`

- `title` is optional and localized
- `categories` is required
- Each category needs:
  - localized `name`
  - optional `icon`
  - at least one question
- Each question needs localized `q` and `a`

### `CONTACT_INFO`

- `title` is optional and localized
- `address` and `hours` are localized
- `email` and `line` are plain strings

### `CONTACT_FORM`

- `title` and `subtitle` are localized
- There are no extra fields

## Recommended Flow

1. Determine whether the page already exists.
2. For a new page, use `create_page_with_section` for the page and first block.
3. For an existing page, get its id and use `add_page_section`.
4. Create or update the page title translations.
5. Update existing sections using the dedicated block tool when possible.
6. Read back the page with `get_dynamic_page_detail`.
7. If a section has auto-populated fields, trust the read-back result over the raw update payload.

## Translating Page Builder Blocks

Translate one language and one block at a time. This keeps the context compact and prevents a full payload replacement from overwriting existing languages.

1. Call `get_page_translation_status` with `pageId` and the target `lang`.
2. Pick one incomplete `sectionId`.
3. Call `get_page_section_translation` with that `sectionId` and target `lang`. The default fallback supplies source text for untranslated fields and lists those fields in `fallbackPaths`.
4. Translate the fields listed in `fallbackPaths`; preserve the payload's object and array shape.
5. Call `update_section_translation` with `translations` and the `updatedAt` value as `expectedUpdatedAt`.
6. Read the block again with `get_page_section_translation` and confirm `fallbackPaths` is empty.

`update_section_translation` changes only the requested language in registered localized fields. It preserves other languages, URLs, IDs, layout configuration, and other non-translatable values. A `SECTION_VERSION_CONFLICT` response means the block changed after it was read; fetch it again before retrying.

Use `get_page_section` with `lang=all` only when every stored language map is genuinely needed. A specific language returns resolved strings and uses fallback by default.

## Editing Footer Menus

`footer-explore` and `footer-support` are flat menus shared by Admin, Backend, MCP, and Website. They are not Page Builder sections and do not use the Mega Menu tree tools.

1. Call `get_footer_menu` with `menuName` and the target `lang`.
2. Keep the returned `version`.
3. Preview one item-level mutation with `dryRun=true` and `expectedVersion`.
4. Apply only after the preview is correct.
5. Read the menu again and verify the result.

Use `update_footer_menu_item_translation` for one language at a time. Use `reorder_footer_menu_items` only with the complete list of current item IDs. If the backend returns `MENU_VERSION_CONFLICT`, discard the old version and read the menu again.

An allowed Footer menu may not exist before its first item is saved. In that case, `get_footer_menu` returns `exists=false` and `version=null`. Run `add_footer_menu_item` with `dryRun=true`; a `willCreateMenu=true` preview confirms that the actual add will create the active menu and first item atomically.

Do not use legacy `update_footer_content` for menu arrays. It remains available only for the Footer brand description and social links. Website Collections come from Categories, not a Footer menu.

## What to Expect

- `PRODUCT_CAROUSEL` may return products even when you did not send them.
- `SCENT_NOTES_BREAKDOWN` may show mirrored note groups in the response.
- `create_dynamic_page` should now return a clear success/error contract.

## Safe Usage Tips

- Do not guess the field shape from the UI alone.
- If a field is a URL, send a URL string.
- If a field is translated, send a localized object.
- If you are unsure, inspect an existing page with `get_dynamic_page_detail` first.