chore: release v1.111.0

Replaces the stateless ask-once backend rule with a 4-step resolution
(current-request override > saved preference > auto-select > ask) and
adds a single `preferred_image_backend` field (auto | ask | <backend-id>)
to every image-consuming skill's EXTEND.md schema. Runtime-native tools
(Codex `imagegen`, Hermes `image_generate`, ...) win by default; absent
field equals `auto` so existing user EXTEND.md files stay valid with no
schema version bump.

Each image-consuming skill also gains a top-level `## Changing
Preferences` section as a first-class surface for pinning a backend and
editing common one-line preferences.

Applies across:
  - baoyu-infographic (reverts in-progress two-field image_backend_mode design)
  - baoyu-comic
  - baoyu-cover-image
  - baoyu-image-cards
  - baoyu-article-illustrator
  - baoyu-slide-deck
  - baoyu-xhs-images
  - docs/image-generation-tools.md (canonical author-side doc)

.claude-plugin/marketplace.json

@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "Skills shared by Baoyu for improving daily work efficiency",
-    "version": "1.109.0"
+    "version": "1.111.0"
   },
   "plugins": [
     {

CHANGELOG.md

@@ -2,6 +2,17 @@
 
 English | [中文](./CHANGELOG.zh.md)
 
+## 1.111.0 - 2026-04-21
+
+### Refactor
+- Unify image-backend resolution across all image-consuming skills (`baoyu-infographic`, `baoyu-comic`, `baoyu-cover-image`, `baoyu-image-cards`, `baoyu-article-illustrator`, `baoyu-slide-deck`, `baoyu-xhs-images`): add a single `preferred_image_backend` preference field (`auto | ask | <backend-id>`) and replace the stateless ask-once rule with a 4-step resolution (current-request override → saved preference → auto-select → ask). Runtime-native tools (Codex `imagegen`, Hermes `image_generate`) are preferred by default; existing `EXTEND.md` files without the field are treated as `auto` with no schema bump.
+- Add a top-level `## Changing Preferences` section to each image-consuming skill as a first-class surface for pinning the backend and editing common one-line preferences.
+
+## 1.110.0 - 2026-04-21
+
+### Features
+- `baoyu-imagine`: add `gpt-image-2` support for OpenAI image generation and edits, make it the default OpenAI model, and document the official size/quality mapping, custom-size constraints, and Azure deployment guidance
+
 ## 1.109.0 - 2026-04-21
 
 ### Features

CHANGELOG.zh.md

@@ -2,6 +2,17 @@
 
 [English](./CHANGELOG.md) | 中文
 
+## 1.111.0 - 2026-04-21
+
+### 重构
+- 统一所有图片生成类技能（`baoyu-infographic`、`baoyu-comic`、`baoyu-cover-image`、`baoyu-image-cards`、`baoyu-article-illustrator`、`baoyu-slide-deck`、`baoyu-xhs-images`）的后端选择规则：新增单一 `preferred_image_backend` 偏好字段（`auto | ask | <backend-id>`），用 4 步解析规则（当前请求覆盖 → 已保存偏好 → 自动选择 → 询问用户）替换原有的无状态询问规则。默认优先使用运行时原生工具（如 Codex `imagegen`、Hermes `image_generate`）；未设置该字段的现有 `EXTEND.md` 文件视为 `auto`，无需升级 schema 版本。
+- 在每个图片技能中新增顶级 `## Changing Preferences` 章节,作为固定后端和修改常用偏好的一级入口。
+
+## 1.110.0 - 2026-04-21
+
+### 新功能
+- `baoyu-imagine`：新增 `gpt-image-2` 支持，用于 OpenAI 图像生成与编辑；将其设为默认 OpenAI 模型，并补齐官方尺寸/质量映射、自定义尺寸约束与 Azure 部署说明
+
 ## 1.109.0 - 2026-04-21
 
 ### 新功能

README.md

@@ -714,7 +714,7 @@ AI-powered generation backends.
 
 #### baoyu-imagine
 
-AI SDK-based image generation using OpenAI, Azure OpenAI, Google, OpenRouter, DashScope (Aliyun Tongyi Wanxiang), MiniMax, Jimeng (即梦), Seedream (豆包), and Replicate APIs. Supports text-to-image, reference images, aspect ratios, custom sizes, batch generation, and quality presets.
+AI SDK-based image generation using OpenAI GPT Image 2, Azure OpenAI, Google, OpenRouter, DashScope (Aliyun Tongyi Wanxiang), MiniMax, Jimeng (即梦), Seedream (豆包), and Replicate APIs. Supports text-to-image, reference images, aspect ratios, custom sizes, batch generation, and quality presets.
 
 ```bash
 # Basic generation (auto-detect provider)
@@ -727,10 +727,10 @@ AI SDK-based image generation using OpenAI, Azure OpenAI, Google, OpenRouter, Da
 /baoyu-imagine --prompt "A banner" --image banner.png --quality 2k
 
 # Specific provider
-/baoyu-imagine --prompt "A cat" --image cat.png --provider openai
+/baoyu-imagine --prompt "A cat" --image cat.png --provider openai --model gpt-image-2
 
 # Azure OpenAI (model = deployment name)
-/baoyu-imagine --prompt "A cat" --image cat.png --provider azure --model gpt-image-1.5
+/baoyu-imagine --prompt "A cat" --image cat.png --provider azure --model gpt-image-2
 
 # OpenRouter
 /baoyu-imagine --prompt "A cat" --image cat.png --provider openrouter
@@ -786,7 +786,7 @@ AI SDK-based image generation using OpenAI, Azure OpenAI, Google, OpenRouter, Da
 | `--provider` | `google`, `openai`, `azure`, `openrouter`, `dashscope`, `zai`, `minimax`, `jimeng`, `seedream`, or `replicate` |
 | `--model`, `-m` | Model ID or deployment name. Azure uses deployment name; OpenRouter uses full model IDs; Z.AI uses `glm-image`; MiniMax uses `image-01` / `image-01-live` |
 | `--ar` | Aspect ratio (e.g., `16:9`, `1:1`, `4:3`) |
-| `--size` | Size (e.g., `1024x1024`) |
+| `--size` | Size (e.g., `1024x1024`; `gpt-image-2` accepts valid custom sizes up to 3840px max edge) |
 | `--quality` | `normal` or `2k` (default: `2k`) |
 | `--imageSize` | `1K`, `2K`, or `4K` for Google/OpenRouter |
 | `--imageApiDialect` | `openai-native` or `ratio-metadata` for OpenAI-compatible gateways |
@@ -810,9 +810,9 @@ AI SDK-based image generation using OpenAI, Azure OpenAI, Google, OpenRouter, Da
 | `JIMENG_ACCESS_KEY_ID` | Jimeng Volcengine access key | - |
 | `JIMENG_SECRET_ACCESS_KEY` | Jimeng Volcengine secret key | - |
 | `ARK_API_KEY` | Seedream Volcengine ARK API key | - |
-| `OPENAI_IMAGE_MODEL` | OpenAI model | `gpt-image-1.5` |
+| `OPENAI_IMAGE_MODEL` | OpenAI model | `gpt-image-2` |
 | `AZURE_OPENAI_DEPLOYMENT` | Azure default deployment name | - |
-| `AZURE_OPENAI_IMAGE_MODEL` | Backward-compatible Azure deployment/model alias | `gpt-image-1.5` |
+| `AZURE_OPENAI_IMAGE_MODEL` | Backward-compatible Azure deployment/model alias | `gpt-image-2` |
 | `OPENROUTER_IMAGE_MODEL` | OpenRouter model | `google/gemini-3.1-flash-image-preview` |
 | `GOOGLE_IMAGE_MODEL` | Google model | `gemini-3-pro-image-preview` |
 | `DASHSCOPE_IMAGE_MODEL` | DashScope model | `qwen-image-2.0-pro` |
@@ -1132,14 +1132,14 @@ mkdir -p ~/.baoyu-skills
 cat > ~/.baoyu-skills/.env << 'EOF'
 # OpenAI
 OPENAI_API_KEY=sk-xxx
-OPENAI_IMAGE_MODEL=gpt-image-1.5
+OPENAI_IMAGE_MODEL=gpt-image-2
 # OPENAI_BASE_URL=https://api.openai.com/v1
 # OPENAI_IMAGE_USE_CHAT=false
 
 # Azure OpenAI
 AZURE_OPENAI_API_KEY=xxx
 AZURE_OPENAI_BASE_URL=https://your-resource.openai.azure.com
-AZURE_OPENAI_DEPLOYMENT=gpt-image-1.5
+AZURE_OPENAI_DEPLOYMENT=gpt-image-2
 # AZURE_API_VERSION=2025-04-01-preview
 
 # OpenRouter

README.zh.md

@@ -714,7 +714,7 @@ AI 驱动的生成后端。
 
 #### baoyu-imagine
 
-基于 AI SDK 的图像生成，支持 OpenAI、Azure OpenAI、Google、OpenRouter、DashScope（阿里通义万相）、MiniMax、即梦（Jimeng）、豆包（Seedream）和 Replicate API。支持文生图、参考图、宽高比、自定义尺寸、批量生成和质量预设。
+基于 AI SDK 的图像生成，支持 OpenAI GPT Image 2、Azure OpenAI、Google、OpenRouter、DashScope（阿里通义万相）、MiniMax、即梦（Jimeng）、豆包（Seedream）和 Replicate API。支持文生图、参考图、宽高比、自定义尺寸、批量生成和质量预设。
 
