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nova-canvas

Generate images using Amazon Nova Canvas via AWS Bedrock. Supports multiple AWS auth methods: environment variables, credentials file, named profiles, IAM instance roles, SSO, or direct access keys. Use when the user asks to generate, create, draw, or produce an image, picture, illustration, photo, artwork, poster, icon, banner, or any visual content. Triggers: "generate an image", "draw me", "create a picture", "make an illustration", "画一张", "帮我画", "生成图片", "做一张图", "AI绘图". Requires AWS Bedrock access with Nova Canvas model enabled. NOT for: editing existing images, generating video, or HTML/CSS canvas rendering.

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安装命令

npx skills add https://github.com/wujiaming88/skills --skill nova-canvas

复制此命令并粘贴到 Claude Code 中以安装该技能

来源

wujiaming88/skills

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更新时间2026年3月25日 11:26

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nova-canvas

description

Nova Canvas

Generate images via Amazon Nova Canvas on AWS Bedrock.

AWS Auth Methods

Method	How to Use
Bearer token	`AWS_BEARER_TOKEN_BEDROCK` env var or `--bearer-token`
Environment variables	Set `AWS_ACCESS_KEY_ID` + `AWS_SECRET_ACCESS_KEY`
Credentials file	Configure `~/.aws/credentials`
Named profile	`--profile my-profile` or `AWS_PROFILE` env var
Direct keys	`--access-key AKIA... --secret-key ...`
Temporary credentials	Add `--session-token` with direct keys
IAM instance role	Auto-detected on EC2/ECS/Lambda
AWS SSO	Run `aws sso login` first

Auto-detection order: direct keys → profile → bearer token → env vars → credentials file → instance role → SSO.

Quick Start

python3 {baseDir}/scripts/generate.py "your prompt" -o output.png
python3 {baseDir}/scripts/generate.py "your prompt" -o output.png --profile work
python3 {baseDir}/scripts/generate.py "your prompt" -o output.png --access-key AKIA... --secret-key ...

Parameters

Flag	Default	Description
`prompt`	—	Text description of the image
`-o, --output`	output.png	Output file path
`-W, --width`	1024	Width 512-4096, divisible by 64
`-H, --height`	1024	Height 512-4096, divisible by 64
`-n, --count`	1	Number of images (1-5)
`-q, --quality`	standard	`standard` or `premium`
`-s, --seed`	random	Seed for reproducibility
`--negative`	—	Negative prompt (what to avoid)
`--cfg`	8.0	CFG scale 1.1-10.0
`--region`	us-east-1	AWS region
`--profile`	—	AWS named profile
`--access-key`	—	AWS Access Key ID
`--secret-key`	—	AWS Secret Access Key
`--session-token`	—	AWS Session Token
`--bearer-token`	—	Bearer token (overrides env)

Workflow

Craft a detailed English prompt (Nova Canvas performs best in English).
Choose size: square 1024×1024, landscape 1280×768, portrait 768×1280.
Run generate.py with timeout=120.
Send resulting image to user via message tool.

Prompt Tips

Detailed English prompts yield best results.
Specify style: "oil painting", "watercolor", "3D render", "photograph", "anime".
Use --negative "blurry, low quality, text, watermark" to exclude unwanted elements.

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Behavioral guidelines to reduce common LLM coding pitfalls, derived from Andrej Karpathy's observations. Apply these four principles when writing, editing, or reviewing code — especially for non-trivial changes. Triggers on coding tasks, code reviews, refactoring, bug fixes, feature implementation, or when the user asks for careful/disciplined coding behavior.

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wujiaming88/skills

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wujiaming88/skills

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来源

wujiaming88

wujiaming88/skills

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安装命令

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在 Manus 中运行

适用职业SOC

软件开发工程师计算机与数学类职业15-1252L4

name

nova-canvas

description

Nova Canvas

Generate images via Amazon Nova Canvas on AWS Bedrock.

AWS Auth Methods

Method	How to Use
Bearer token	`AWS_BEARER_TOKEN_BEDROCK` env var or `--bearer-token`
Environment variables	Set `AWS_ACCESS_KEY_ID` + `AWS_SECRET_ACCESS_KEY`
Credentials file	Configure `~/.aws/credentials`
Named profile	`--profile my-profile` or `AWS_PROFILE` env var
Direct keys	`--access-key AKIA... --secret-key ...`
Temporary credentials	Add `--session-token` with direct keys
IAM instance role	Auto-detected on EC2/ECS/Lambda
AWS SSO	Run `aws sso login` first

Auto-detection order: direct keys → profile → bearer token → env vars → credentials file → instance role → SSO.

Quick Start

python3 {baseDir}/scripts/generate.py "your prompt" -o output.png
python3 {baseDir}/scripts/generate.py "your prompt" -o output.png --profile work
python3 {baseDir}/scripts/generate.py "your prompt" -o output.png --access-key AKIA... --secret-key ...

Parameters

Flag	Default	Description
`prompt`	—	Text description of the image
`-o, --output`	output.png	Output file path
`-W, --width`	1024	Width 512-4096, divisible by 64
`-H, --height`	1024	Height 512-4096, divisible by 64
`-n, --count`	1	Number of images (1-5)
`-q, --quality`	standard	`standard` or `premium`
`-s, --seed`	random	Seed for reproducibility
`--negative`	—	Negative prompt (what to avoid)
`--cfg`	8.0	CFG scale 1.1-10.0
`--region`	us-east-1	AWS region
`--profile`	—	AWS named profile
`--access-key`	—	AWS Access Key ID
`--secret-key`	—	AWS Secret Access Key
`--session-token`	—	AWS Session Token
`--bearer-token`	—	Bearer token (overrides env)

Workflow

Craft a detailed English prompt (Nova Canvas performs best in English).
Choose size: square 1024×1024, landscape 1280×768, portrait 768×1280.
Run generate.py with timeout=120.
Send resulting image to user via message tool.

Prompt Tips

Detailed English prompts yield best results.
Specify style: "oil painting", "watercolor", "3D render", "photograph", "anime".
Use --negative "blurry, low quality, text, watermark" to exclude unwanted elements.