gpt-image-1-5

Generate and edit images using OpenAI's GPT Image 1.5 model. Use when the user asks to generate, create, edit, modify, change, alter, or update images. Also use when user references an existing image file and asks to modify it in any way (e.g., "modify this image", "change the background", "replace

By intellectronica · 609 installs

npx skills add intellectronica/agent-skills --skill gpt-image-1-5

Source repository · Upstream listing

GPT Image 1.5 Image Generation & Editing Generate new images or edit existing ones using OpenAI's GPT Image 1.5 model. Generation : Uses the Responses API with image generation tool Editing : Uses the Image API for reliable mask based inpainting Usage Run the script using absolute path (do NOT cd to skill directory first): Generate new image: Edit existing image (without mask full image edit): Edit existing image (with mask precise inpainting): Important: Always run from the user's current working directory so images are saved where the user is working, not in the skill directory. Parameters Quality Options low Fastest generation, lower quality medium (default) Balanced quality and speed high Best quality, slower generation Map user requests: No mention of quality medium "quick", "fast", "draft" low "high quality", "best", "detailed", "high res" high Size Options 1024x1024 (default) Square format 1024x1536 Portrait format 1536x1024 Landscape format auto Let the model decide based on prompt Map user requests: No mention of size 1024x1024 "square" 1024x1024 "portrait", "vertical", "tall" 1024x1536 "landscape", "horizontal", "wide" 1536x1024 Background Options (generation only) auto (default) Model decides transparent Transparent background (PNG/WebP output) opaque Solid background API Key The script checks for API key in this order: 1. api key argument (use if user provided key in chat) 2. OPENAI API KEY environment variable If neither is available, the script exits with an error message. Filename Generation Generate filenames with the pattern: yyyy mm dd hh mm ss name.png Format: {timestamp} {descriptive name}.png Timestamp: Current date/time in format yyyy mm dd hh mm ss (24 hour format) Name: Descriptive lowercase text with hyphens Keep the descriptive part concise (1 5 words typically) Use context from user's prompt or conversation If unclear, use random identifier (e.g., x9k2 , a7b3 ) Examples: Prompt "A serene Japanese garden" 2025 12 17 14 23 05 japanese garden.png Prompt "sunset over mountains" 2025 12 17 15 30 12 sunset mountains.png Prompt "create an image of a robot" 2025 12 17 16 45 33 robot.png Unclear context 2025 12 17 17 12 48 x9k2.png Image Editing Both editing modes use the Image API (images.edit endpoint) with gpt image 1.5 for reliable results. Without Mask (Full Image Edit) When the user wants to modify an existing image without specifying exact regions: 1. Use input image parameter with the path to the image 2. The prompt should contain editing instructions (e.g., "make the sky more dramatic", "change to cartoon style") 3. A fully transparent mask is auto generated, allowing the model to edit the entire image With Mask (Precise Inpainting) When the user wants to edit specific regions: 1. Use input image parameter with the path to the image 2. Use mask parameter with a PNG mask file 3. The mask should have transparent areas (alpha=0) where edits should occur 4. The prompt describes what should appear in the masked region Common editing tasks: add/remove elements, change style, adjust colors, replace backgrounds, etc. Prompt Handling For generation: Pass user's image description as is to prompt . Only rework if clearly insufficient. For editing: Pass editing instructions in prompt (e.g., "add a rainbow in the sky", "make it look like a watercolor painting") Preserve user's creative intent in both cases. Output Saves PNG to current directory (or specified path if filename includes directory) Script outputs the full path to the generated image Do not read the image back just inform the user of the saved path Examples Generate new image: Generate with transparent background: Edit existing image (full image): Edit with mask (inpainting):