 ```bash
 # 基础生成（自动检测服务商）
@@ -727,10 +727,10 @@ AI 驱动的生成后端。
 /baoyu-imagine --prompt "横幅图" --image banner.png --quality 2k
 
 # 指定服务商
-/baoyu-imagine --prompt "一只猫" --image cat.png --provider openai
+/baoyu-imagine --prompt "一只猫" --image cat.png --provider openai --model gpt-image-2
 
 # Azure OpenAI（model 为部署名称）
-/baoyu-imagine --prompt "一只猫" --image cat.png --provider azure --model gpt-image-1.5
+/baoyu-imagine --prompt "一只猫" --image cat.png --provider azure --model gpt-image-2
 
 # OpenRouter
 /baoyu-imagine --prompt "一只猫" --image cat.png --provider openrouter
@@ -786,7 +786,7 @@ AI 驱动的生成后端。
 | `--provider` | `google`、`openai`、`azure`、`openrouter`、`dashscope`、`zai`、`minimax`、`jimeng`、`seedream` 或 `replicate` |
 | `--model`, `-m` | 模型 ID 或部署名。Azure 使用部署名；OpenRouter 使用完整模型 ID；Z.AI 使用 `glm-image`；MiniMax 使用 `image-01` / `image-01-live` |
 | `--ar` | 宽高比（如 `16:9`、`1:1`、`4:3`） |
-| `--size` | 尺寸（如 `1024x1024`） |
+| `--size` | 尺寸（如 `1024x1024`；`gpt-image-2` 支持最长边不超过 3840px 的有效自定义尺寸） |
 | `--quality` | `normal` 或 `2k`（默认：`2k`） |
 | `--imageSize` | Google/OpenRouter 使用的 `1K`、`2K`、`4K` |
 | `--imageApiDialect` | OpenAI 兼容网关的图像 API 方言（`openai-native` 或 `ratio-metadata`） |
@@ -810,9 +810,9 @@ AI 驱动的生成后端。
 | `JIMENG_ACCESS_KEY_ID` | 即梦火山引擎 Access Key | - |
 | `JIMENG_SECRET_ACCESS_KEY` | 即梦火山引擎 Secret Key | - |
 | `ARK_API_KEY` | 豆包火山引擎 ARK API 密钥 | - |
-| `OPENAI_IMAGE_MODEL` | OpenAI 模型 | `gpt-image-1.5` |
+| `OPENAI_IMAGE_MODEL` | OpenAI 模型 | `gpt-image-2` |
 | `AZURE_OPENAI_DEPLOYMENT` | Azure 默认部署名 | - |
-| `AZURE_OPENAI_IMAGE_MODEL` | 兼容旧配置的 Azure 部署/模型别名 | `gpt-image-1.5` |
+| `AZURE_OPENAI_IMAGE_MODEL` | 兼容旧配置的 Azure 部署/模型别名 | `gpt-image-2` |
 | `OPENROUTER_IMAGE_MODEL` | OpenRouter 模型 | `google/gemini-3.1-flash-image-preview` |
 | `GOOGLE_IMAGE_MODEL` | Google 模型 | `gemini-3-pro-image-preview` |
 | `DASHSCOPE_IMAGE_MODEL` | DashScope 模型 | `qwen-image-2.0-pro` |
@@ -1132,14 +1132,14 @@ mkdir -p ~/.baoyu-skills
 cat > ~/.baoyu-skills/.env << 'EOF'
 # OpenAI
 OPENAI_API_KEY=sk-xxx
-OPENAI_IMAGE_MODEL=gpt-image-1.5
+OPENAI_IMAGE_MODEL=gpt-image-2
 # OPENAI_BASE_URL=https://api.openai.com/v1
 # OPENAI_IMAGE_USE_CHAT=false
 
 # Azure OpenAI
 AZURE_OPENAI_API_KEY=xxx
 AZURE_OPENAI_BASE_URL=https://your-resource.openai.azure.com
-AZURE_OPENAI_DEPLOYMENT=gpt-image-1.5
+AZURE_OPENAI_DEPLOYMENT=gpt-image-2
 # AZURE_API_VERSION=2025-04-01-preview
 
 # OpenRouter

docs/image-generation-tools.md

@@ -4,13 +4,29 @@ Skills in this repo are loaded by multiple agent runtimes (Claude Code, Codex, H
 
 ## The Rule
 
-When a skill needs to render an image:
+When a skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if the skill's `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
 
-No explicit priority between runtime-native tools and repo skills — treat them equivalently and let the user decide when there's a choice. No persisted preference mechanism; the question is cheap, and the rule is stateless.
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends.
+
+## The Preference Field
+
+Each image-consuming skill's `EXTEND.md` carries a single `preferred_image_backend` field:
+
+| Value | Meaning |
+|---|---|
+| `auto` (default) | Apply the auto-select rule — runtime-native preferred, fall back to only installed backend, ask if multiple non-native. |
+| `ask` | Always confirm the backend on every run, even when a runtime-native tool exists. |
+| `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) | Pin this backend when available; fall back to `auto` if it isn't. |
+
+The field is **absent-equals-auto**: older `EXTEND.md` files without this field behave exactly as if `preferred_image_backend: auto` were set. No schema version bump is needed to introduce it.
 
 ## Prompt File Requirement (hard)
 
@@ -20,6 +36,8 @@ Regardless of which backend is chosen, every skill that renders images MUST writ
 
 Each `SKILL.md` that renders images includes **exactly one** `## Image Generation Tools` section (near the top, after `## User Input Tools` and before the main workflow) that **inlines** this rule. Skills are self-contained and cannot link to `docs/` — each skill folder must ship the rule inside its own `SKILL.md`. See [CLAUDE.md → Skill Self-Containment](../CLAUDE.md).
 
+Each skill's `references/config/preferences-schema.md` (and its `EXTEND.md` template in `first-time-setup.md`) lists `preferred_image_backend` alongside other preference fields. First-time setup does NOT ask the user about the backend — `auto` is set silently. Users who want to pin a specific backend edit `EXTEND.md` later, and each skill's `## Changing Preferences` section documents the common one-line edits.
+
 Concrete tool names (`imagegen`, `image_generate`, `baoyu-imagine`) in this document and in SKILL.md are **examples** — agents in other runtimes apply the rule above and substitute the local equivalent. Skill-specific parameters for these backends are illustrative; runtimes without those knobs can omit them.
 
 ## Backend Skills Are Exempt

skills/baoyu-article-illustrator/SKILL.md

@@ -23,11 +23,17 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-{type}-[slug].md`) BEFORE invoking any backend. The backend receives the prompt file (or its content); the file is the reproducibility record and lets you switch backends without regenerating prompts.
 
