Build prompts for FLUX image generation and editing, with guidance on model selection, lighting, composition, text, and precise colors. It also covers structured scene descriptions using JSON and editing with multiple reference images.
Comprehensive guide for BFL FLUX image generation models. Covers prompting, T2I, I2I, structured JSON, hex colors, typography, multi-reference editing, and model-specific best practices for FLUX.2 and FLUX.1 families.
Run score Not tested
See how to installThe skill helps you build prompts that communicate your intentions when generating or editing images with FLUX. It explains how to organize the subject, action, visual style, background, lighting, and camera settings into natural sentences. It also covers choosing between FLUX.2 and FLUX.1 models, describing complex scenes with JSON, rendering text, specifying colors with color codes, and editing with multiple reference images.
Use it when you know what image you want but are unsure what to describe or in what order. It also helps you write prompts for visuals containing text or specified brand colors. The guidance provides a basis for choosing a model according to priorities such as speed, image quality, and text rendering.
FLUX does not support negative prompts, so describe the elements you want in positive terms. API endpoints, checking processing status, and webhook implementation are covered by the separate bfl-api skill.
This overview was written by AI (OpenAI Codex) from the public SKILL.md. Check the original below for the exact behavior.
AI checked the SKILL.md for operations that need care and for setup requirements. The score comes only from actually running the skill (hands-on test).
Not counted in the score. Rated by AI (OpenAI Codex) as of Oct 23, 2026. Treat it as a guide and read the original before installing.
Review the instructions the agent will receive before you install.
Use this skill when generating prompts for any BFL FLUX model to ensure optimal image quality and accurate prompt interpretation.
Extended reference:
AGENTS.mdin this directory is the long-form upstream FLUX guide (vendored from Black Forest Labs). It is supplementary reference material scoped to this skill only —SKILL.mdis the loadable entry point and the authority. It does not override or extend the repository-rootAGENTS.md/AGENT_GUIDE.md.
[Subject] + [Action/Pose] + [Style/Medium] + [Context/Setting] + [Lighting] + [Camera/Technical]
| Use Case | Recommended Model | Notes |
|---|---|---|
| Fastest generation | FLUX.2 [klein] | 4B or 9B, sub-second |
| Highest quality | FLUX.2 [max] | Best detail, grounding search |
| Production balanced | FLUX.2 [pro] | Quality + speed |
| Typography/text | FLUX.2 [flex] | Best text rendering |
| Local/development | FLUX.2 [dev] | Open weights |
| Image editing | FLUX.2 [pro/max] | Pass image URL directly to input_image |
| Inpainting | FLUX.1 Fill | Object removal/completion |
| Context editing | FLUX.1 Kontext | Older model, prefer FLUX.2 |
For API integration (endpoints, polling, webhooks), see the bfl-api skill.
Read individual rule files for detailed guidance:
A weathered fisherman in his 70s with deep wrinkles and a salt-and-pepper beard,
wearing a navy cable-knit sweater, standing at the helm of his wooden boat.
Golden hour sunlight from the left creates dramatic rim lighting on his profile.
Shot on Hasselblad with 85mm lens at f/2.8, shallow depth of field with harbor
lights creating soft bokeh in the background. Kodak Portra 400 color science.
No reviews yet. Tell others what you thought.
No login needed. Share how it worked for you, ask a question, or note where it did not run.
No comments yet. Be the first to write one.
Create 3D objects from text or images, choose catalog assets for repeated scenery, and inspect the results in Blender. The workflow checks geometry, materials, scale, and ground contact while recording asset sources and generation costs.
Generate background music and songs with lyrics using ACE-Step 1.5, with controls for duration, tempo, and musical key. You can also restyle reference audio and separate vocals or individual instruments from mixed tracks.
Build voice assistants and conversational characters with ElevenLabs. Configure voices, language models, and external tools, then connect conversations to a website widget or use Twilio integration for outbound phone calls.
Create AI video clips from text or reference images, choosing among providers to match the task and budget. Supports vertical social videos, product photo animation, and conversational editing of existing clips with Gemini Omni Flash.
Generate video clips from text descriptions or reference images through multiple API services. Compare available providers by cost and task needs, choose aspect ratios, track generation progress, and refine existing clips through conversational editing with Gemini Omni.
Generate and edit images and videos through Atlas Cloud using one API key across multiple model families. Choose supported models for each task, download the results, and retain details about the model, inputs, and estimated cost.