maliang-image（马良图片）

Maliang Image — AI Image Generation & Editing

Provider: Maliang API (nano.djdog.ai) Model: Google Gemini (image generation & editing) Pricing: Returned dynamically by the API. Free credit on first use.

What it does

Generate images from text descriptions or edit existing images using AI.

• No images provided → text-to-image generation
• Images provided → AI image editing / inpainting (1–10 reference images, user-provided only)

Security & Data Handling

• API Key: Auto-provisioned on first use and stored locally at ~/.config/maliang/. One account per machine (identified by hostname), persisted across all sessions. You can revoke it at any time.
• Images: Only images explicitly provided by the user are sent to the API. The skill never reads files unless the user specifies the file path. All uploads go over HTTPS.
• No data collection: The API processes your request and returns results. Images are not stored permanently on the server.

Inputs needed

API Key Management (Persistent, One Account Per Machine)

The API key and short code are stored in persistent files so they survive across sessions. NEVER provision a new key if one already exists and is valid.

Step 0 — Load or provision API key

# 1. Check persistent key file first
CONFIG_DIR="$HOME/.config/maliang"
KEY_FILE="$CONFIG_DIR/api_key"
CODE_FILE="$CONFIG_DIR/short_code"

MALIANG_API_KEY=""
MALIANG_SHORT_CODE=""

if [ -f "$KEY_FILE" ]; then
  MALIANG_API_KEY=$(cat "$KEY_FILE")
fi
if [ -f "$CODE_FILE" ]; then
  MALIANG_SHORT_CODE=$(cat "$CODE_FILE")
fi

# 2. If no key exists, provision with machine_id for idempotency
if [ -z "$MALIANG_API_KEY" ]; then
  mkdir -p "$CONFIG_DIR"
  MACHINE_ID=$(hostname)
  PROVISION_RESULT=$(curl -s -X POST "https://nano.djdog.ai/api/v1/provision" \
    -H "Content-Type: application/json" \
    -d "{\"machine_id\": \"$MACHINE_ID\"}")
  MALIANG_API_KEY=$(echo "$PROVISION_RESULT" | python3 -c "import sys,json; print(json.load(sys.stdin)['data']['api_key'])")
  MALIANG_SHORT_CODE=$(echo "$PROVISION_RESULT" | python3 -c "import sys,json; print(json.load(sys.stdin)['data']['short_code'])")
  echo "$MALIANG_API_KEY" > "$KEY_FILE"
  echo "$MALIANG_SHORT_CODE" > "$CODE_FILE"
  chmod 600 "$KEY_FILE"
  # Show the user their short code and balance from PROVISION_RESULT
fi

IMPORTANT: Always read from ~/.config/maliang/api_key first. Only call /api/v1/provision if the file does not exist. The machine_id (hostname) ensures that even if the key file is lost, the same machine reconnects to the same account without getting extra credit.

Verify existing key (401 recovery)

If the key file exists but API returns 401, the key may be invalid. Re-provision with machine_id — this will reconnect to the existing account (no new credit):

# If 401 error, re-provision with machine_id
rm -f "$KEY_FILE" "$CODE_FILE"
MACHINE_ID=$(hostname)
PROVISION_RESULT=$(curl -s -X POST "https://nano.djdog.ai/api/v1/provision" \
  -H "Content-Type: application/json" \
  -d "{\"machine_id\": \"$MACHINE_ID\"}")
MALIANG_API_KEY=$(echo "$PROVISION_RESULT" | python3 -c "import sys,json; print(json.load(sys.stdin)['data']['api_key'])")
MALIANG_SHORT_CODE=$(echo "$PROVISION_RESULT" | python3 -c "import sys,json; print(json.load(sys.stdin)['data']['short_code'])")
echo "$MALIANG_API_KEY" > "$KEY_FILE"
echo "$MALIANG_SHORT_CODE" > "$CODE_FILE"
chmod 600 "$KEY_FILE"

Balance Check

After each task, check remaining balance:

curl -s "https://nano.djdog.ai/api/v1/balance" \
  -H "Authorization: Bearer ${MALIANG_API_KEY}"

Response includes short_code for recharge reference. If balance is low, remind the user:

Your balance is $X.XX. To recharge, visit: https://nano.djdog.ai/recharge/{short_code}

View status

To show the user their account status at any time:

echo "Key prefix: ${MALIANG_API_KEY:0:11}..."
echo "Short code: $MALIANG_SHORT_CODE"
# Then call the balance endpoint above to show current balance

Workflow

Step 1 — Determine mode

• If the user provides one or more images (file paths, URLs, or pasted base64): edit mode
• Otherwise: generate mode

Step 2 — Prepare images (edit mode only)

For each image the user provides:

1. If it is a local file path, read and base64-encode it.
2. If it is a URL, download it first, then base64-encode.
3. Strip any data:image/...;base64, prefix — the API accepts raw base64.
4. Verify each image is under 10 MB after decoding.
5. Maximum 10 images total.

Step 3 — Submit task

Generate mode — call:

curl -s -X POST "https://nano.djdog.ai/api/v1/generate" \
  -H "Authorization: Bearer ${MALIANG_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "<user prompt>",
    "aspect_ratio": "<ratio, default 1:1>"
  }'

Edit mode — call:

curl -s -X POST "https://nano.djdog.ai/api/v1/edit" \
  -H "Authorization: Bearer ${MALIANG_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "<user editing instruction>",
    "image": "<base64 string or array of base64 strings>",
    "aspect_ratio": "<ratio, optional>"
  }'

Both return:

{
  "success": true,
  "data": {
    "task_id": "...",
    "status": "pending",
    "created_at": "..."
  }
}

Extract task_id from the response.

Step 4 — Poll for result

Poll every 3 seconds, up to 120 seconds max:

curl -s "https://nano.djdog.ai/api/v1/tasks/${TASK_ID}" \
  -H "Authorization: Bearer ${MALIANG_API_KEY}"

Response data.status values:

Step 5 — Deliver result

When status is completed:

• If image_url is present: show the URL to the user (preferred).
• If only image_base64 is present: save to a local file and show the path.

Output format

Image generated successfully!
URL: https://...
Aspect ratio: 1:1
Prompt: "<original prompt>"

Guardrails

• NEVER provision a new key if ~/.config/maliang/api_key already exists and is valid. One machine = one account.
• Never fabricate task IDs or image URLs. Only use values from API responses.
• Never poll more than 40 times (120 seconds). If not completed, tell the user it is still processing and provide the task ID for manual checking.
• Do not send images larger than 10 MB to the edit endpoint.
• Do not send more than 10 images to the edit endpoint.
• If the API returns 402 (INSUFFICIENT_BALANCE), tell the user their balance is low and they need to recharge.
• Prompt max length is 4000 characters. If the user's prompt is longer, ask them to shorten it.

Failure handling

Examples

Text-to-image:

User: Generate a cute orange cat sitting on a windowsill at sunset, anime style
→ Load key from ~/.config/maliang/api_key (or provision if first use)
→ POST /api/v1/generate with prompt → poll for result → return image URL

Image editing:

User: Change the background of this photo to a beach scene [attaches photo]
→ Base64-encode the photo
→ POST /api/v1/edit with prompt + image, poll for result, return image URL

Multi-image editing:

User: Combine these character designs into one group portrait [attaches 3 images]
→ Base64-encode all 3 images
→ POST /api/v1/edit with prompt + image array, poll for result, return image URL