video-extend

Name: video-extend
Author: prime-skills

31stars9forks

How to install video-extend?

prime-skills/runcomfy-agent-skills/video-extend

$npx -y skills add prime-skills/runcomfy-agent-skills --skill video-extend

Installs into the current project.

Summary

Extend or continue an existing video clip on RunComfy via the runcomfy CLI. Routes to Google Veo 3-1's extend-video and fast/extend-video endpoints — pick the source video plus a prompt describing what should happen next, and the model produces a clip that continues the ori

Files · 1

View on GitHub

SKILL.md

1	# Video Extend
2
3	Continue an existing video clip past its per-call duration cap, or chain a narrative shot-by-shot from a single seed. This skill routes to Google Veo 3-1's `extend-video` endpoints and ships the documented prompting patterns + the exact `runcomfy run` invoke.
4
5	[runcomfy.com](https://www.runcomfy.com/?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [Veo 3-1 extend-video](https://www.runcomfy.com/models/google-deepmind/veo-3-1/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [CLI docs](https://docs.runcomfy.com/cli/introduction?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend)
6
7	## Powered by the RunComfy CLI
8
9	```bash
10	# 1. Install (see runcomfy-cli skill for details)
11	npm i -g @runcomfy/cli # or: npx -y @runcomfy/cli --version
12
13	# 2. Sign in
14	runcomfy login # or in CI: export RUNCOMFY_TOKEN=<token>
15
16	# 3. Extend
17	runcomfy run google-deepmind/veo-3-1/extend-video \
18	--input '{"video_url": "https://...", "prompt": "..."}' \
19	--output-dir ./out
20	```
21
22	CLI deep dive: [`runcomfy-cli`](https://www.skills.sh/agentspace-so/runcomfy-agent-skills/runcomfy-cli) skill.
23
24	---
25
26	## Pick the right endpoint
27
28	Listed newest first. Both endpoints are Google Veo 3-1; pick by quality/latency trade-off.
29
30	Veo 3-1 Extend — `google-deepmind/veo-3-1/extend-video` (default)
31	> Continues an existing Veo clip with consistent motion, lighting, identity, and physics.
32	> Pick for: hero-quality extends, final-delivery cuts, chained narrative shots that need to look like one continuous take.
33	> Avoid for: cost-sensitive iteration — drop to Veo 3-1 Fast Extend.
34
35	Veo 3-1 Fast Extend — [`google-deepmind/veo-3-1/fast/extend-video`](https://www.runcomfy.com/models/google-deepmind/veo-3-1/fast/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend)
36	> Faster Veo 3-1 extend at lower per-call cost.
37	> Pick for: iteration on extend compositions, multi-shot drafts.
38	> Avoid for: final delivery — use full Veo 3-1 Extend.
39
40	The agent picks one and supplies the source video URL + a continuation prompt.
41
42	---
43
44	## Route: Veo 3-1 Extend
45
46	Model: `google-deepmind/veo-3-1/extend-video` (or `/fast/extend-video`)
47	Catalog: [Veo 3-1 extend](https://www.runcomfy.com/models/google-deepmind/veo-3-1/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [Veo 3-1 fast extend](https://www.runcomfy.com/models/google-deepmind/veo-3-1/fast/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [`veo-3` collection](https://www.runcomfy.com/models/collections/veo-3?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend)
48
49	### Invoke
50
51	```bash
52	runcomfy run google-deepmind/veo-3-1/extend-video \
53	--input '{
54	"video_url": "https://your-cdn.example/source-clip.mp4",
55	"prompt": "The camera continues pushing in slowly. The character looks down at the object, then turns toward the window. Soft daylight, no other motion in the background."
56	}' \
57	--output-dir ./out
58	```
59
60	### Prompting tips
61
62	- The source video provides identity, lighting, framing, and physics. Your prompt describes only what happens next — don't re-describe the scene.
63	- Anchor the camera explicitly: "camera continues pushing in", "camera stays static", "slow dolly out". Without an anchor the camera tends to drift.
64	- One main beat per extend. "Character turns and walks toward camera" is one beat. "Character turns, walks toward camera, then sits down" is three beats — split into separate extend calls.
65	- Chain consecutive extends by feeding the output of one extend call as the input to the next. Identity drift accumulates per generation, so keep individual extends short (3–5 s) for long chains.
66
67	---
68
69	## Common patterns
70
71	### Single clip → 16s feature
72	- Start with an 8s Veo 3-1 i2v or t2v clip
73	- Run `extend-video` once → 16s total. Same prompt rhythm for the second 8s.
74
75	### Story beats (shot by shot)
76	- Beat 1: t2v generates establishing shot
77	- Beat 2: feed output to `extend-video` with prompt "camera cuts to medium close-up; character speaks l

