wan-2-7
agentspace-so/runcomfy-agent-skills
Generate text-to-video with Wan 2.7's audio lip-sync and multi-reference motion control via RunComfy CLI
What is wan-2-7?
Wan 2.7 is Wan-AI's flagship text-to-video model, accessible through the RunComfy Model API. This skill lets coding agents invoke it via the local RunComfy CLI. Key differentiators include audio-driven lip-sync (supply your own WAV/MP3 track), multi-reference motion conditioning (up to 5 image/video/voice refs), and physics-aware smooth transitions. Outputs up to 1080p at 16:9, 9:16, 1:1, 4:3, or 3:4, with durations from 2–15 seconds. The skill also documents when to route to sibling models like HappyHorse 1.0, Seedance 2.0, Kling, or LTX 2 instead.
- Generates text-to-video clips using Wan 2.7 via `runcomfy run wan-ai/wan-2-7/text-to-video`
- Supports audio-driven lip-sync by accepting a WAV/MP3 URL (3–30s, ≤15MB) via `audio_url`
- Allows multi-reference motion conditioning with up to 5 combined image/video/voice references
- Supports prompt expansion (on by default) or literal verbatim prompts when disabled
- Accepts negative prompts to exclude specific visual artifacts or issues
- Outputs video at 720p or 1080p across 5 aspect ratios, from 2 to 15 seconds duration
How to install wan-2-7
npx skills add https://github.com/agentspace-so/runcomfy-agent-skills --skill wan-2-7- Node.js environment to run `npx skills add`
- RunComfy CLI installed globally: `npm i -g @runcomfy/cli`
- RunComfy account with login via `runcomfy login` (browser device-code flow)
- For CI/containers: set `RUNCOMFY_TOKEN=<token>` environment variable instead of login
- Audio files for lip-sync must be WAV or MP3, 3–30 seconds, and ≤15MB
How to use wan-2-7
- 1.Install the skill: `npx skills add https://github.com/agentspace-so/runcomfy-agent-skills --skill wan-2-7`
- 2.Authenticate with RunComfy: run `runcomfy login` or set `RUNCOMFY_TOKEN` in your environment
- 3.Run a basic text-to-video generation: `runcomfy run wan-ai/wan-2-7/text-to-video --input '{"prompt": "your prompt"}' --output-dir /absolute/path`
- 4.For lip-sync, add `audio_url`, `duration`, and `aspect_ratio` to the input JSON
- 5.To disable auto prompt expansion for literal control, set `"enable_prompt_expansion": false` in the input
- 6.Add `negative_prompt` with concrete issues to avoid (e.g. "no subtitles, no flicker")
- 7.Reuse `seed` for consistent variants; change it for genuine variety
- 8.Check exit codes if the command fails: 65 = bad input schema, 75 = retryable timeout/rate-limit, 77 = auth error
Use cases
- Lip-synced ad videos using a custom voiceover audio track
- Multi-language dub variants using the same prompt with different `audio_url` per language
- Product showcase videos with smooth camera push-in and studio lighting
- Vertical (9:16) short-form platform content
- Iterating on video variants using seed control for consistency
- Developers building AI video generation pipelines with coding agents
- Marketers producing lip-synced or dubbed video ads programmatically
- Content creators generating short-form vertical video at scale
- Engineers integrating RunComfy's Model API into automated workflows
- Teams needing reproducible video outputs via seed-controlled generation
wan-2-7 FAQ
Wan 2.7 is the right choice for audio-driven lip-sync (via `audio_url`) and multi-reference motion control. HappyHorse 1.0 currently ranks #1 in blind-vote quality. Seedance 2.0 Pro handles multi-modal cinematic with in-pass voice generation. Kling is better for editing existing footage. LTX 2 is fastest for iteration.
WAV or MP3 only, between 3 and 30 seconds long, and no larger than 15MB. Files outside these constraints will be rejected. Match the audio length to your clip duration.
No. The maximum duration is 15 seconds per call. For longer narratives, make multiple calls and stitch the clips together.