@@ -207,3 +213,17 @@ When input is **pasted content** (no file path), always uses `illustrations/{top
 | [references/style-presets.md](references/style-presets.md) | Preset shortcuts (type + style + palette) |
 | [references/prompt-construction.md](references/prompt-construction.md) | Prompt templates |
 | [references/config/first-time-setup.md](references/config/first-time-setup.md) | First-time setup |
+
+## Changing Preferences
+
+EXTEND.md lives at the first matching path listed in Step 1.5. Three ways to change it:
+
+- **Edit directly** — open EXTEND.md and change fields. Full schema: `references/config/preferences-schema.md`.
+- **Reconfigure interactively** — delete EXTEND.md (or ask "reconfigure baoyu-article-illustrator preferences" / "重新配置"). The next run re-triggers first-time setup.
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `preferred_type: infographic`, `preferred_style: notion`, `preferred_palette: macaron`, `language: zh`.
+  - `default_output_dir: imgs-subdir` — where to write generated images relative to the article.

skills/baoyu-article-illustrator/references/config/first-time-setup.md

@@ -126,13 +126,13 @@ preferred_style:
   description: ""
 default_output_dir: imgs-subdir  # same-dir | imgs-subdir | illustrations-subdir | independent
 language: null
+preferred_image_backend: auto
 custom_styles: []
 ---
 ```
 
+`preferred_image_backend: auto` is the baked-in default — first-time setup does not ask about it. The `## Image Generation Tools` rule in SKILL.md then picks the runtime-native tool (Codex `imagegen`, Hermes `image_generate`, etc.) when available, and falls back to installed backends.
+
 ## Modifying Preferences Later
 
-Users can edit EXTEND.md directly or run setup again:
+See the `## Changing Preferences` section in `SKILL.md` for the canonical list of common edits (pin backend, change defaults, retrigger setup). Full schema: `preferences-schema.md`.
-- Delete EXTEND.md to trigger setup
-- Edit YAML frontmatter for quick changes
-- Full schema: `config/preferences-schema.md`

skills/baoyu-article-illustrator/references/config/preferences-schema.md

@@ -26,6 +26,8 @@ language: null            # zh|en|ja|ko|auto
 
 default_output_dir: null  # same-dir|illustrations-subdir|independent
 
+preferred_image_backend: auto  # auto|ask|<backend-id>
+
 custom_styles:
   - name: my-style
     description: "Style description"
@@ -52,6 +54,7 @@ custom_styles:
 | `preferred_palette` | string | null | Palette override (macaron, warm, neon, or null) |
 | `language` | string | null | Output language (null = auto-detect) |
 | `default_output_dir` | enum | null | Output directory preference (null = ask each time) |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. Resolution logic is documented in `SKILL.md`'s `## Image Generation Tools` section. |
 | `custom_styles` | array | [] | User-defined styles |
 
 ## Position Options
@@ -113,6 +116,8 @@ preferred_style:
 
 language: zh
 
+preferred_image_backend: codex-imagegen
+
 custom_styles:
   - name: corporate
     description: "Professional B2B style"

skills/baoyu-comic/SKILL.md

@@ -27,11 +27,17 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-{type}-[slug].md`) BEFORE invoking any backend. The backend receives the prompt file (or its content); the file is the reproducibility record and lets you switch backends without regenerating prompts.
 
@@ -295,3 +301,16 @@ If EXTEND.md is not found, first-time setup is **blocking** — complete it befo
 - **Step 7.1 character sheet** - recommended for multi-page comics, optional for simple presets
 - **Step 7.2 character reference** - use `--ref` if sheet exists; compress/convert on failure; fall back to prompt-only
 - Watermark/language configured once in EXTEND.md
+
+## Changing Preferences
+
+EXTEND.md lives at `.baoyu-skills/baoyu-comic/EXTEND.md` (project) or `~/.baoyu-skills/baoyu-comic/EXTEND.md` (user). Three ways to change it:
+
+- **Edit directly** — open EXTEND.md and change fields. Full schema: `references/config/preferences-schema.md`.
+- **Reconfigure interactively** — delete EXTEND.md (or ask "reconfigure baoyu-comic preferences" / "重新配置"). The next run re-triggers first-time setup.
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `watermark.enabled: true`, `preferred_art`, `preferred_tone`, `preferred_layout`, `language` — shift the auto-selection defaults and cosmetic choices.

skills/baoyu-comic/references/config/first-time-setup.md

@@ -142,13 +142,13 @@ preferred_tone: [selected tone or null]
 preferred_layout: null
 preferred_aspect: null
 language: [selected or null]
+preferred_image_backend: auto
 character_presets: []
 ---
 ```
 
+`preferred_image_backend: auto` is the baked-in default — first-time setup does not ask about it. The `## Image Generation Tools` rule in SKILL.md then picks the runtime-native tool (Codex `imagegen`, Hermes `image_generate`, etc.) when available, and falls back to installed backends.
+
 ## Modifying Preferences Later
 
-Users can edit EXTEND.md directly or run setup again:
+See the `## Changing Preferences` section in `SKILL.md` for the canonical list of common edits (pin backend, change defaults, retrigger setup). Full schema: `config/preferences-schema.md`.
-- Delete EXTEND.md to trigger setup
-- Edit YAML frontmatter for quick changes
-- Full schema: `config/preferences-schema.md`

skills/baoyu-comic/references/config/preferences-schema.md

@@ -23,6 +23,8 @@ preferred_aspect: null    # 3:4|4:3|16:9
 
 language: null            # zh|en|ja|ko|auto
 
+preferred_image_backend: auto  # auto|ask|<backend-id>
+
 character_presets:
   - name: my-characters
     roles:
@@ -46,6 +48,7 @@ character_presets:
 | `preferred_layout` | string | null | Layout preference or null |
 | `preferred_aspect` | string | null | Aspect ratio (3:4, 4:3, 16:9) |
 | `language` | string | null | Output language (null = auto-detect) |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. Resolution logic is documented in `SKILL.md`'s `## Image Generation Tools` section. |
 | `character_presets` | array | [] | Preset character roles for styles like ohmsha |
 
 ## Art Style Options
@@ -122,6 +125,8 @@ preferred_aspect: "3:4"
 
 language: zh
 
+preferred_image_backend: codex-imagegen
+
 character_presets:
   - name: tech-tutorial
     roles:

skills/baoyu-cover-image/SKILL.md

@@ -23,11 +23,17 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-{type}-[slug].md`) BEFORE invoking any backend. The backend receives the prompt file (or its content); the file is the reproducibility record and lets you switch backends without regenerating prompts.
 
@@ -228,13 +234,18 @@ Files:
 - **Characters**: Simplified silhouettes; NO realistic humans
 - **Title**: Use exact title from user/source; never invent
 
-## Extension Support
+## Changing Preferences
 
-Custom configurations via EXTEND.md. See **Step 0** for paths.
+EXTEND.md lives at the path noted in **Step 0**. Three ways to change it:
 
-Supports: Watermark | Preferred dimensions | Default aspect/output | Quick mode | Custom palettes | Language
+- **Edit directly** — open EXTEND.md and change fields. Full schema: [references/config/preferences-schema.md](references/config/preferences-schema.md).
-
+- **Reconfigure interactively** — delete EXTEND.md (or ask "reconfigure baoyu-cover-image preferences" / "重新配置"). The next run re-triggers first-time setup.
-Schema: [references/config/preferences-schema.md](references/config/preferences-schema.md)
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `watermark.enabled: true`, `preferred_type`, `preferred_palette`, `preferred_rendering`, `default_aspect`, `quick_mode: true`, `language` — shift the auto-selection defaults and confirmation flow.
 
 ## References
 

skills/baoyu-cover-image/references/config/first-time-setup.md

@@ -188,15 +188,15 @@ default_aspect: [16:9/2.35:1/1:1/3:4]
 default_output_dir: [independent/same-dir/imgs-subdir]
 quick_mode: [true/false]
 language: null
+preferred_image_backend: auto
 custom_palettes: []
 ---
 ```
 
+`preferred_image_backend: auto` is the baked-in default — first-time setup does not ask about it. The `## Image Generation Tools` rule in SKILL.md then picks the runtime-native tool (Codex `imagegen`, Hermes `image_generate`, etc.) when available, and falls back to installed backends.
+
 ## Modifying Preferences Later
 
-Users can edit EXTEND.md directly or run setup again:
+See the `## Changing Preferences` section in `SKILL.md` for the canonical list of common edits (pin backend, change defaults, retrigger setup). Full schema: `preferences-schema.md`.
-- Delete EXTEND.md to trigger setup
-- Edit YAML frontmatter for quick changes
-- Full schema: `preferences-schema.md`
 
-**EXTEND.md Supports**: Watermark | Preferred type | Preferred palette | Preferred rendering | Preferred text | Preferred mood | Default aspect ratio | Default output directory | Quick mode | Custom palette definitions | Language preference
+**EXTEND.md Supports**: Watermark | Preferred type | Preferred palette | Preferred rendering | Preferred text | Preferred mood | Default aspect ratio | Default output directory | Quick mode | Image backend preference | Custom palette definitions | Language preference

skills/baoyu-cover-image/references/config/preferences-schema.md

@@ -32,6 +32,8 @@ quick_mode: false         # Skip confirmation when true
 
 language: null            # zh|en|ja|ko|auto (null = auto-detect)
 
+preferred_image_backend: auto  # auto|ask|<backend-id>
+
 custom_palettes:
   - name: my-palette
     description: "Palette description"
@@ -60,6 +62,7 @@ custom_palettes:
 | `default_aspect` | string | "2.35:1" | Default aspect ratio |
 | `quick_mode` | bool | false | Skip confirmation step |
 | `language` | string | null | Output language (null = auto-detect) |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. Resolution logic is documented in `SKILL.md`'s `## Image Generation Tools` section. |
 | `custom_palettes` | array | [] | User-defined palettes |
 
 ## Type Options
@@ -187,6 +190,8 @@ quick_mode: true
 
 language: en
 
+preferred_image_backend: codex-imagegen
+
 custom_palettes:
   - name: corporate-tech
     description: "Professional B2B tech palette"

skills/baoyu-image-cards/SKILL.md

@@ -23,14 +23,22 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-{type}-[slug].md`) BEFORE invoking any backend. The file is the reproducibility record and lets you switch backends without regenerating prompts.
 
+Concrete tool names (`imagegen`, `image_generate`, `baoyu-imagine`) above are examples — substitute the local equivalents under the same rule.
+
 ## Language
 
 Respond in the user's language across questions, progress, errors, and completion summary. Keep technical tokens (style names, file paths, code) in English.
@@ -417,4 +425,16 @@ Always update the prompt file before regenerating — it's the source of truth a
 - For sensitive public figures, use stylized cartoon alternatives.
 - Smart Confirm (Step 2) is required; Detailed mode adds a second confirmation (2a + 2c).
 
-Custom configurations via EXTEND.md. See Step 0 for paths and schema.
+## Changing Preferences
+
+EXTEND.md lives at the first matching path listed in Step 0. Three ways to change it:
+
+- **Edit directly** — open EXTEND.md and change fields. Full schema: `references/config/preferences-schema.md`.
+- **Reconfigure interactively** — delete EXTEND.md (or ask "reconfigure baoyu-image-cards preferences" / "重新配置"). The next run re-triggers first-time setup.
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `preferred_style: notion`, `preferred_layout: dense`, `preferred_palette: macaron`, `language: zh`.
+  - `watermark.enabled: true` + `watermark.content: "@handle"` — add a watermark.

skills/baoyu-image-cards/references/config/first-time-setup.md

@@ -110,13 +110,13 @@ preferred_style:
   description: ""
 preferred_layout: null
 language: null
+preferred_image_backend: auto
 custom_styles: []
 ---
 ```
 