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video-extend

31stars9forks

View on GitHub

How to install video-extend?

prime-skills/runcomfy-agent-skills/video-extend

$npx -y skills add prime-skills/runcomfy-agent-skills --skill video-extend

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Video Extend
2
3	Continue an existing video clip past its per-call duration cap, or chain a narrative shot-by-shot from a single seed. This skill routes to Google Veo 3-1's `extend-video` endpoints and ships the documented prompting patterns + the exact `runcomfy run` invoke.
4
5	[runcomfy.com](https://www.runcomfy.com/?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [Veo 3-1 extend-video](https://www.runcomfy.com/models/google-deepmind/veo-3-1/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [CLI docs](https://docs.runcomfy.com/cli/introduction?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend)
6
7	## Powered by the RunComfy CLI
8
9	```bash
10	# 1. Install (see runcomfy-cli skill for details)
11	npm i -g @runcomfy/cli # or: npx -y @runcomfy/cli --version
12
13	# 2. Sign in
14	runcomfy login # or in CI: export RUNCOMFY_TOKEN=<token>
15
16	# 3. Extend
17	runcomfy run google-deepmind/veo-3-1/extend-video \
18	--input '{"video_url": "https://...", "prompt": "..."}' \
19	--output-dir ./out
20	```
21
22	CLI deep dive: [`runcomfy-cli`](https://www.skills.sh/agentspace-so/runcomfy-agent-skills/runcomfy-cli) skill.
23
24	---
25
26	## Pick the right endpoint
27
28	Listed newest first. Both endpoints are Google Veo 3-1; pick by quality/latency trade-off.
29
30	Veo 3-1 Extend — `google-deepmind/veo-3-1/extend-video` (default)
31	> Continues an existing Veo clip with consistent motion, lighting, identity, and physics.
32	> Pick for: hero-quality extends, final-delivery cuts, chained narrative shots that need to look like one continuous take.
33	> Avoid for: cost-sensitive iteration — drop to Veo 3-1 Fast Extend.
34
35	Veo 3-1 Fast Extend — [`google-deepmind/veo-3-1/fast/extend-video`](https://www.runcomfy.com/models/google-deepmind/veo-3-1/fast/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend)
36	> Faster Veo 3-1 extend at lower per-call cost.
37	> Pick for: iteration on extend compositions, multi-shot drafts.
38	> Avoid for: final delivery — use full Veo 3-1 Extend.
39
40	The agent picks one and supplies the source video URL + a continuation prompt.
41
42	---
43
44	## Route: Veo 3-1 Extend
45
46	Model: `google-deepmind/veo-3-1/extend-video` (or `/fast/extend-video`)
47	Catalog: [Veo 3-1 extend](https://www.runcomfy.com/models/google-deepmind/veo-3-1/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [Veo 3-1 fast extend](https://www.runcomfy.com/models/google-deepmind/veo-3-1/fast/extend-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend) · [`veo-3` collection](https://www.runcomfy.com/models/collections/veo-3?utm_source=skills.sh&utm_medium=skill&utm_campaign=video-extend)
48
49	### Invoke
50
51	```bash
52	runcomfy run google-deepmind/veo-3-1/extend-video \
53	--input '{
54	"video_url": "https://your-cdn.example/source-clip.mp4",
55	"prompt": "The camera continues pushing in slowly. The character looks down at the object, then turns toward the window. Soft daylight, no other motion in the background."
56	}' \
57	--output-dir ./out
58	```
59
60	### Prompting tips
61
62	- The source video provides identity, lighting, framing, and physics. Your prompt describes only what happens next — don't re-describe the scene.
63	- Anchor the camera explicitly: "camera continues pushing in", "camera stays static", "slow dolly out". Without an anchor the camera tends to drift.
64	- One main beat per extend. "Character turns and walks toward camera" is one beat. "Character turns, walks toward camera, then sits down" is three beats — split into separate extend calls.
65	- Chain consecutive extends by feeding the output of one extend call as the input to the next. Identity drift accumulates per generation, so keep individual extends short (3–5 s) for long chains.
66
67	---
68
69	## Common patterns
70
71	### Single clip → 16s feature
72	- Start with an 8s Veo 3-1 i2v or t2v clip
73	- Run `extend-video` once → 16s total. Same prompt rhythm for the second 8s.
74
75	### Story beats (shot by shot)
76	- Beat 1: t2v generates establishing shot
77	- Beat 2: feed output to `extend-video` with prompt "camera cuts to medium close-up; character speaks l

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Type