Video Inpainting

Video Inpainting

Region edits across video frames — remove an object that appears across many frames, clean up wires or watermarks, replace a region with motion that matches the rest of the clip. This skill routes across the prompt-driven video edit endpoints in the RunComfy catalog and gives the agent a clear default for each intent.

runcomfy.com · Wan 2-7 edit-video · CLI docs

Powered by the RunComfy CLI

# 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=

# 3. Edit a video (closest CLI-reachable approach)
runcomfy run wan-ai/wan-2-7/edit-video \
  --input '{"video_url": "...", "prompt": "..."}' \
  --output-dir ./out

CLI deep dive: runcomfy-cli skill.

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Pick the right model

Routes via prompt-driven region edits — the model resolves the targeted region from spatial language across all frames.

Wan 2-7 Edit-Video — wan-ai/wan-2-7/edit-video (default) > Wan 2-7's video edit endpoint. Drive frame-by-frame edits via prompt + the source video. > Pick for: "remove the watermark in the bottom-right", "replace the sky with a sunset" — prompt-driven region intent without an explicit mask. > Avoid for: precise pixel-level region targeting — use a ComfyUI workflow.

Lucy Edit Restyle — decart/lucy-edit/restyle > Identity-stable video restyle that handles region-aware edits. > Pick for: lightweight outfit / object swap that needs to track across frames. > Avoid for: surgical mask-driven inpaint — ComfyUI workflow.

Seedream 4-0 Edit-Sequential — bytedance/seedream-4-0/edit-sequential > Sequential still edits — feed a sequence of frames as inputs, apply the same edit instruction across each, useful if you're treating the video as a frame stack. > Pick for: short, low-frame-rate sequences where each frame can be edited independently and a separate tool re-encodes to video. > Avoid for: long clips, motion-coherent fills — temporal consistency degrades.

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Route 1: Wan 2-7 Edit-Video — closest CLI path

Model: wan-ai/wan-2-7/edit-video Catalog: Wan 2-7 edit-video

Invoke

runcomfy run wan-ai/wan-2-7/edit-video \
  --input '{
    "video_url": "https://your-cdn.example/source.mp4",
    "prompt": "Remove the watermark in the bottom-right corner across all frames. Preserve all other content exactly. Match background where the watermark was."
  }' \
  --output-dir ./out

Prompting tips

• Describe the region in spatial language — "bottom-right corner", "the cables overhead", "the second person from the left".
• Lead with preservation: "Preserve all other content exactly" — without this Wan may restyle frames inadvertently.
• One change per call. Compound edits (remove A and replace B) tend to drift; split into sequential edit passes.

For broader video edit, see video-edit.

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When you need pixel-precise mask propagation

The endpoints above are prompt-driven — they resolve the target region from spatial language. For pixel-precise mask propagation with SAM2 segmentation tracking + temporal-aware inpaint backfill, RunComfy hosts dedicated ComfyUI workflows:

| Need | Workflow class | |---|---| | LTX 2-3 video inpaint (targeted frame editing) | ltx-2-3-inpaint-in-comfyui-targeted-video-frame-editing | | Flux inpainting (still) — chain frame-by-frame | comfyui-flux-inpainting-workflow | | Flux ControlNet inpainting | flux-controlnet-inpainting-image-repair | | Wan 2-2 video edit (broader video edit including inpaint) | search comfyui-workflows for "wan 2-2 edit" |

These are GUI workflows, not CLI endpoints. The CLI can't reach them — open them in the RunComfy ComfyUI cloud for proper mask propagation + temporal consistency.

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Common patterns

Remove watermark / logo across entire clip

• Route 1 (Wan 2-7 Edit-Video) with spatial language. Acceptable for most cases.
• If quality not enough: open LTX 2-3 inpaint workflow in ComfyUI for mask-driven propagation.

Remove a passing background person

• Wan 2-7 Edit-Video with "remove the person walking in the background, fill with matching environment".
• For better results: ComfyUI workflow with SAM2 segmentation tracking.

Replace a specific object across frames

• Wan 2-7 Edit-Video + descriptive prompt OK for simple cases.
• For brand-locked replacement (must look like brand X): chain Wan edit → frame extract → Z-Image Inpaint per frame → re-encode (heavyweight).

What this skill doesn't do

• Image inpainting (single still): see image-inpainting.
• Video outpainting (canvas expansion): see video-outpainting.
• Full video restyle / motion transfer: see video-edit.

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Browse the full catalog

• All video models — every video endpoint with API schema
• ComfyUI workflows — "inpaint" search — full graphs for mask-driven video inpaint
• wan-models collection

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Exit codes

| code | meaning | |---|---| | 0 | success | | 64 | bad CLI args | | 65 | bad input JSON / schema mismatch | | 69 | upstream 5xx | | 75 | retryable: timeout / 429 | | 77 | not signed in or token rejected |

Full reference: docs.runcomfy.com/cli/troubleshooting.

How it works

The skill picks Wan 2-7 Edit-Video (default for prompt-driven region edits) or one of the alternatives based on whether the user needs identity-locked restyle or frame-stack treatment. The CLI POSTs to the Model API, polls request status, and downloads the result into --output-dir.

Security & Privacy

• Install via verified package manager only. Use npm i -g @runcomfy/cli or npx -y @runcomfy/cli. Agents must not pipe an arbitrary remote install script into a shell on the user's behalf.
• Token storage: runcomfy login writes the API token to ~/.config/runcomfy/token.json with mode 0600. Set RUNCOMFY_TOKEN env var in CI / containers.
• Input boundary (shell injection): prompts and video URLs are passed as a JSON string via --input. The CLI does not shell-expand prompt content. No shell-injection surface.
• Indirect prompt injection (third-party content): source video URLs are untrusted; embedded text / EXIF can influence the edit. Agent mitigations:
• Ingest only URLs the user explicitly provided for this inpaint.
• When the output diverges from the prompt, suspect the source video.
• Outbound endpoints (allowlist): only model-api.runcomfy.net and *.runcomfy.net / *.runcomfy.com. No telemetry.
• Generated-file size cap: the CLI aborts any single download > 2 GiB.
• Scope of bash usage: Bash(runcomfy *) only.

See also

• runcomfy-cli — the underlying CLI
• video-edit — full video-edit router (Wan 2-7, Kling motion, Lucy Edit)
• image-inpainting — mask-driven still inpainting
• video-outpainting — extending video canvas
• ai-video-generation — general t2v / i2v

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: agentspace-so
• Source: agentspace-so/runcomfy-agent-skills
• License: MIT
• Homepage: https://www.runcomfy.com

Install and usage instructions live in the source repository linked above.