+`preferred_image_backend: auto` is the baked-in default — first-time setup does not ask about it. The `## Image Generation Tools` rule in SKILL.md then picks the runtime-native tool (Codex `imagegen`, Hermes `image_generate`, etc.) when available, and falls back to installed backends.
+
 ## Modifying Preferences Later
 
-Users can edit EXTEND.md directly or run setup again:
+See the `## Changing Preferences` section in `SKILL.md` for the canonical list of common edits (pin backend, change defaults, retrigger setup). Full schema: `preferences-schema.md`.
-- Delete EXTEND.md to trigger setup
-- Edit YAML frontmatter for quick changes
-- Full schema: `config/preferences-schema.md`

skills/baoyu-image-cards/references/config/preferences-schema.md

@@ -24,6 +24,8 @@ preferred_layout: null    # sparse|balanced|dense|list|comparison|flow
 
 language: null            # zh|en|ja|ko|auto
 
+preferred_image_backend: auto  # auto|ask|<backend-id>
+
 custom_styles:
   - name: my-style
     description: "Style description"
@@ -49,6 +51,7 @@ custom_styles:
 | `preferred_style.description` | string | "" | Custom notes/override |
 | `preferred_layout` | string | null | Layout preference or null |
 | `language` | string | null | Output language (null = auto-detect) |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. Resolution logic is documented in `SKILL.md`'s `## Image Generation Tools` section. |
 | `custom_styles` | array | [] | User-defined styles |
 
 ## Position Options
@@ -104,6 +107,8 @@ preferred_layout: dense
 
 language: zh
 
+preferred_image_backend: codex-imagegen
+
 custom_styles:
   - name: corporate
     description: "Professional B2B style"

skills/baoyu-imagine/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: baoyu-imagine
-description: AI image generation with OpenAI, Azure OpenAI, Google, OpenRouter, DashScope, Z.AI GLM-Image, MiniMax, Jimeng, Seedream and Replicate APIs. Supports text-to-image, reference images, aspect ratios, and batch generation from saved prompt files. Sequential by default; use batch parallel generation when the user already has multiple prompts or wants stable multi-image throughput. Use when user asks to generate, create, or draw images.
+description: AI image generation with OpenAI GPT Image 2, Azure OpenAI, Google, OpenRouter, DashScope, Z.AI GLM-Image, MiniMax, Jimeng, Seedream and Replicate APIs. Supports text-to-image, reference images, aspect ratios, and batch generation from saved prompt files. Sequential by default; use batch parallel generation when the user already has multiple prompts or wants stable multi-image throughput. Use when user asks to generate, create, or draw images.
-version: 1.57.0
+version: 1.58.0
 metadata:
   openclaw:
     homepage: https://github.com/JimLiu/baoyu-skills#baoyu-imagine
@@ -13,7 +13,7 @@ metadata:
 
 # Image Generation (AI SDK)
 
-Official API-based image generation. Supports OpenAI, Azure OpenAI, Google, OpenRouter, DashScope (阿里通义万象), Z.AI GLM-Image, MiniMax, Jimeng (即梦), Seedream (豆包) and Replicate.
+Official API-based image generation. Supports OpenAI GPT Image 2, Azure OpenAI, Google, OpenRouter, DashScope (阿里通义万象), Z.AI GLM-Image, MiniMax, Jimeng (即梦), Seedream (豆包) and Replicate.
 
 ## User Input Tools
 
@@ -68,6 +68,9 @@ ${BUN_X} {baseDir}/scripts/main.ts --prompt "Make blue" --image out.png --ref so
 # Specific provider
 ${BUN_X} {baseDir}/scripts/main.ts --prompt "A cat" --image out.png --provider dashscope --model qwen-image-2.0-pro
 
+# OpenAI GPT Image 2
+${BUN_X} {baseDir}/scripts/main.ts --prompt "A cat" --image out.png --provider openai --model gpt-image-2
+
 # Batch mode
 ${BUN_X} {baseDir}/scripts/main.ts --batchfile batch.json --jobs 4
 ```
@@ -84,7 +87,7 @@ ${BUN_X} {baseDir}/scripts/main.ts --batchfile batch.json --jobs 4
 | `--provider google\|openai\|azure\|openrouter\|dashscope\|zai\|minimax\|jimeng\|seedream\|replicate` | Force provider (default: auto-detect) |
 | `--model <id>`, `-m` | Model ID — see provider references for defaults and allowed values |
 | `--ar <ratio>` | Aspect ratio (`16:9`, `1:1`, `4:3`, …) |
-| `--size <WxH>` | Explicit size (e.g., `1024x1024`) |
+| `--size <WxH>` | Explicit size (e.g., `1024x1024`; for `gpt-image-2`, width/height must be multiples of 16, max edge 3840px, ratio no wider than 3:1) |
 | `--quality normal\|2k` | Quality preset (default: `2k`) |
 | `--imageSize 1K\|2K\|4K` | Image size for Google/OpenRouter (default: from quality) |
 | `--imageApiDialect openai-native\|ratio-metadata` | OpenAI-compatible endpoint dialect — use `ratio-metadata` for gateways that expect aspect-ratio `size` plus `metadata.resolution` |
@@ -128,7 +131,9 @@ Priority (highest → lowest) applies to every provider:
 3. Env var `<PROVIDER>_IMAGE_MODEL`
 4. Built-in default
 
-For Azure, `--model` / `default_model.azure` is the Azure deployment name. `AZURE_OPENAI_DEPLOYMENT` is the preferred env var; `AZURE_OPENAI_IMAGE_MODEL` is kept as a backward-compatible alias.
+For OpenAI, the built-in default is `gpt-image-2`. `gpt-image-1.5`, `gpt-image-1`, and GPT Image snapshots remain selectable with `--model` or `OPENAI_IMAGE_MODEL`.
+
+For Azure, `--model` / `default_model.azure` is the Azure deployment name. `AZURE_OPENAI_DEPLOYMENT` is the preferred env var; `AZURE_OPENAI_IMAGE_MODEL` is kept as a backward-compatible alias. If your Azure deployment is named after the underlying model, use `gpt-image-2`; otherwise use the exact custom deployment name.
 
 EXTEND.md overrides env vars: if EXTEND.md sets `default_model.google: "gemini-3-pro-image-preview"` and the env var sets `GOOGLE_IMAGE_MODEL=gemini-3.1-flash-image-preview`, EXTEND.md wins.
 
@@ -169,17 +174,19 @@ Each provider has its own quirks (model families, size rules, ref support, limit
 
 | Preset | Google imageSize | OpenAI size | OpenRouter size | Replicate resolution | Use case |
 |--------|------------------|-------------|-----------------|----------------------|----------|
-| `normal` | 1K | 1024px | 1K | 1K | Quick previews |
+| `normal` | 1K | 1024px target | 1K | 1K | Quick previews |
-| `2k` (default) | 2K | 2048px | 2K | 2K | Covers, illustrations, infographics |
+| `2k` (default) | 2K | 2048px target | 2K | 2K | Covers, illustrations, infographics |
 
 Google/OpenRouter `imageSize` can be overridden with `--imageSize 1K|2K|4K`.
 
+For OpenAI native `gpt-image-2`, `normal` maps to `quality=medium` and a low-latency valid size near the requested aspect ratio; `2k` maps to `quality=high` and 2048px-class sizes such as `2048x2048`, `2048x1152`, or `1152x2048`. Use explicit `--size` for valid custom or 4K outputs, e.g. `3840x2160`.
+
 ## Aspect Ratios
 
 Supported: `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `2.35:1`.
 
 - Google multimodal: `imageConfig.aspectRatio`
-- OpenAI: closest supported size
+- OpenAI: `gpt-image-2` uses the closest valid custom size for the requested ratio; older GPT Image and DALL·E models use their closest supported fixed size
 - OpenRouter: `imageGenerationOptions.aspect_ratio`; if only `--size <WxH>` is given, the ratio is inferred
 - Replicate: behavior is model-specific — `google/nano-banana*` uses `aspect_ratio`, `bytedance/seedream-*` uses documented Replicate ratios, Wan 2.7 maps `--ar` to a concrete `size`
 - MiniMax: official `aspect_ratio` values; if `--size <WxH>` is given without `--ar`, sends `width`/`height` for `image-01`

skills/baoyu-imagine/references/config/first-time-setup.md

@@ -46,7 +46,7 @@ options:
   - label: "Google (Recommended)"
     description: "Gemini multimodal - high quality, reference images, flexible sizes"
   - label: "OpenAI"
-    description: "GPT Image - consistent quality, reliable output"
+    description: "GPT Image 2 - latest OpenAI image model, reference-image workflows"
   - label: "Azure OpenAI"
     description: "Azure-hosted GPT Image deployments with resource-specific routing"
   - label: "OpenRouter"
@@ -101,10 +101,12 @@ Only show if user selected Azure OpenAI.
 header: "Azure Deploy"
 question: "Default Azure image deployment name?"
 options:
-  - label: "gpt-image-1.5 (Recommended)"
+  - label: "gpt-image-2 (Recommended)"
-    description: "Best default if your Azure deployment uses the same name"
+    description: "Use if your Azure deployment uses the GPT Image 2 model name"
-  - label: "gpt-image-1"
+  - label: "gpt-image-1.5"
     description: "Previous GPT Image deployment name"
+  - label: "gpt-image-1"
+    description: "Earlier GPT Image deployment name"
 ```
 
