README

CMS AI assistant UI for SilverStripe, powered by xddesigners/silverstripe-ai.

Adds an Assistant tab to CMS edit forms, letting editors generate and preview AI-written content for any configured fields — without overwriting the real content until they explicitly accept it.

Requirements

SilverStripe Framework ^6
SilverStripe Admin ^3
xddesigners/silverstripe-ai ^1.0
PHP ^8.1

Installation

composer require xddesigners/silverstripe-ai-assistant

Run a dev/build after installation:

sake dev/build flush=1

Configuration

The module requires the silverstripe-ai environment variables to be set. Copy .env.example as a starting point:

AI_PLATFORM_TYPE="openai"
AI_MODEL="gpt-4o-mini"
AI_API_KEY="sk-xxx"

Default setup

Out of the box, the assistant is applied to:

SiteTree — fields: Title, Content, MetaDescription
DNADesign\Elemental\Models\ElementContent — fields: Title, HTML

Applying the assistant to your own DataObjects

Add AIAssistantExtension to any DataObject and list the database fields you want included:

App\Models\MyDataObject:
  extensions:
    - XD\SilverstripeAIAssistant\Extensions\AIAssistantExtension
  ai_assisted_fields:
    - Title
    - Summary
    - MetaDescription

Run dev/build flush=1 after updating the config.

How it works

Once installed, each configured DataObject gets an Assistant tab in its CMS edit form, inserted after the Main tab.

The tab contains:

AI prompt — a textarea where the editor provides instructions (e.g. "Improve for SEO while keeping the same tone of voice").
Generate content button — sends the current field values as context to the /ai/generate endpoint and populates preview copies of the configured fields with the AI response.
AI-assisted fields — read-only previews of the AI-generated content. TinyMCE (HTML) fields are fully supported.
Accept AI Content button — copies the previewed AI content into the real CMS fields. A confirmation dialog is shown before any values are overwritten.

Saving the record is always a separate, explicit action — accepting the AI content only updates the live form fields.

Customising the default AI instructions

The default system instruction ("You are a helpful assistant and SEO expert.") can be changed in YAML:

XD\SilverstripeAI\Services\AIClient:
  default_instructions: 'You are an expert copywriter for a sustainable fashion brand.'

Editors can also override instructions per-generation using the AI prompt textarea in the CMS.

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