Agent skill

Atlas Cloud

Generate or edit images and videos through the Atlas Cloud gateway.

AGPL-3.0Auto-check passedMedia & Creative

Install Atlas Cloud

skills CLI

$ npx skills add calesthio/OpenMontage --skill atlas-cloud -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install calesthio/OpenMontage atlas-cloud --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/calesthio/OpenMontage.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/atlas-cloud .claude/skills/atlas-cloud && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "atlas-cloud" agent skill from https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud into .claude/skills/atlas-cloud/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "atlas-cloud", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add calesthio/OpenMontage --skill atlas-cloud -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install calesthio/OpenMontage atlas-cloud --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/calesthio/OpenMontage.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/atlas-cloud .agents/skills/atlas-cloud && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "atlas-cloud" agent skill from https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud into .agents/skills/atlas-cloud/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "atlas-cloud", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add calesthio/OpenMontage --skill atlas-cloud -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install calesthio/OpenMontage atlas-cloud --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/calesthio/OpenMontage.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/atlas-cloud .cursor/skills/atlas-cloud && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "atlas-cloud" agent skill from https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud into .cursor/skills/atlas-cloud/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "atlas-cloud", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/calesthio/OpenMontage.git --path .agents/skills/atlas-cloud

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add calesthio/OpenMontage --skill atlas-cloud -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install calesthio/OpenMontage atlas-cloud --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/calesthio/OpenMontage.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/atlas-cloud .gemini/skills/atlas-cloud && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "atlas-cloud" agent skill from https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud into .gemini/skills/atlas-cloud/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "atlas-cloud", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install calesthio/OpenMontage atlas-cloud

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add calesthio/OpenMontage --skill atlas-cloud -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/calesthio/OpenMontage.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/atlas-cloud .github/skills/atlas-cloud && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "atlas-cloud" agent skill from https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud into .github/skills/atlas-cloud/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "atlas-cloud", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add calesthio/OpenMontage --skill atlas-cloud -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install calesthio/OpenMontage atlas-cloud --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/calesthio/OpenMontage.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/atlas-cloud .opencode/skills/atlas-cloud && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "atlas-cloud" agent skill from https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/atlas-cloud into .opencode/skills/atlas-cloud/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "atlas-cloud", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: atlas-cloud
GitHub stars: 66k
Token cost: ~1.2k tokens
SKILL.md length: 443 words
Files: 1
Skills in repo: 41
Repo updated: Oct 3, 2026
First seen: Oct 7, 2026
Licence: AGPL-3.0

At a glance

Generate or edit images and videos through the Atlas Cloud gateway.

Works in 5 steps: Read tool.get_info()["model_catalog"];… → Select an exact model id and operation… → Announce the Atlas tool, provider, exact… → …
Atlas-hosted Seedance 2.5/2.0
SKILL.md covers Preflight every paid call, Video routes, Image routes and Result and failure contract
Needs ATLASCLOUD_API_KEY and ATLAS_CLOUD_API_KEY

What it does

Atlas Cloud is an agent skill from calesthio/OpenMontage. Generate or edit images and videos through the Atlas Cloud gateway. Use for Atlas-hosted Seedance 2.5/2.0, Gemini Omni Flash, MiniMax H3, Seedream 5.0, GPT Image 2, Nano Banana 2, or when one ATLASCLOUDAPIKEY should access multiple media model families.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Media & Creative, covering Image generation, AI video generation and Image editing. It works with Seedance, MiniMax and Google Gemini. The repository describes itself as: World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent skill and production-knowledge files. Turn your AI coding assistant… The licence is AGPL-3.0.

When your agent uses it

Atlas-hosted Seedance 2.5/2.0
Gemini Omni Flash
One ATLASCLOUDAPIKEY should access multiple media model families

Example prompts

“/atlas-cloud”

Requirements

Python 3
A credential in ATLASCLOUD_API_KEY
A credential in ATLAS_CLOUD_API_KEY

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Read tool.get_info()["model_catalog"]; do not infer availability from a
Select an exact model id and operation supported by that catalog.
Announce the Atlas tool, provider, exact model, request count, and estimated
Use local-path inputs when convenient. The tool uploads them through Atlas.
Save outputs inside the active projects// tree and inspect them.

What it can do on your machine

Read from SKILL.md and the folder at commit 9327439. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are python).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- ATLASCLOUD_API_KEY
- ATLAS_CLOUD_API_KEY
- ATLAS_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Atlas Cloud loads about 1.2k tokens when it runs. Until then it costs about 67 tokens; SKILL.md has 443 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~67
When it runs · the whole SKILL.md, loaded when a task matches: ~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from calesthio/OpenMontage at commit 9327439, republished under its AGPL-3.0 licence (© calesthio). 443 words, ~1,152 tokens.