 ### Question 2d: Default MiniMax Model
@@ -214,10 +216,12 @@ options:
 header: "OpenAI Model"
 question: "Choose a default OpenAI image generation model?"
 options:
-  - label: "gpt-image-1.5 (Recommended)"
+  - label: "gpt-image-2 (Recommended)"
-    description: "Latest GPT Image model, high quality"
+    description: "Latest GPT Image model, flexible sizes up to 4K, high-fidelity image inputs"
+  - label: "gpt-image-1.5"
+    description: "Previous GPT Image model"
   - label: "gpt-image-1"
-    description: "Previous generation GPT Image model"
+    description: "Earlier GPT Image model"
 ```
 
 ### Azure Deployment Selection
@@ -226,8 +230,10 @@ options:
 header: "Azure Deploy"
 question: "Choose a default Azure image deployment name?"
 options:
-  - label: "gpt-image-1.5 (Recommended)"
+  - label: "gpt-image-2 (Recommended)"
-    description: "Use when your Azure deployment name matches the GPT-image-1.5 model"
+    description: "Use when your Azure deployment name matches the GPT Image 2 model"
+  - label: "gpt-image-1.5"
+    description: "Use when your Azure deployment name matches the GPT Image 1.5 model"
   - label: "gpt-image-1"
     description: "Use when your Azure deployment name matches GPT-image-1"
 ```

skills/baoyu-imagine/references/config/preferences-schema.md

@@ -23,8 +23,8 @@ default_image_api_dialect: null  # openai-native|ratio-metadata|null (OpenAI-com
 
 default_model:
   google: null              # e.g., "gemini-3-pro-image-preview", "gemini-3.1-flash-image-preview"
-  openai: null              # e.g., "gpt-image-1.5", "gpt-image-1"
+  openai: null              # e.g., "gpt-image-2", "gpt-image-1.5", "gpt-image-1"
-  azure: null               # Azure deployment name, e.g., "gpt-image-1.5" or "image-prod"
+  azure: null               # Azure deployment name, e.g., "gpt-image-2" or "image-prod"
   openrouter: null          # e.g., "google/gemini-3.1-flash-image-preview"
   dashscope: null           # e.g., "qwen-image-2.0-pro"
   zai: null                 # e.g., "glm-image"
@@ -106,8 +106,8 @@ default_image_size: 2K
 default_image_api_dialect: null
 default_model:
   google: "gemini-3-pro-image-preview"
-  openai: "gpt-image-1.5"
+  openai: "gpt-image-2"
-  azure: "gpt-image-1.5"
+  azure: "gpt-image-2"
   openrouter: "google/gemini-3.1-flash-image-preview"
   dashscope: "qwen-image-2.0-pro"
   zai: "glm-image"

