happy-image-gen

Original：🇺🇸 English

Translated

12 scripts

Universal AI image generation supporting OpenAI DALL·E / gpt-image, Google Gemini Image / Imagen, Replicate (Flux / SDXL / any model), Stability AI, FAL, Ark (Seedream 4.5), Bailian (qwen-image / wanx), and SiliconFlow. Use this skill whenever the user asks to generate, create, draw, illustrate, render, or synthesize images from text prompts or reference images. Typical phrases include "draw a ...", "generate an image of ...", "画一张 ...", "给我来张图", "make a poster of ...", "create an illustration ...", or any mention of image-generation model families like DALL·E, gpt-image, Flux, SDXL, Seedream, Imagen, Gemini image, Kolors, or Wanx. Always use this skill even if the user does not name a specific model — pick a provider based on their EXTEND.md defaults or available API keys in the environment. Do NOT use this skill when the user explicitly mentions 即梦 / Dreamina / Jimeng — those go to happy-dreamina instead.

2installs

Sourceiamzhihuix/happy-claude-skills

Added on2026-05-10

NPX Install

npx skill4agent add iamzhihuix/happy-claude-skills happy-image-gen

SKILL.md Content

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happy-image-gen

Generates still images across 8 providers through one CLI:

bun scripts/main.ts ...

. The same CLI handles text-to-image and image-to-image (reference-driven) edits.

Quick usage

bash

bun scripts/main.ts --prompt "A calico cat on green grass, cinematic light" --ar 16:9 --image ./out.png

When to invoke this skill

Invoke this skill whenever the user:

Asks to generate, create, draw, render, illustrate, or synthesize an image from text.
Asks to restyle or transform an existing image they provide a path to.
Names any image-generation model (DALL·E, gpt-image, Flux, SDXL, Gemini Image, Imagen, Seedream, Kolors, Wanx, Stable Diffusion) without specifying 即梦/Dreamina/Jimeng.

Route to

happy-dreamina

instead when the user explicitly names 即梦, Jimeng, or the

dreamina

CLI.

Step 0: Preflight (BLOCKING — run before any generation)

Run these checks:

Locate EXTEND.md config. Check in order:

./.happy-skills/happy-image-gen/EXTEND.md

(project)

$XDG_CONFIG_HOME/happy-skills/happy-image-gen/EXTEND.md

~/.happy-skills/happy-image-gen/EXTEND.md

(user)

If none exist, run

bun scripts/main.ts --setup

and follow

references/config/first-time-setup.md

to create one. Do not proceed to generation until the user has at least one provider configured.

Verify a provider is usable. Confirm either an env var is set (e.g.,
```
OPENAI_API_KEY
```
) or EXTEND.md references an
```
api_key_env
```
/
```
api_key_source
```
that resolves. If nothing resolves, loop back to setup.
Verify Bun is available. Run
```
command -v bun
```
. If missing, fall back to
```
npx -y bun scripts/main.ts ...
```
.

Step 1: Choose a provider

Pick in this order of preference:

```
--provider <id>
```
explicitly passed by the user.
The
```
default_provider
```
in EXTEND.md.
The first provider whose API key is present in the environment. Priority when auto-detecting:
```
openai
```
→
```
google
```
→
```
replicate
```
→
```
stability
```
→
```
fal
```
→
```
ark
```
→
```
bailian
```
→
```
siliconflow
```
.

See

references/providers.md

for each provider's required env vars, default models, and strengths (e.g., prefer

google

for text-in-image,

replicate

for Flux-family photorealism,

ark

for Chinese text fidelity).

Step 2: Fill in parameters

--prompt
: the user's full request, trimmed. Always double-quote.
--ar
: aspect ratio —
```
1:1
```
/
```
16:9
```
/
```
9:16
```
/
```
3:4
```
/
```
4:3
```
. See
```
references/aspect_ratio_map.md
```
for how each provider interprets this.
--quality
:
```
draft
```
(fastest + cheapest),
```
hd
```
(default), or
```
ultra
```
(4K-class, slower).
--ref <path>
: repeat for multiple reference images. Not every provider supports this — see providers.md.
--model
: override the default model for the chosen provider. Omit unless the user asked for a specific one.
--image <path>
: REQUIRED — output file path. Use a descriptive name (e.g.,
```
./out/hero-landscape.png
```
).

Step 3: Run

bash

bun scripts/main.ts \
  --prompt "..." \
  --image ./out.png \
  --provider openai \
  --ar 1:1 \
  --quality hd

On success the CLI prints the resolved absolute path and byte count. In

--json

mode it emits:

json

{ "success": true, "provider": "openai", "model": "gpt-image-1", "image": "/abs/path.png", "size_bytes": 1416341, "format": "png" }

Echo the path back to the user.

Step 4: Handle errors

config: No provider selected ...
— no API key in env and no EXTEND.md. Loop back to Step 0.
[openai] OpenAI images API 401 ...
— key invalid or expired. Ask the user to refresh it.
[openai] ... 400 ... content_policy_violation
— prompt blocked. Show the raw error to the user; do not paraphrase.
Timeouts / network errors — retry once. If still failing, surface the raw message and
```
provider
```
so the user knows what to check.

See

references/error_codes.md

for a per-provider error table.

References

Read on demand:

references/providers.md
— all 8 providers, required env vars, default models, strengths.
references/aspect_ratio_map.md
— how each provider interprets
```
--ar
```
.
references/error_codes.md
— common errors per provider and fixes.

references/config/first-time-setup.md
— step-by-step for

--setup

.

references/config/extend-schema.md
— EXTEND.md schema reference.

Template for

EXTEND.md

:

assets/EXTEND.template.md

.

happy-image-gen

NPX Install

Tags

SKILL.md Content

happy-image-gen

Quick usage

When to invoke this skill

Step 0: Preflight (BLOCKING — run before any generation)

Step 1: Choose a provider

Step 2: Fill in parameters

Step 3: Run

Step 4: Handle errors

References