Download SKILL.mdSave it as .claude/skills/atlas-cloud/SKILL.md (or your agent's skills folder).

name: atlas-cloud
description: Generate or edit images and videos through the Atlas Cloud gateway. Use for Atlas-hosted Seedance 2.5/2.0, Gemini Omni Flash, MiniMax H3, Seedream 5.0, GPT Image 2, Nano Banana 2, or when one ATLASCLOUD_API_KEY should access multiple media model families.

Atlas Cloud

Route complete productions through image_selector or video_selector. Call atlas_image or atlas_video directly when the user names Atlas Cloud or an exact Atlas model. Never substitute a direct vendor endpoint for an Atlas request.

Set ATLASCLOUD_API_KEY. The aliases ATLAS_CLOUD_API_KEY and ATLAS_API_KEY are accepted for compatibility.

Preflight every paid call

Read tool.get_info()["model_catalog"]; do not infer availability from a search collection or invent a task suffix.
Select an exact model id and operation supported by that catalog.
Announce the Atlas tool, provider, exact model, request count, and estimated cost before submitting.
Use local-path inputs when convenient. The tool uploads them through Atlas.
Save outputs inside the active projects/<project-id>/ tree and inspect them.

Video routes

Family	Operations	Exact route notes
Seedance 2.5	text, image, reference	`bytedance/seedance-2.5/{text,image,reference}-to-video`; image mode uses `image` plus optional `last_image`; reference mode accepts up to 30 images, 10 videos, and 10 audios (including audio-only); 4–30s; $0.134/s
Seedance 2.0	text, image, reference	`bytedance/seedance-2.0/{text,image,reference}-to-video`; 4–15s; $0.112/s
Gemini Omni Flash	text, image, reference, video edit	Standard routes use `google/gemini-omni-flash/...`; developer routes exist for text/image/reference only. Standard image mode uses one `image`; standard reference uses `images`; developer reference requires one `video_clips` object.
MiniMax H3	text, image, reference	`minimax/h3/{text,image,reference}-to-video`; image mode supports optional `end_image`; reference mode requires `refers` objects; 4–15s; 768P/2K; $0.10/s

Use canonical OpenMontage fields:

python

tool.execute({
    "prompt": "...",
    "model": "minimax/h3/reference-to-video",
    "operation": "reference_to_video",
    "duration": 10,
    "resolution": "2K",
    "reference_images": ["projects/demo/character.png"],
    "reference_audios": ["projects/demo/performance.wav"],
    "output_path": "projects/demo/h3.mp4",
})

For Gemini developer reference video, pass video_clips objects with url, start, and ends. For H3, callers may pass normalized reference_images, reference_videos, and reference_audios; the tool converts them to refers.

Do not silently clamp duration, resolution, or ratio. Invalid values must fail before billing with the supported choices in the error.

Show full SKILL.md (176 more words)Show less

Image routes

Family	Operations	Exact route notes
Seedream 5.0 Pro	generate, edit, decompose	`bytedance/seedream-v5.0-pro/text-to-image`, `/edit`, `/layer-decomposition`; edit accepts up to 10 images; sizes use `WIDTH*HEIGHT`
Seedream 5.0 Lite	edit	`bytedance/seedream-v5.0-lite/edit`; no live Lite text-to-image sibling is assumed; accepts up to 14 images
GPT Image 2	generate, edit	`openai/gpt-image-2/text-to-image`, `/edit`; sizes use `WIDTHxHEIGHT`; edit accepts up to 10 images
Nano Banana 2	generate, edit	`google/nano-banana-2/text-to-image`, `/edit`; uses aspect ratio plus 1k/2k/4k resolution; edit accepts up to 14 images

Set generation_mode to generate, edit, or decompose. Source images can be supplied as image_path, image_paths, image_url, or image_urls.

python

tool.execute({
    "prompt": "Replace the packaging with matte cobalt glass; preserve the logo",
    "model": "google/nano-banana-2/edit",
    "generation_mode": "edit",
    "image_paths": ["projects/campaign/source.png"],
    "resolution": "2k",
    "output_path": "projects/campaign/revised.png",
})

Result and failure contract

Both tools submit to Atlas, poll the returned prediction id, download every output, and return ToolResult provenance containing the provider, exact model, prediction id, submitted parameters, source URL, artifact paths, and estimated cost. A missing key, unsupported route, invalid enum, missing media input, failed prediction, timeout, or download failure must return a failed result without switching providers.