skills/baoyu-imagine/references/usage-examples.md

@@ -25,10 +25,13 @@ ${BUN_X} {baseDir}/scripts/main.ts --prompt "Make blue" --image out.png --ref so
 
 ```bash
 # OpenAI
-${BUN_X} {baseDir}/scripts/main.ts --prompt "A cat" --image out.png --provider openai
+${BUN_X} {baseDir}/scripts/main.ts --prompt "A cat" --image out.png --provider openai --model gpt-image-2
 
 # Azure OpenAI (model = deployment name)
-${BUN_X} {baseDir}/scripts/main.ts --prompt "A cat" --image out.png --provider azure --model gpt-image-1.5
+${BUN_X} {baseDir}/scripts/main.ts --prompt "A cat" --image out.png --provider azure --model gpt-image-2
+
+# OpenAI GPT Image 2 custom 4K size
+${BUN_X} {baseDir}/scripts/main.ts --prompt "A cinematic landscape" --image out.png --provider openai --model gpt-image-2 --size 3840x2160
 
 # Google with explicit model
 ${BUN_X} {baseDir}/scripts/main.ts --prompt "Make blue" --image out.png --provider google --model gemini-3-pro-image-preview --ref source.png

skills/baoyu-imagine/scripts/main.test.ts

@@ -133,7 +133,7 @@ default_image_size: 2K
 default_image_api_dialect: ratio-metadata
 default_model:
   google: gemini-3-pro-image-preview
-  openai: gpt-image-1.5
+  openai: gpt-image-2
   zai: glm-image
   azure: image-prod
   minimax: image-01
@@ -165,7 +165,7 @@ batch:
   assert.equal(config.default_image_size, "2K");
   assert.equal(config.default_image_api_dialect, "ratio-metadata");
   assert.equal(config.default_model?.google, "gemini-3-pro-image-preview");
-  assert.equal(config.default_model?.openai, "gpt-image-1.5");
+  assert.equal(config.default_model?.openai, "gpt-image-2");
   assert.equal(config.default_model?.zai, "glm-image");
   assert.equal(config.default_model?.azure, "image-prod");
   assert.equal(config.default_model?.minimax, "image-01");

skills/baoyu-imagine/scripts/main.ts

@@ -124,7 +124,7 @@ Environment variables:
   JIMENG_ACCESS_KEY_ID      Jimeng Access Key ID
   JIMENG_SECRET_ACCESS_KEY  Jimeng Secret Access Key
   ARK_API_KEY               Seedream/Ark API key
-  OPENAI_IMAGE_MODEL        Default OpenAI model (gpt-image-1.5)
+  OPENAI_IMAGE_MODEL        Default OpenAI model (gpt-image-2)
   OPENROUTER_IMAGE_MODEL    Default OpenRouter model (google/gemini-3.1-flash-image-preview)
   GOOGLE_IMAGE_MODEL        Default Google model (gemini-3-pro-image-preview)
   DASHSCOPE_IMAGE_MODEL     Default DashScope model (qwen-image-2.0-pro)
@@ -151,7 +151,7 @@ Environment variables:
   AZURE_OPENAI_BASE_URL     Azure OpenAI resource or deployment endpoint
   AZURE_OPENAI_DEPLOYMENT   Default Azure deployment name
   AZURE_API_VERSION         Azure API version (default: 2025-04-01-preview)
-  AZURE_OPENAI_IMAGE_MODEL  Backward-compatible Azure deployment/model alias (defaults to gpt-image-1.5)
+  AZURE_OPENAI_IMAGE_MODEL  Backward-compatible Azure deployment/model alias (defaults to gpt-image-2)
   SEEDREAM_BASE_URL         Custom Seedream endpoint
   BAOYU_IMAGE_GEN_MAX_WORKERS  Override batch worker cap
   BAOYU_IMAGE_GEN_<PROVIDER>_CONCURRENCY  Override provider concurrency

skills/baoyu-imagine/scripts/providers/azure.ts

@@ -46,7 +46,7 @@ export function getDefaultModel(): string {
     }
   }
 
-  return process.env.AZURE_OPENAI_IMAGE_MODEL || "gpt-image-1.5";
+  return process.env.AZURE_OPENAI_IMAGE_MODEL || "gpt-image-2";
 }
 
 function getEndpoint(): AzureEndpoint {

skills/baoyu-imagine/scripts/providers/openai.test.ts

@@ -1,9 +1,11 @@
 import assert from "node:assert/strict";
 import test from "node:test";
 
+import type { CliArgs } from "../types.ts";
 import {
   buildOpenAIGenerationsBody,
   extractImageFromResponse,
+  getDefaultModel,
   getOpenAIAspectRatio,
   getOpenAIImageApiDialect,
   getOpenAIResolution,
@@ -13,9 +15,33 @@ import {
   inferAspectRatioFromSize,
   inferResolutionFromSize,
   parseAspectRatio,
+  validateArgs,
 } from "./openai.ts";
 
+function makeArgs(overrides: Partial<CliArgs> = {}): CliArgs {
+  return {
+    prompt: null,
+    promptFiles: [],
+    imagePath: null,
+    provider: null,
+    model: null,
+    aspectRatio: null,
+    size: null,
+    quality: "2k",
+    imageSize: null,
+    imageApiDialect: null,
+    referenceImages: [],
+    n: 1,
+    batchFile: null,
+    jobs: null,
+    json: false,
+    help: false,
+    ...overrides,
+  };
+}
+
 test("OpenAI aspect-ratio parsing and size selection match model families", () => {
+  assert.equal(getDefaultModel(), "gpt-image-2");
   assert.deepEqual(parseAspectRatio("16:9"), { width: 16, height: 9 });
   assert.equal(parseAspectRatio("wide"), null);
   assert.equal(parseAspectRatio("0:1"), null);
@@ -25,6 +51,10 @@ test("OpenAI aspect-ratio parsing and size selection match model families", () =
   assert.equal(getOpenAISize("dall-e-2", "16:9", "2k"), "1024x1024");
   assert.equal(getOpenAISize("gpt-image-1.5", "16:9", "2k"), "1536x1024");
   assert.equal(getOpenAISize("gpt-image-1.5", "4:3", "2k"), "1024x1024");
+  assert.equal(getOpenAISize("gpt-image-2", "16:9", "2k"), "2048x1152");
+  assert.equal(getOpenAISize("gpt-image-2", "9:16", "2k"), "1152x2048");
+  assert.equal(getOpenAISize("gpt-image-2", "4:3", "2k"), "2048x1536");
+  assert.equal(getOpenAISize("gpt-image-2", "2.35:1", "normal"), "1248x528");
   assert.equal(inferAspectRatioFromSize("1536x1024"), "3:2");
   assert.equal(inferResolutionFromSize("1536x1024"), "2K");
   assert.equal(getOpenAIAspectRatio({ aspectRatio: null, size: "2048x1152" }), "16:9");
@@ -37,7 +67,7 @@ test("OpenAI aspect-ratio parsing and size selection match model families", () =
 
 test("OpenAI generations body switches between native and ratio-metadata dialects", () => {
   assert.deepEqual(
-    buildOpenAIGenerationsBody("Draw a skyline", "gpt-image-1.5", {
+    buildOpenAIGenerationsBody("Draw a skyline", "gpt-image-2", {
       aspectRatio: "16:9",
       size: null,
       quality: "2k",
@@ -45,9 +75,10 @@ test("OpenAI generations body switches between native and ratio-metadata dialect
       imageApiDialect: null,
     }),
     {
-      model: "gpt-image-1.5",
+      model: "gpt-image-2",
       prompt: "Draw a skyline",
-      size: "1536x1024",
+      size: "2048x1152",
+      quality: "high",
     },
   );
 
@@ -90,6 +121,28 @@ test("OpenAI generations body switches between native and ratio-metadata dialect
   );
 });
 
+test("OpenAI validates gpt-image-2 custom size constraints", () => {
+  assert.doesNotThrow(() =>
+    validateArgs("gpt-image-2", makeArgs({ size: "3840x2160" })),
+  );
+  assert.doesNotThrow(() =>
+    validateArgs("gpt-image-2-2026-04-21", makeArgs({ aspectRatio: "2.35:1" })),
+  );
+
+  assert.throws(
+    () => validateArgs("gpt-image-2", makeArgs({ size: "1024x576" })),
+    /total pixels/,
+  );
+  assert.throws(
+    () => validateArgs("gpt-image-2", makeArgs({ size: "1025x1024" })),
+    /multiples of 16px/,
+  );
+  assert.throws(
+    () => validateArgs("gpt-image-2", makeArgs({ aspectRatio: "4:1" })),
+    /must not exceed 3:1/,
+  );
+});
+
 test("OpenAI mime-type detection covers supported reference image extensions", () => {
   assert.equal(getMimeType("frame.png"), "image/png");
   assert.equal(getMimeType("frame.jpg"), "image/jpeg");

skills/baoyu-imagine/scripts/providers/openai.ts

@@ -3,7 +3,7 @@ import { readFile } from "node:fs/promises";
 import type { CliArgs, OpenAIImageApiDialect } from "../types";
 
 export function getDefaultModel(): string {
-  return process.env.OPENAI_IMAGE_MODEL || "gpt-image-1.5";
+  return process.env.OPENAI_IMAGE_MODEL || "gpt-image-2";
 }
 
 type OpenAIImageResponse = { data: Array<{ url?: string; b64_json?: string }> };
@@ -25,6 +25,55 @@ type SizeMapping = {
 
 type OpenAIGenerationsBody = Record<string, unknown>;
 
+function isGptImageModel(model: string): boolean {
+  return model.includes("gpt-image");
+}
+
+function isGptImage2Model(model: string): boolean {
+  return model.includes("gpt-image-2");
+}
+
+function roundToMultiple(value: number, multiple: number): number {
+  return Math.max(multiple, Math.round(value / multiple) * multiple);
+}
+
+function buildGptImage2SizeFromAspectRatio(
+  ar: string | null,
+  quality: CliArgs["quality"],
+): string {
+  const parsed = ar ? parseAspectRatio(ar) : null;
+  const ratio = parsed ? parsed.width / parsed.height : 1;
+
+  if (!parsed || Math.abs(ratio - 1) < 0.1) {
+    const edge = quality === "2k" ? 2048 : 1024;
+    return `${edge}x${edge}`;
+  }
+
+  const targetLongEdge = quality === "2k" ? 2048 : 1024;
+  let width: number;
+  let height: number;
+
+  if (ratio > 1) {
+    width = targetLongEdge;
+    height = roundToMultiple(width / ratio, 16);
+  } else {
+    height = targetLongEdge;
+    width = roundToMultiple(height * ratio, 16);
+  }
+
+  while (width * height < 655_360) {
+    if (ratio > 1) {
+      width += 16;
+      height = roundToMultiple(width / ratio, 16);
+    } else {
+      height += 16;
+      width = roundToMultiple(height * ratio, 16);
+    }
+  }
+
+  return `${width}x${height}`;
+}
+
 export function getOpenAISize(
   model: string,
   ar: string | null,
@@ -37,6 +86,10 @@ export function getOpenAISize(
     return "1024x1024";
   }
 
+  if (isGptImage2Model(model)) {
+    return buildGptImage2SizeFromAspectRatio(ar, quality);
+  }
+
   const sizes: SizeMapping = isDalle3
     ? {
         square: "1024x1024",
@@ -127,6 +180,18 @@ export function getOpenAIResolution(
   return args.quality === "normal" ? "1K" : "2K";
 }
 
+function getOpenAIQuality(model: string, quality: CliArgs["quality"]): "standard" | "hd" | "medium" | "high" | null {
+  if (model.includes("dall-e-3")) {
+    return quality === "2k" ? "hd" : "standard";
+  }
+
+  if (isGptImageModel(model)) {
+    return quality === "2k" ? "high" : "medium";
+  }
+
+  return null;
+}
+
 export function getOrientationFromAspectRatio(ar: string): "landscape" | "portrait" | null {
   const parsed = parseAspectRatio(ar);
   if (!parsed) return null;
@@ -163,13 +228,53 @@ export function buildOpenAIGenerationsBody(
     size: args.size || getOpenAISize(model, args.aspectRatio, args.quality),
   };
 
-  if (model.includes("dall-e-3")) {
+  const quality = getOpenAIQuality(model, args.quality);
-    body.quality = args.quality === "2k" ? "hd" : "standard";
+  if (quality) {
+    body.quality = quality;
   }
 
   return body;
 }
 
+export function validateArgs(model: string, args: CliArgs): void {
+  if (!isGptImage2Model(model)) return;
+
+  if (args.aspectRatio && !args.size) {
+    const parsed = parseAspectRatio(args.aspectRatio);
+    if (!parsed) {
+      throw new Error(`Invalid gpt-image-2 aspect ratio: ${args.aspectRatio}`);
+    }
+    const ratio = parsed.width / parsed.height;
+    if (Math.max(ratio, 1 / ratio) > 3) {
+      throw new Error("gpt-image-2 aspect ratio must not exceed 3:1.");
+    }
+  }
+
+  if (!args.size) return;
+
+  const parsedSize = parsePixelSize(args.size);
+  if (!parsedSize) {
+    throw new Error(`Invalid gpt-image-2 --size: ${args.size}. Expected <width>x<height>.`);
+  }
+
+  const { width, height } = parsedSize;
+  const totalPixels = width * height;
+  const ratio = Math.max(width, height) / Math.min(width, height);
+
+  if (Math.max(width, height) > 3840) {
+    throw new Error("gpt-image-2 --size maximum edge length must be 3840px or less.");
+  }
+  if (width % 16 !== 0 || height % 16 !== 0) {
+    throw new Error("gpt-image-2 --size width and height must both be multiples of 16px.");
+  }
+  if (ratio > 3) {
+    throw new Error("gpt-image-2 --size long edge to short edge ratio must not exceed 3:1.");
+  }
+  if (totalPixels < 655_360 || totalPixels > 8_294_400) {
+    throw new Error("gpt-image-2 --size total pixels must be between 655,360 and 8,294,400.");
+  }
+}
+
 export async function generateImage(
   prompt: string,
   model: string,
@@ -198,7 +303,7 @@ export async function generateImage(
     }
     if (model.includes("dall-e-2") || model.includes("dall-e-3")) {
       throw new Error(
-        "Reference images with OpenAI in this skill require GPT Image models. Use --model gpt-image-1.5 (or another gpt-image model)."
+        "Reference images with OpenAI in this skill require GPT Image models. Use --model gpt-image-2 (or another gpt-image model)."
       );
     }
     const size = args.size || getOpenAISize(model, args.aspectRatio, args.quality);
@@ -283,8 +388,9 @@ async function generateWithOpenAIEdits(
   form.append("prompt", prompt);
   form.append("size", size);
 
-  if (model.includes("gpt-image")) {
+  const openAIQuality = getOpenAIQuality(model, quality);
-    form.append("quality", quality === "2k" ? "high" : "medium");
+  if (openAIQuality && openAIQuality !== "standard" && openAIQuality !== "hd") {
+    form.append("quality", openAIQuality);
   }
 
   for (const refPath of referenceImages) {

skills/baoyu-infographic/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: baoyu-infographic
 description: Generate professional infographics with 21 layout types and 21 visual styles. Analyzes content, recommends layout×style combinations, and generates publication-ready infographics. Use when user asks to create "infographic", "信息图", "visual summary", "可视化", or "高密度信息大图".
-version: 1.56.1
+version: 1.57.0
 metadata:
   openclaw:
     homepage: https://github.com/JimLiu/baoyu-skills#baoyu-infographic
@@ -23,11 +23,17 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-{type}-[slug].md`) BEFORE invoking any backend. The backend receives the prompt file (or its content); the file is the reproducibility record and lets you switch backends without regenerating prompts.
 
@@ -201,7 +207,7 @@ Check EXTEND.md in priority order — the first one found wins:
 | Found | Read, parse, display a one-line summary |
 | Not found | Ask the user with `AskUserQuestion` (see `references/config/first-time-setup.md`) |
 
-**EXTEND.md supports**: preferred layout/style, default aspect ratio, custom style definitions, language preference.
+**EXTEND.md supports**: preferred layout/style, default aspect ratio, language preference, preferred image backend, custom style definitions.
 
 Schema: `references/config/preferences-schema.md`
 
@@ -248,6 +254,7 @@ Ask the user to confirm the questions below following the [User Input Tools](#us
 | 1 | **Combination** | Always | 3+ layout×style combos with rationale |
 | 2 | **Aspect** | Always | Named presets (landscape/portrait/square) or custom W:H ratio (e.g., 3:4, 4:3, 2.35:1) |
 | 3 | **Language** | Only if source ≠ user language | Language for text content |
+| 4 | **Image Backend** | Only if step 3 of the `## Image Generation Tools` rule needs to ask (no runtime-native tool AND multiple non-native backends, OR `preferred_image_backend: ask`) | Available backends |
 
 ### Step 5: Generate Prompt → `prompts/infographic.md`
 
@@ -266,7 +273,7 @@ Combine:
 
 ### Step 6: Generate Image
 
-1. Select the backend via the `## Image Generation Tools` rule at the top: use whatever is available; if multiple, ask the user once. Do this once per session.
+1. Resolve the backend per the `## Image Generation Tools` rule at the top of this file.
 2. Ensure the full final prompt is persisted at `prompts/infographic.md` (already written in Step 5) BEFORE invoking the backend — the file is the reproducibility record.
 3. **Check for existing file**: Before generating, check if `infographic.png` exists
    - If exists: Rename to `infographic-backup-YYYYMMDD-HHMMSS.png`
@@ -275,7 +282,7 @@ Combine:
 
 ### Step 7: Output Summary
 
-Report: topic, layout, style, aspect, language, output path, files created.
+Report: topic, layout, style, aspect, language, image backend, output path, files created.
 
 ## References
 
@@ -285,6 +292,15 @@ Report: topic, layout, style, aspect, language, output path, files created.
 - `references/layouts/<layout>.md` - 21 layout definitions
 - `references/styles/<style>.md` - 21 style definitions
 
-## Extension Support
+## Changing Preferences
 
-Custom configurations via EXTEND.md. See **Step 1.1** for paths and supported options.
+EXTEND.md lives at the first matching path in Step 1.1. Three ways to change it:
+
+- **Edit directly** — open EXTEND.md and change fields. Full schema: `references/config/preferences-schema.md`.
+- **Reconfigure interactively** — delete EXTEND.md (or ask "reconfigure baoyu-infographic preferences" / "重新配置"). The next run re-triggers first-time setup.
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `preferred_layout: dense-modules`, `preferred_style: morandi-journal`, `preferred_aspect: portrait`, `language: zh` — shift the Step-3 recommendations and Step-4 defaults.

skills/baoyu-infographic/references/config/first-time-setup.md

@@ -141,13 +141,13 @@ preferred_layout: [selected layout or null]
 preferred_style: [selected style or null]
 preferred_aspect: [landscape|portrait|square|null]
 language: [selected language or null]
+preferred_image_backend: auto
 custom_styles: []
 ---
 ```
 
