local-image-gen-aipc（本地图像生成 aipc）

Model: snake7gun/Z-Image-Turbo-int4-ov (ModelScope INT4) SKILL_VERSION: v1.0.2

Network usage: Setup downloads pip dependencies (some pinned to git+https commits) from github.com, and the model (~10 GB, resume supported) from modelscope.cn. Inference is fully offline — no network calls once setup is complete.

First time? Before using this skill, run these two scripts once in a terminal: `` python setup.py # creates venv, installs dependencies (~5 min) python download_model.py # downloads the model (~10 GB, resumable) `` Both scripts are in the skill directory alongside this SKILL.md.

Directory layout (all auto-created)

{USERNAME}_openvino\
├── venv\                          ← shared venv (created by setup.py)
└── imagegen\
    ├── state.json                 ← written by setup.py
    ├── generate_image.py          ← written in Step 2
    ├── Z-Image-Turbo-int4-ov\    ← downloaded by download_model.py (~10 GB)
    └── outputs\YYYYMMDD_HHMMSS_topic.png

⚠️ Agent instructions

1. Windows / PowerShell only. Never use Linux commands (ls, rm, cat). Never use && or call.
2. Every step reads state.json itself — do not pass paths between steps manually.
3. Use VENV_PY from state.json for all python calls — never use system python for inference.
4. CRITICAL — Never skip Step 2. Always run the version-check python script to write generate_image.py. Never use the Write tool to create or modify it manually.
5. CRITICAL — If generate_image.py fails, do NOT rewrite it manually. Delete it and re-run Step 2's python script to regenerate.
6. Goal: generate an image and send the preview to the conversation.

Auto-recovery policy — try before asking user:

• If STATE=MISSING or VENV_PY=BROKEN: automatically run setup.py (up to 3 attempts). Only ask user if all 3 fail.
• If MODEL_STATUS=MISSING: automatically run download_model.py (up to 3 attempts). Stop if a single attempt exceeds 20 minutes — download supports resume, partial progress is not lost.
• Always announce before each attempt: ⚙️ Auto-installing environment (attempt N/3)…

Pipeline — follow exactly in order, no skipping:

Step 0: expand prompt       → EXPANDED_PROMPT, TOPIC
Step 1: verify environment  → VENV_PY, IMAGE_GEN_DIR confirmed ready
         ↳ if STATE=MISSING or VENV_BROKEN: auto-run setup.py (3 attempts)
         ↳ if MODEL_STATUS=MISSING: auto-run download_model.py (3 attempts)
Step 2: verify deps + write generate_image.py → SCRIPT_UPDATE=DONE/SKIPPED  ← NEVER skip
Step 3: generate + send     → [SUCCESS] + image preview

Step 0: expand prompt (LLM only — no tools)

Do two things simultaneously: ① expand the prompt and ② extract a topic slug (English snake_case, used for the filename).

Expansion structure: [subject] [action/pose] [environment] [lighting/mood] [style] [quality tags]

Prompts can be English or Chinese — no translation needed. Topic slug must always be English to avoid path encoding issues.

Quality tags: photorealistic, 8K resolution, cinematic lighting, masterpiece

Show the result before proceeding:

📝 Input:    {user description}
   Expanded: {full prompt}
   Topic:    {topic_slug}

Step 1: verify environment and model

🔍 Step 1/3: checking environment and model…

python -c "
import json, os, string, subprocess
from pathlib import Path

state = None
for d in string.ascii_uppercase:
    sf = Path(f'{d}:\\\\') / f'{os.environ.get(\"USERNAME\",\"user\").lower()}_openvino' / 'imagegen' / 'state.json'
    if sf.exists():
        state = json.loads(sf.read_text(encoding='utf-8'))
        break

if not state:
    print('STATE=MISSING')
    exit(1)

venv_py      = Path(state['VENV_PY'])
imagegen_dir = Path(state['IMAGE_GEN_DIR'])
model_dir    = imagegen_dir / 'Z-Image-Turbo-int4-ov'

r = subprocess.run([str(venv_py), '--version'], capture_output=True, timeout=10)
if r.returncode != 0:
    print('VENV_PY=BROKEN')
    exit(1)

print(f'VENV_PY={venv_py}')
print(f'IMAGE_GEN_DIR={imagegen_dir}')

required = ['transformer', 'vae_decoder', 'text_encoder']
missing  = [r for r in required if not (model_dir / r).exists()]
if not missing:
    total = sum(f.stat().st_size for f in model_dir.rglob('*') if f.is_file()) / 1024**3
    print(f'MODEL_STATUS=READY  ({total:.2f} GB)')
else:
    print(f'MODEL_STATUS=MISSING  missing={missing}')
    exit(1)
"

On success: record VENV_PY and IMAGE_GEN_DIR from output, proceed to Step 2.

If STATE=MISSING or VENV_PY=BROKEN → auto-run setup.py

python -c "
from pathlib import Path
p = Path(r'{baseDir}') / 'setup.py'
print(f'SETUP_PY={p}') if p.exists() else print('SETUP_PY=NOT_FOUND')
"

Announce and run (up to 3 attempts):

⚙️ Environment not initialized — auto-installing (attempt 1/3)…

python "<SETUP_PY path>"

Re-run Step 1's check after each attempt. If all 3 fail, show manual fallback below.