Confirm current pricing and schemas from the machine-readable model page (Accept: text/markdown) immediately before quoting or spending on a batch.

Files

Just SKILL.md in .agents/skills/atlas-cloud of calesthio/OpenMontage.

Open the folder on GitHubat commit 9327439

Compare with similar skills

Atlas Cloud next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Atlas Cloud compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Atlas Cloud this skillcalesthio/OpenMontage	66k	—	~1.2k	Automated safety check: Pass	AGPL-3.0	6 days ago
HiggsfieldOSideMedia/higgsfield-ai-prompt-skill	713	—	~9.1k	Automated safety check: Pass	MIT	13 days ago
Editorial Collage MotionPluviobyte/rnskill	1.6k	—	~1.2k	Automated safety check: Pass	Custom licence	19 days ago
Higgsfield ModelsOSideMedia/higgsfield-ai-prompt-skill	713	—	~7k	Automated safety check: Pass	MIT	13 days ago
Seedance Storyboard Generatorliangdabiao/Seedance2-Storyboard-Generator	2.6k	—	~2.2k	Automated safety check: Pass	None	19 days ago
Imagesmixs/visual-skills	494	—	~2.1k	Automated safety check: Pass	CC-BY-4.0	23 days ago

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Questions about Atlas Cloud

What does Atlas Cloud do?

Generate or edit images and videos through the Atlas Cloud gateway. Atlas Cloud is an agent skill from calesthio/OpenMontage. Generate or edit images and videos through the Atlas Cloud gateway.

When should I use Atlas Cloud?

Atlas Cloud fits situations like: atlas-hosted Seedance 2.5/2.0; gemini Omni Flash; one ATLASCLOUDAPIKEY should access multiple media model families.

How do I install Atlas Cloud in Claude Code?

Run `npx skills add calesthio/OpenMontage --skill atlas-cloud -a claude-code`. Or copy the skill folder (.agents/skills/atlas-cloud in calesthio/OpenMontage) into .claude/skills/atlas-cloud in your project. Claude Code loads it when a task matches its description.

How do I install Atlas Cloud in Codex?

Run `npx skills add calesthio/OpenMontage --skill atlas-cloud -a codex`. Or copy the skill folder (.agents/skills/atlas-cloud in calesthio/OpenMontage) into .agents/skills/atlas-cloud in your project. Codex loads it when a task matches its description.

Can I use Atlas Cloud in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add calesthio/OpenMontage --skill atlas-cloud -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/atlas-cloud, .gemini/skills/atlas-cloud, .github/skills/atlas-cloud and .opencode/skills/atlas-cloud in your project.

What does Atlas Cloud need to run?

Going by SKILL.md and its folder, Atlas Cloud needs credentials named ATLASCLOUD_API_KEY, ATLAS_CLOUD_API_KEY and ATLAS_API_KEY. Our summary lists: Python 3; A credential in ATLASCLOUD_API_KEY; A credential in ATLAS_CLOUD_API_KEY.

Does Atlas Cloud access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Atlas Cloud safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Atlas Cloud use?

Atlas Cloud is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Atlas Cloud use?

About 1.2k tokens (SKILL.md is roughly 4.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Atlas Cloud?

Skills that share tags, products or a category with Atlas Cloud: Higgsfield (OSideMedia/higgsfield-ai-prompt-skill, 713 stars), Editorial Collage Motion (Pluviobyte/rnskill, 1.6k stars), Higgsfield Models (OSideMedia/higgsfield-ai-prompt-skill, 713 stars) and Seedance Storyboard Generator (liangdabiao/Seedance2-Storyboard-Generator, 2.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Atlas Cloud?

calesthio (a GitHub user) maintains it in calesthio/OpenMontage, which has 65,930 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on October 3, 2026.

Source: calesthio/OpenMontage on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Atlas Cloud

Install Atlas Cloud

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Atlas Cloud

Preflight every paid call

Video routes

Image routes

Result and failure contract

Files

Compare with similar skills

Similar skills

Higgsfield

Editorial Collage Motion

Higgsfield Models

Seedance Storyboard Generator

Image

Video

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Questions about Atlas Cloud

Install Atlas Cloud

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Atlas Cloud

Preflight every paid call

Video routes

Image routes

Result and failure contract

Files

Compare with similar skills

Similar skills

More from calesthio/OpenMontage

Related

Questions about Atlas Cloud