+`preferred_image_backend: auto` is the baked-in default — first-time setup never asks about it. The `## Image Generation Tools` rule in SKILL.md then picks the runtime-native tool (Codex `imagegen`, Hermes `image_generate`, etc.) when one is available, and falls back to installed backends like `baoyu-imagine`.
+
 ## Modifying Preferences Later
 
-Users can edit EXTEND.md directly or trigger setup again:
+See the `## Changing Preferences` section in `SKILL.md` for the canonical list of common edits (pin backend, change layout/style defaults, retrigger setup). Full schema: `references/config/preferences-schema.md`.
-- Delete EXTEND.md to re-trigger setup
-- Edit YAML frontmatter for quick changes
-- Full schema: `references/config/preferences-schema.md`

skills/baoyu-infographic/references/config/preferences-schema.md

@@ -17,6 +17,8 @@ preferred_aspect: null    # landscape|portrait|square|null  (custom W:H also acc
 
 language: null            # zh|en|ja|ko|null (null = auto-detect from source)
 
+preferred_image_backend: auto   # auto|ask|<backend-id>
+
 custom_styles:            # extra style definitions merged with the 21 built-ins
   - name: my-brand
     description: "Short description shown in Step 3 recommendations"
@@ -33,8 +35,19 @@ custom_styles:            # extra style definitions merged with the 21 built-ins
 | `preferred_style` | string\|null | null | Pre-selected style — surfaces as the top recommendation in Step 3 |
 | `preferred_aspect` | string\|null | null | Default aspect for Step 4 (named preset or W:H string) |
 | `language` | string\|null | null | Output language (null = auto-detect from source content) |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. |
 | `custom_styles` | array | [] | Additional styles available alongside the 21 built-ins |
 
+Backend resolution logic is documented in the `## Image Generation Tools` section of `SKILL.md`. This doc only defines the field.
+
+Example backend ids:
+
+| Value | Meaning |
+|-------|---------|
+| `codex-imagegen` | Codex built-in `imagegen` tool |
+| `baoyu-imagine` | `baoyu-imagine` skill / script backend |
+| `image_generate` | Generic runtime image tool such as Hermes |
+
 ## Layout Options
 
 See the **Layout Gallery (21)** table in `SKILL.md` for the canonical list. Common picks:
@@ -87,6 +100,8 @@ language: zh
 ---
 ```
 
+`preferred_image_backend` is omitted above; absence is treated as `auto`.
+
 ## Example: Full Preferences
 
 ```yaml
@@ -99,6 +114,8 @@ preferred_aspect: portrait
 
 language: zh
 
+preferred_image_backend: codex-imagegen
+
 custom_styles:
   - name: my-brand
     description: "Brand-aligned warm pastel infographic"

skills/baoyu-slide-deck/SKILL.md

@@ -27,14 +27,22 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-slide-[slug].md`) BEFORE invoking any backend. The file is the reproducibility record and lets you switch backends without regenerating prompts.
 
