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image-edit

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Edit an existing image with deterministic pixel operations via image_edit — rotate, flip, crop (free/ratio/circle), resize, compress/format-convert, adjust brightness/saturation/contrast, sharpen, blur, mosaic, rounded corners, negate, overlay, and image watermark. Use when the user asks to 裁剪/旋转/翻转/缩放/压缩/打码/马赛克/加水印/叠图/圆角/调亮/调暗/锐化/模糊 an existing image, convert format, or hit a file-size limit. For AI re-creation, restyle, or adding text, use image-creation instead.

skills/codex-plugin-aitoearn/skills/aitoearn/references/image-edit/SKILL.md

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Nov 11, 2026
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# Image Edit

Edit an existing image with `image_edit` — a local, deterministic pixel pipeline. No AI model and no credits for `image_edit` itself; the auxiliary `probe_image_metadata` call is billed per use. The result is pixel-exact and repeatable.

This is **fine-grained image editing**: unlike AI re-creation (`image-creation`), every operation is pixel-exact. Precision is the premise — free-crop regions, mosaic areas, watermark/overlay positions, and drawn shapes are source-image pixel coordinates, so always work from the real dimensions returned by `probe_image_metadata`, never from guesses.

## Tool

- `image_edit`: one call per image. Pass `url` (source image) plus `operations`, an ordered array of 1–20 operations applied in sequence.
- `probe_image_metadata` (auxiliary): read the source image's real width/height, format, and size with `info_type=metadata` (default). When transparency matters, use `info_type=alpha`; it also returns width/height/format, so do not call metadata first unless size is also required. Each probe is billed; do not call it again for the same URL.
- Output: `url` (edited image), `width`, `height`, `format`, `sizeBytes`.
- `compress` must be the **last** operation (it is the export step).
- Operations that introduce transparency (circle crop, rounded corners) output PNG with alpha.
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