Set the `RUNCOMFY_TOKEN` environment variable to your API token. This bypasses the browser device-code login flow entirely.
No. The CLI passes the prompt as a JSON string directly to the Model API over HTTPS without shell-expanding it. There is no shell injection surface from prompt content.
Full instructions (SKILL.md)
Source of truth, from agentspace-so/runcomfy-agent-skills.
name: wan-2-7
displayName: "Wan 2.7 — Pro Pack on RunComfy"
description: >
Generate text-to-video with Wan 2.7 (Wan-AI's flagship motion model)
on RunComfy. Documents Wan 2.7's strengths (multi-reference conditioning,
audio-driven lip-sync via audio_url, smoother transitions, prompt
expansion), the duration / resolution / aspect-ratio schema, and
when to route to HappyHorse 1.0 / Seedance 2.0 / Kling / LTX 2
instead. Calls runcomfy run wan-ai/wan-2-7/text-to-video through
the local RunComfy CLI. Triggers on "wan", "wan 2.7", "wan-2-7",
"wan video", or any explicit ask to generate video with this model.
homepage: https://www.runcomfy.com
license: MIT
Wan 2.7 — Pro Pack on RunComfy
runcomfy.com · Text-to-video · GitHub
Wan-AI's Wan 2.7 — flagship video model with multi-reference conditioning and audio-driven lip-sync — hosted on the RunComfy Model API.
npx skills add agentspace-so/runcomfy-skills --skill wan-2-7 -g
When to pick this model (vs siblings)
| You want | Use |
|---|---|
| Lip-sync video to an audio track you supply | Wan 2.7 (audio_url) |
| Multi-reference fine motion control | Wan 2.7 |
| Smooth transitions, accurate motion physics | Wan 2.7 |
| Currently-#1 blind-vote video model | HappyHorse 1.0 |
| Multi-modal cinematic with image+video+audio refs + in-pass voice generation | Seedance 2.0 Pro |
| Cinematic motion editing on existing footage | Kling Video O1 |
| Ultra-fast iteration | LTX 2 |
If the user said "Wan" / "Wan 2.7" / "wan-ai" / "alibaba video" explicitly, route here regardless.
Prerequisites
- RunComfy CLI —
npm i -g @runcomfy/cli - RunComfy account —
runcomfy loginopens a browser device-code flow. - CI / containers — set
RUNCOMFY_TOKEN=<token>instead ofruncomfy login.
Endpoints + input schema
wan-ai/wan-2-7/text-to-video
| Field | Type | Required | Default | Notes |
|---|---|---|---|---|
prompt | string | yes | — | Up to ~5000 chars / ~1500 tokens. |
audio_url | string | no | — | WAV/MP3, 3–30s, ≤15MB. Drives lip-sync. Omit → background music auto-generated. |
aspect_ratio | enum | no | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4. |
resolution | enum | no | 1080p | 720p or 1080p. |
duration | enum | no | 5 | 2–15 (whole seconds). |
negative_prompt | string | no | — | Up to 500 chars. Concrete issues to avoid. |
enable_prompt_expansion | bool | no | true | Auto-rewrites short prompts. Disable for literal control. |
seed | int | no | — | 0..2^31-1. Reuse for variants. |
How to invoke
Default (5s 1080p 16:9, prompt-expanded):
runcomfy run wan-ai/wan-2-7/text-to-video \
--input '{"prompt": "<user prompt>"}' \
--output-dir <absolute/path>
Audio-driven lip-sync (your own track):
runcomfy run wan-ai/wan-2-7/text-to-video \
--input '{
"prompt": "Medium close-up of the spokesperson, warm key light, locked tripod, slight breathing motion.",
"audio_url": "https://.../voiceover.mp3",
"duration": 12,
"aspect_ratio": "9:16"
}' \
--output-dir <absolute/path>
Literal control (no auto-expansion):
runcomfy run wan-ai/wan-2-7/text-to-video \
--input '{
"prompt": "<exactly what you want, verbatim>",
"enable_prompt_expansion": false,
"negative_prompt": "no subtitles, no flicker, no distorted hands"
}' \
--output-dir <absolute/path>
Prompting — what actually works
Camera + motion in plain English. "Slow dolly in", "locked tripod, low angle", "handheld follow", "crane move from above". Front-load the shot.