+Concrete tool names (`imagegen`, `image_generate`, `baoyu-imagine`) above are examples — substitute the local equivalents under the same rule.
+
 ## Language
 
 Respond in the user's language across questions, progress reports, error messages, and the completion summary. Keep technical tokens (style names, file paths, code) in English.
@@ -320,4 +328,14 @@ See `references/modification-guide.md` for full details.
 - For sensitive public figures, prefer stylized alternatives to avoid likeness issues.
 - Maintain visual consistency via the session ID when the backend supports it.
 
-Custom configurations via EXTEND.md. See Step 1.1 for paths and schema.
+## Changing Preferences
+
+EXTEND.md lives at the first matching path listed in Step 1.1. Two ways to change it:
+
+- **Edit directly** — open EXTEND.md and change fields. Full schema: `references/config/preferences-schema.md`.
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `preferred_style: blueprint`, `preferred_audience: experts`, `language: zh`.

skills/baoyu-slide-deck/references/config/preferences-schema.md

@@ -12,6 +12,7 @@ style: blueprint              # Preset name OR "custom"
 audience: general             # beginners | intermediate | experts | executives | general
 language: auto                # auto | en | zh | ja | etc.
 review: true                  # true = review outline before generation
+preferred_image_backend: auto # auto | ask | <backend-id>
 
 ## Custom Dimensions (only when style: custom)
 dimensions:
@@ -40,6 +41,7 @@ custom_styles:
 | `audience` | string | `general` | Default target audience |
 | `language` | string | `auto` | Output language (auto = detect from input) |
 | `review` | boolean | `true` | Show outline review before generation |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. Resolution logic is documented in `SKILL.md`'s `## Image Generation Tools` section. |
 
 ### Custom Dimensions
 

skills/baoyu-xhs-images/SKILL.md

@@ -24,14 +24,22 @@ Concrete `AskUserQuestion` references below are examples — substitute the loca
 
 ## Image Generation Tools
 
-When this skill needs to render an image:
+When this skill needs to render an image, resolve the backend in this order:
 
-- **Use whatever image-generation tool or skill is available** in the current runtime — e.g., Codex `imagegen`, Hermes `image_generate`, `baoyu-imagine`, or any equivalent the user has installed.
+1. **Current-request override** — if the user names a specific backend in the current message, use it.
-- **If multiple are available**, ask the user **once** at the start which to use (batch with any other initial questions).
+2. **Saved preference** — if `EXTEND.md` sets `preferred_image_backend` to a backend available right now, use it.
-- **If none are available**, tell the user and ask how to proceed.
+3. **Auto-select** (when the preference is `auto`, unset, or the pinned backend isn't available):
+   - If the current runtime exposes a native image tool (e.g., Codex `imagegen`, Hermes `image_generate`), use it. Runtime-native tools are preferred by default — agents that know their own tool inventory should surface the native one here.
+   - Otherwise, if exactly one non-native backend is installed (e.g., `baoyu-imagine`), use it.
+   - Otherwise (multiple non-native backends with no runtime-native tool), ask the user once — batch with any other initial questions.
+4. **If none are available**, tell the user and ask how to proceed.
+
+Setting `preferred_image_backend: ask` forces the step-3 prompt every run regardless of available backends. Users change the pinned backend via the `## Changing Preferences` section below.
 
 **Prompt file requirement (hard)**: write each image's full, final prompt to a standalone file under `prompts/` (naming: `NN-{type}-[slug].md`) BEFORE invoking any backend. The file is the reproducibility record and lets you switch backends without regenerating prompts.
 
+Concrete tool names (`imagegen`, `image_generate`, `baoyu-imagine`) above are examples — substitute the local equivalents under the same rule.
+
 ## Language
 
 Respond in the user's language across questions, progress, errors, and completion summary. Keep technical tokens (style names, file paths, code) in English.
@@ -418,4 +426,16 @@ Always update the prompt file before regenerating — it's the source of truth a
 - For sensitive public figures, use stylized cartoon alternatives.
 - Smart Confirm (Step 2) is required; Detailed mode adds a second confirmation (2a + 2c).
 
-Custom configurations via EXTEND.md. See Step 0 for paths and schema.
+## Changing Preferences
+
+EXTEND.md lives at the first matching path listed in Step 0. Three ways to change it:
+
+- **Edit directly** — open EXTEND.md and change fields. Full schema: `references/config/preferences-schema.md`.
+- **Reconfigure interactively** — delete EXTEND.md (or ask "reconfigure baoyu-xhs-images preferences" / "重新配置"). The next run re-triggers first-time setup.
+- **Common one-line edits**:
+  - `preferred_image_backend: auto` — default; runtime-native tool wins, falls back to the only installed backend, asks only if multiple non-native are present.
+  - `preferred_image_backend: codex-imagegen` — pin to Codex's built-in.
+  - `preferred_image_backend: baoyu-imagine` — pin to the baoyu-imagine skill.
+  - `preferred_image_backend: ask` — confirm backend every run.
+  - `preferred_style: notion`, `preferred_layout: dense`, `preferred_palette: macaron`, `language: zh`.
+  - `watermark.enabled: true` + `watermark.content: "@handle"` — add a watermark.

skills/baoyu-xhs-images/references/config/first-time-setup.md

@@ -110,13 +110,13 @@ preferred_style:
   description: ""
 preferred_layout: null
 language: null
+preferred_image_backend: auto
 custom_styles: []
 ---
 ```
 
+`preferred_image_backend: auto` is the baked-in default — first-time setup does not ask about it. The `## Image Generation Tools` rule in SKILL.md then picks the runtime-native tool (Codex `imagegen`, Hermes `image_generate`, etc.) when available, and falls back to installed backends.
+
 ## Modifying Preferences Later
 
-Users can edit EXTEND.md directly or run setup again:
+See the `## Changing Preferences` section in `SKILL.md` for the canonical list of common edits (pin backend, change defaults, retrigger setup). Full schema: `preferences-schema.md`.
-- Delete EXTEND.md to trigger setup
-- Edit YAML frontmatter for quick changes
-- Full schema: `config/preferences-schema.md`

skills/baoyu-xhs-images/references/config/preferences-schema.md

@@ -24,6 +24,8 @@ preferred_layout: null    # sparse|balanced|dense|list|comparison|flow
 
 language: null            # zh|en|ja|ko|auto
 
+preferred_image_backend: auto  # auto|ask|<backend-id>
+
 custom_styles:
   - name: my-style
     description: "Style description"
@@ -49,6 +51,7 @@ custom_styles:
 | `preferred_style.description` | string | "" | Custom notes/override |
 | `preferred_layout` | string | null | Layout preference or null |
 | `language` | string | null | Output language (null = auto-detect) |
+| `preferred_image_backend` | string | `auto` | Image backend selection. `auto` = prefer runtime-native tool, fall back to the only installed backend, ask if multiple non-native are present. `ask` = always confirm on every run. `<backend-id>` (e.g., `codex-imagegen`, `baoyu-imagine`, `image_generate`) = pin this backend when available; fall back to `auto` when it isn't. Absent = `auto`. Resolution logic is documented in `SKILL.md`'s `## Image Generation Tools` section. |
 | `custom_styles` | array | [] | User-defined styles |
 
 ## Position Options
@@ -104,6 +107,8 @@ preferred_layout: dense
 
 language: zh
 
+preferred_image_backend: codex-imagegen
+
 custom_styles:
   - name: corporate
     description: "Professional B2B style"