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Image outpainting on RunComfy via the `runcomfy` CLI — extend a still beyond its original canvas, fill in what the camera didn't capture, change aspect ratio (square → 16:9, portrait → landscape) while preserving the original content. Routes across Nano Banana 2 Edit (default, spatial-language driven), GPT Image 2 Edit (multi-ref with reference-style matching), FLUX Kontext Pro (single-shot maximum-preservation), and the brand edit endpoints (Seedream / Dreamina / Qwen / FLUX 2). Picks the right
Passed 22 of 22 test cases with the skill, and 7 of 22 without it.
and 22 more in the full report
15 fixed7 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 15 test cases the skill fixed. Same model, same prompt, with and without the skill.
Where does runcomfy login store its authentication credentials on disk and with what permission bits?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies token storage file path as ~/.config/runcomfy/token.json | Missed | Passed |
| Specifies token file permission mode as 0600 | Passed | Passed |
The instructions your model reads when the skill loads.
Extend a still beyond its original canvas — uncrop, change aspect ratio, fill in what the camera didn't capture. This skill routes across the identity-preserving edit endpoints in the RunComfy catalog, picking the right one for prose-driven extension, reference-style matching, or brand-locked continuation.
runcomfy.com · best-image-editing-models · CLI docs
# 1. Install (see runcomfy-cli skill for details)
npm i -g @runcomfy/cli # or: npx -y @runcomfy/cli --version
# 2. Sign in
runcomfy login # or in CI: export RUNCOMFY_TOKEN=<token>
# 3. Outpaint
runcomfy run google/nano-banana-2/edit \
--input '{"prompt": "...extend canvas...", "image_urls": ["..."]}' \
--output-dir ./out
CLI deep dive: runcomfy-cli skill.
Listed by suitability for outpainting workflows.
Nano Banana 2 Edit — google/nano-banana-2/edit (default for prompt-shaped outpaint)
Identity-preserving edit; honors spatial language ("extend the canvas to the left and right by ~30%", "add sky above the building"). The result is a wider canvas with the original content preserved. Pick for: aspect-ratio change (square → 16:9), uncrop a portrait, extend a landscape photo with matching environment. Avoid for: pixel-precise extension matching texture seams — use a ComfyUI outpainting workflow.
GPT Image 2 Edit — openai/gpt-image-2/edit
Up to 10 reference images, layout-precise instruction following. Useful when outpainting needs to match a reference style or includes layout repositioning. Pick for: composite outpaint (extend canvas + paste in element from another image), layout repositioning during the canvas change. Avoid for: simple outpaint without external references.
FLUX Kontext Pro — blackforestlabs/flux-1-kontext/pro/edit
test cases passed, vs 7 / 22 without
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