One primary action per clip. Don't pile up multiple competing actions. Pick the beat: "she turns, then smiles" not "she turns AND smiles AND a bus passes AND...".
Use negative_prompt for concrete issues. Good: "no subtitles, no watermark, no flicker". Bad (vague): "no bad lighting".
Prompt expansion is on by default. Short prompts get auto-rewritten by the model. For terse / literal prompts (e.g. brand-strict ad copy), disable with enable_prompt_expansion: false.
Audio specs matter. audio_url must be 3–30s, ≤15MB, WAV/MP3. Out-of-range files reject. Match audio length to clip duration.
Iterate seeds. Reuse the same seed when you want consistent output across variants of the same prompt. Change seed for genuine variety.
Anti-patterns:
- Static-frame descriptions → motion will be vague.
- Vague negatives ("no bad colors") → ignored.
- Audio outside the 3–30s / 15MB / WAV-MP3 spec → rejected.
- Prompts > 5000 chars / 1500 tokens → degraded output.
Where it shines
| Use case | Why Wan 2.7 |
|---|---|
| Lip-synced ads with custom voiceover | audio_url accepts your track |
| Multi-language dub variants | Same prompt, different audio_url per language |
| Multi-reference motion control | Up to 5 reference media (image / video / voice) |
| Smooth transitions + motion physics | Strong physics-aware motion priors |
| Negative-prompted clean output | Targeted issue exclusion |
Sample prompts (verified to produce strong results)
Page example (product showcase):
Cinematic medium shot of a product on a marble surface, soft studio
lighting, slow subtle camera push-in, shallow depth of field, premium
commercial look, crisp 1080p detail
Lip-synced spokesperson (with audio_url):
Medium close-up of a confident spokesperson in a softly-lit recording
booth, leaning slightly toward the camera, locked tripod, shallow depth
of field, warm key light from camera-left.
Vertical platform-native:
9:16 vertical short. A barista pulls a single espresso shot, steam
rising into morning sun, rich crema slowly forming. Close-up handheld,
shallow DOF, warm cafe ambience.
Limitations
- Duration cap 15s. For longer narratives, stitch multiple calls.
- No native 4K — 1080p ceiling.
- Aspect ratios — only the 5 documented values.
- Audio specs — 3–30s, ≤15MB, WAV/MP3 only.
- Reference media cap 5 (image + video + voice combined).
- For in-pass voice generation (no separate audio track), use Seedance 2.0 Pro — Wan accepts audio rather than generating it.
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 invokes runcomfy run wan-ai/wan-2-7/text-to-video with a JSON body matching the schema. The CLI POSTs to https://model-api.runcomfy.net/v1/models/wan-ai/wan-2-7/text-to-video, polls the request, fetches the result, and downloads any .runcomfy.net/.runcomfy.com URL into --output-dir. Ctrl-C cancels the remote request before exit.
Security & Privacy
- Token storage:
runcomfy loginwrites the API token to~/.config/runcomfy/token.jsonwith mode 0600 (owner-only read/write). SetRUNCOMFY_TOKENenv var to bypass the file entirely in CI / containers. - Input boundary: the user prompt is passed as a JSON string to the CLI via
--input. The CLI does NOT shell-expand the prompt; it transmits the JSON body directly to the Model API over HTTPS. No shell injection surface from prompt content. - Third-party content: image / mask / video URLs you pass are fetched by the RunComfy model server, not by the CLI on your machine. Treat external URLs as untrusted; image-based prompt injection is a known risk for any image-edit / video-edit model.
- Outbound endpoints: only
model-api.runcomfy.net(request submission) and*.runcomfy.net/*.runcomfy.com(download whitelist for generated outputs). No telemetry, no callbacks. - Generated-file size cap: the CLI aborts any single download > 2 GiB to prevent disk-fill from a malicious or runaway model output.
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