wan-scail-replacement SKILL.md skillA
wan-scail-replacement from artokun/comfyui-mcp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add artokun/comfyui-mcp/wan-scail-replacement@git:20260825.ea35391Pins git:20260825.ea35391 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- artokun/comfyui-mcp
- Path
plugin/skills/wan-scail-replacement/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260825.ea35391, committed Aug 25, 2026
- First version recorded
- Aug 1, 2026
- Size
- 4,750 bytes
- Repository stars
- 896
- License
- MIT
SCAIL-2 in-video character replacement on WAN 2.1. WanSCAILToVideo + SCAIL2ColoredMask + SAM3, the reference-image framing→scale rule, and the tuning/compositing pitfalls.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# SCAIL-2 In-Video Character Replacement (WAN 2.1) SCAIL-2 (zai-org, on WAN 2.1 14B) replaces the person in a driving video with a character you supply as a reference image, end-to-end, with no pose maps, and with multi-character support. It is the successor to WAN Animate / motion transfer for the "swap the subject, keep the motion" job. The official ComfyUI template is `video_wan21_scail2_character_replacement_int8`, built around `WanSCAILToVideo` (+ `SCAIL2ColoredMask`) with a SAM3 mask driving where the character goes. This skill documents the non-obvious behaviours that cost a full multi-minute render to discover. It is not a from-scratch graph. Start from the official template and apply the guidance below. ## The one rule that costs a re-render: reference framing controls SCALE **In `replacement_mode: true`, the reference image's FRAMING controls the output character's SIZE as well as its appearance.** The SAM3 mask controls where the character is placed; the reference image controls how large. Measured on a 720x1280 driving clip where the subject occupied ~30% of frame height (subject bbox 363 px): | Reference framing | Person bbox in output | vs driving subject | …
Read the whole file at its exact version.
How to install
mdr add artokun/comfyui-mcp/wan-scail-replacement@sha256:bf0c31db5b274c4dThe line at the top of this page pins the label git:20260825.ea35391, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_g3d5zbj65cchk7sz)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 1, 2026 and Aug 25, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260825.ea35391 latest | 2026-08-25 | ea35391 | 4,750 B | A | view · diff |
| git:20260819.9fe9ea3 | 2026-08-19 | 9fe9ea3 | 4,801 B | A | view · diff |
| git:20260801.189784d | 2026-08-01 | 189784d | 4,618 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4750 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
artokun/comfyui-mcp · 896 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_g3d5zbj65cchk7sz GET https://markdownregistry.com/api/v1/resolve?ref=artokun/comfyui-mcp/wan-scail-replacement GET https://markdownregistry.com/api/v1/blob/bf0c31db5b274c4d21f90238a206e763888839752eda1aa58e4505f670efb969
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.