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name: agnes-free-image description: Generate free images with Agnes Image 2.1 Flash through the Agnes API, including text-to-image, image-to-image, high-density visual prompts, URL results, and local downloads. Use when the user asks for 免费图片, 免费的图片模型, free image API, Agnes image, Agnes Image 2.1 Flash, free AI image generation, image-to-image via Agnes, or wants a free image model Agent skill.

Agnes Free Image

Use this skill to generate or transform images with agnes-image-2.1-flash.

Credential Rule

Read the API key from the environment. Do not hardcode keys in prompts, scripts, skill files, commits, or shell history.

Preferred variable:

export AGNES_API_KEY="..."

The helper also accepts AGNES_TOKEN as a fallback.

Quick Start

Text-to-image:

python3 scripts/agnes_image.py generate \
  --prompt "A luminous floating city above a misty canyon at sunrise, cinematic realism" \
  --size 1024x768 \
  --output-dir ./outputs/agnes-free-image

Image-to-image with a public image URL:

python3 scripts/agnes_image.py generate \
  --prompt "Transform the scene into a rain-soaked cyberpunk night while preserving the composition" \
  --image-url "https://example.com/input.png" \
  --size 1024x768 \
  --output-dir ./outputs/agnes-free-image

Validate the request shape without calling the API:

python3 scripts/agnes_image.py generate \
  --prompt "A detailed AI workflow dashboard poster, clean editorial style" \
  --size 1024x1024 \
  --dry-run

Prompt Pattern

Use this structure for text-to-image:

[Subject] + [Scene / Environment] + [Style] + [Lighting] + [Composition] + [Quality Requirements]

For image-to-image, say both what should change and what should remain unchanged.

Workflow

1. Decide whether the request is text-to-image or image-to-image.
2. Turn vague visual requests into a concrete prompt with subject, environment, style, lighting, composition, and detail level.
3. Use scripts/agnes_image.py generate. Prefer --dry-run first for complex prompts or reference images.
4. Save returned image URLs locally with --output-dir when the response includes downloadable URLs.
5. Read references/api.md when the raw response shape or advanced parameters matter.

Notes

• Endpoint: POST https://apihub.agnes-ai.com/v1/images/generations
• Model: agnes-image-2.1-flash
• Default size in the helper is 1024x768.
• For image-to-image, input images must be URL-accessible and are sent under extra_body.image.
• The helper asks for URL responses with extra_body.response_format: "url".

Reference

Read references/api.md when you need request fields, response handling, or prompt examples from the source docs.