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② 後台搜尋「Presswell Alt Text Generator」→ 直接安裝（推薦）
原文外掛簡介
Presswell Alt Text Generator helps teams reduce accessibility backlog by generating descriptive alt text for new and existing images. Connect a provider, choose a model, and run generation workflows directly inside wp-admin.
Features
Supports OpenAI, Anthropic Claude, and Google Gemini multimodal models
Generates alt text for individual images in the Media Library and media modal
Processes missing-alt backlogs in batches with a dedicated bulk queue
Handles provider rate limits with automatic cooldown locks
Adds a Media Library column with quick generate/regenerate actions
Provides a customizable prompt seed for output consistency
Media Library Tools
Inline actions let you generate or regenerate alt text directly from each image row. When an image has no alt text, the column displays a “Generate Alt Text” link that triggers the AJAX workflow and replaces itself with the result.
Bulk Generator
The Bulk page counts images missing alt text, allows regeneration preferences, and runs batches while surfacing progress, failures, and rate-limit pauses.
Documentation
Filters
pwatg_available_services — Modify the available AI providers
pwatg_available_models — Modify the available models for each provider
pwatg_provider_registry — Map provider slugs to custom service classes
WP-CLI
If WP-CLI is available, you can run single-image generation, bulk generation, and missing-alt counts from the command line:
wp pwatg generate
wp pwatg bulk-generate
wp pwatg count-missing
wp pwatg network-bulk-generate
Optional CLI flags:
wp pwatg generate
wp pwatg bulk-generate --force
wp pwatg bulk-generate --limit=
wp pwatg bulk-generate --missing-only
wp pwatg network-bulk-generate --force
wp pwatg network-bulk-generate --limit=
wp pwatg network-bulk-generate --missing-only
wp pwatg network-bulk-generate --sites=
Privacy
This plugin sends image-derived payloads to the AI provider you choose when generating alt text (OpenAI, Anthropic, or Google Gemini). API keys are stored in WordPress options on your site and used only for outbound provider requests initiated by your server.
External Services
This plugin connects to external AI services only when you use alt text generation features or test provider connectivity. Only the provider selected in plugin settings is contacted for a given request. This plugin sends the follow data:
API key (in Authorization header)
Selected model name
Prompt text (including your prompt seed and filename context)
For alt-text generation: image MIME type and image binary content encoded as base64
For Test Connection: a short text prompt (“Reply with: OK”)
OpenAI API
Terms: https://openai.com/policies/terms-of-use
Privacy: https://openai.com/policies/privacy-policy
Anthropic API
Terms: https://www.anthropic.com/legal/commercial-terms
Privacy: https://www.anthropic.com/privacy
Google Gemini API
Terms: https://ai.google.dev/terms
Privacy: https://policies.google.com/privacy