If MODEL_STATUS=MISSING → auto-run download_model.py

python -c "
from pathlib import Path
p = Path(r'{baseDir}') / 'download_model.py'
print(f'DOWNLOAD_PY={p}') if p.exists() else print('DOWNLOAD_PY=NOT_FOUND')
"

Announce to user and ask how to proceed:

📥 Model not found — download required (~10 GB)
   Estimated time:
   • 100 Mbps → ~15 min
   •  50 Mbps → ~30 min
   •  10 Mbps → ~2 hr
   Download supports resume — safe to interrupt and retry.

   ✅ Start auto-download
   📂 I'll download manually — show me the link

Auto-download (up to 3 attempts, stop if a single attempt exceeds 20 minutes):

python "<DOWNLOAD_PY path>"

Re-run Step 1's check after each attempt.

Manual download fallback:

ModelScope page: https://modelscope.cn/models/snake7gun/Z-Image-Turbo-int4-ov/files

Place all files under <IMAGE_GEN_DIR>\Z-Image-Turbo-int4-ov\. Required subdirs:

Z-Image-Turbo-int4-ov\
├── transformer\
├── vae_decoder\
└── text_encoder\

Then re-run Step 1's check to verify.

Manual fallback (only if all 3 setup auto-attempts fail)

python -c "
from pathlib import Path
skill_dir = Path(r'{baseDir}')
for script in ['setup.py', 'download_model.py']:
    p = skill_dir / script
    if p.exists(): print(f'{script}={p}')
"

Show user:

⚠️ Auto-install failed. Please run manually in a terminal:

① Install environment:
   python "<full path to setup.py>"
   Takes ~5 min, fully automated.

② Download model (~10 GB):
   python "<full path to download_model.py>"
   Resumable — safe to interrupt and retry.

Come back here when done.

Step 2: verify deps and write generate_image.py

✍️ Step 2/3: checking dependencies and script version…

First verify dependencies (run via VENV_PY):

& "<VENV_PY>" -c "
import json, site
from pathlib import Path

EXPECTED_COMMITS = {
    'optimum_intel': '2f62e5ae',
    'diffusers':     'a1f36ee3',
}

def get_git_commit(pkg_name):
    dirs = site.getsitepackages()
    try: dirs += [site.getusersitepackages()]
    except Exception: pass
    for d in dirs:
        for dist in Path(d).glob(f'{pkg_name}*.dist-info'):
            url_file = dist / 'direct_url.json'
            if url_file.exists():
                data = json.loads(url_file.read_text(encoding='utf-8'))
                return data.get('vcs_info', {}).get('commit_id', 'no_vcs_info')
    return 'not_found'

results = {}
for pkg, imp in [('openvino','openvino'),('torch','torch'),('Pillow','PIL'),('modelscope','modelscope')]:
    try:
        ver = getattr(__import__(imp), '__version__', 'OK')
        results[pkg] = ('OK', ver)
    except ImportError as e:
        results[pkg] = ('MISSING', str(e))

try:
    from optimum.intel import OVZImagePipeline
    results['OVZImagePipeline'] = ('OK', 'importable')
except ImportError as e:
    results['OVZImagePipeline'] = ('MISSING', str(e))

for pkg_name, exp in EXPECTED_COMMITS.items():
    actual = get_git_commit(pkg_name)
    if actual == 'not_found':
        results[f'{pkg_name}@commit'] = ('MISSING', 'not installed via git+https')
    elif actual.startswith(exp):
        results[f'{pkg_name}@commit'] = ('OK', actual[:16])
    else:
        results[f'{pkg_name}@commit'] = ('WRONG', f'got {actual[:16]} want {exp}...')

all_ok = all(v[0] == 'OK' for v in results.values())
for k, (status, detail) in results.items():
    icon = '✅' if status == 'OK' else ('⚠️' if status == 'WRONG' else '❌')
    print(f'  {icon} {k}: {detail}')
print('DEP_CHECK=PASS' if all_ok else 'DEP_CHECK=FAIL')
"

Then write generate_image.py:

python -c "
import json, os, string, re
from pathlib import Path

state = None
for d in string.ascii_uppercase:
    sf = Path(f'{d}:\\\\') / f'{os.environ.get(\"USERNAME\",\"user\").lower()}_openvino' / 'imagegen' / 'state.json'
    if sf.exists():
        state = json.loads(sf.read_text(encoding='utf-8'))
        break

if not state:
    print('[ERROR] state.json not found — re-run Step 1')
    exit(1)

imagegen_dir = Path(state['IMAGE_GEN_DIR'])
CURRENT_VERSION = 'v2.0.0'
script = imagegen_dir / 'generate_image.py'

existing = None
if script.exists():
    m = re.search(r\"SKILL_VERSION\s*=\s*[\\\"'](.*?)[\\\"']\", script.read_text(encoding='utf-8', errors='ignore'))
    if m: existing = m.group(1)

if existing == CURRENT_VERSION:
    print('SCRIPT_UPDATE=SKIPPED')
else:
    code = r\'\'\'
SKILL_VERSION = \"v1.0.2\"
import sys, io, os, json, string, argparse, re, subprocess
from datetime import datetime
from pathlib import Path

def get_state():
    for d in string.ascii_uppercase:
        sf = Path(f\"{d}:\\\\\") / f\"{os.environ.get('USERNAME','user').lower()}_openvino\" / \"imagegen\" / \"state.json\"
        if sf.exists():
            return json.loads(sf.read_text(encoding='utf-8'))
    return None

def get_device():
    import openvino as ov
    core = ov.Core()
    devs = core.available_devices
    print(f\"[INFO] Available devices: {devs}\")
    for d in devs:
        if \"GPU\" in d:
            print(f\"[INFO] Using Intel GPU: {d}\")
            return d
    print(\"[INFO] Using CPU\")
    return \"CPU\"

def make_filename(topic, prompt):
    date_str = datetime.now().strftime('%Y%m%d_%H%M%S')
    src = topic if topic else prompt[:30]
    safe = re.sub(r'[^\\w]', '_', src.strip())[:30].strip('_')
    return f\"{date_str}_{safe}.png\"

def generate(prompt, topic='', steps=9, width=512, height=512, seed=42, output_path=None):
    state = get_state()
    if not state:
        print(\"[ERROR] state.json not found — run setup.py\")
        sys.exit(1)

    imagegen_dir = Path(state['IMAGE_GEN_DIR'])
    model_dir    = imagegen_dir / 'Z-Image-Turbo-int4-ov'
    out_dir      = imagegen_dir / 'outputs'
    out_dir.mkdir(parents=True, exist_ok=True)

    required = ['transformer', 'vae_decoder', 'text_encoder']
    missing  = [r for r in required if not (model_dir / r).exists()]
    if missing:
        print(f\"[ERROR] Model incomplete: {missing} — run download_model.py\")
        sys.exit(1)

    device = get_device()
    print(f\"[INFO] Loading model: {model_dir}\")

    import torch
    from optimum.intel import OVZImagePipeline
    pipe = OVZImagePipeline.from_pretrained(str(model_dir), device=device)
    print(\"[INFO] Model loaded\")

    gen = torch.Generator('cpu').manual_seed(seed) if seed >= 0 else None
    print(f\"[INFO] Inference: steps={steps}, {width}x{height}, seed={seed}\")
    image = pipe(
        prompt=prompt, height=height, width=width,
        num_inference_steps=steps, guidance_scale=0.0, generator=gen
    ).images[0]

    if output_path is None:
        output_path = str(out_dir / make_filename(topic, prompt))
    image.save(output_path)
    print(f\"[SUCCESS] {output_path}\")
    try:
        subprocess.Popen(['explorer', output_path])
        print(\"[INFO] Opened in default viewer\")
    except Exception as e:
        print(f\"[WARN] Could not open image: {e}\")
    return output_path

if __name__ == \"__main__\":
    sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace', line_buffering=True)
    sys.stderr = io.TextIOWrapper(sys.stderr.buffer, encoding='utf-8', errors='replace', line_buffering=True)
    try:
        p = argparse.ArgumentParser()
        p.add_argument(\"--prompt\", required=True)
        p.add_argument(\"--topic\",  default='')
        p.add_argument(\"--steps\",  type=int, default=9)
        p.add_argument(\"--width\",  type=int, default=512)
        p.add_argument(\"--height\", type=int, default=512)
        p.add_argument(\"--seed\",   type=int, default=42)
        p.add_argument(\"--output\", default=None)
        args = p.parse_args()
        print(generate(args.prompt, args.topic, args.steps, args.width, args.height, args.seed, args.output))
        sys.stdout.flush()
    except Exception as e:
        import traceback
        print(f\"[FATAL] {type(e).__name__}: {e}\", flush=True)
        traceback.print_exc()
        sys.exit(1)
\'\'\'
    script.write_text(code.strip(), encoding='utf-8')
    print('SCRIPT_UPDATE=DONE')

print(f'EXISTS={script.exists()}')
"

Step 3: generate image and send preview

🎨 Step 3/3: running inference…

Run these two commands separately:

$env:PYTHONUTF8 = "1"

& "<VENV_PY>" "<IMAGE_GEN_DIR>\generate_image.py" --prompt "EXPANDED_PROMPT" --topic "TOPIC" --steps 9 --seed 42

Pass: stdout contains [SUCCESS]. Record OUTPUT_PATH from the [SUCCESS] line.

Send preview via message tool:

action: "send"  filePath: "OUTPUT_PATH"  message: "✅ TOPIC"

Final announcement:

✅ Done! Path: <OUTPUT_PATH>
📝 Prompt: {expanded prompt}
⚙️ steps=9, 512×512, seed=42 | device: {CPU/GPU}

Parameters

guidance_scale is fixed at 0.0 and not exposed as a parameter.

Troubleshooting