image-gen

Name: image-gen
Author: MoizIbnYousaf

27stars5forks

How to install image-gen?

moizibnyousaf/marketing-cli/image-gen

$npx -y skills add MoizIbnYousaf/marketing-cli --skill image-gen

Installs into the current project.

Summary

Generate images using the brand's visual identity and Gemini API. Reads brand/creative-kit.md for visual style, crafts narrative prompts, and produces images via Nano Banana Pro (gemini-3-pro-image-preview). Supports on-brand and freestyle modes. Use when the user needs a blog he

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SKILL.md

1	# /image-gen — On-Brand Image Generation
2
3	Describe what you need. Get an image that looks like your brand made it.
4
5	This skill reads your visual brand identity from `brand/creative-kit.md`, crafts a narrative prompt that bakes in your style constraints, and generates the image via Gemini API. No brand style defined yet? It still works — just at a lower enhancement level. Run `/visual-style` first for the best results.
6
7	---
8
9	## On Activation
10
11	1. Check `GEMINI_API_KEY` environment variable.
12	- If missing: "Image generation requires a Gemini API key. Set GEMINI_API_KEY in your environment. Get one at ai.google.dev."
13	- Do not proceed without it.
14
15	2. Read brand files in priority order:
16	- `brand/creative-kit.md` — look for `## Visual Brand Style` section
17	- `brand/voice-profile.md` — personality informs image tone
18	- `brand/positioning.md` — angles inform visual metaphors
19	- `brand/landscape.md` — Claims Blacklist (don't generate imagery that visually implies blacklisted claims)
20
21	3. Determine enhancement level:
22
23	\| Level \| Context available \| Image quality \|
24	\|-------\|------------------\|---------------\|
25	\| L0 \| No brand files \| Good generic images — uses discovery questions + prompt craft \|
26	\| L1 \| voice-profile.md \| Personality-aligned — playful brand gets warm/bright images \|
27	\| L2 \| + creative-kit.md colors/typography \| Color-constrained — palette woven into prompts \|
28	\| L3 \| + Visual Brand Style section \| Fully on-brand — style anchors, lighting, mood, composition all applied \|
29
30	---
31
32	## Phase 1: Discovery
33
34	Use AskUserQuestion. Ask one at a time. Skip questions the user already answered in their request.
35
36	Question 1: Purpose
37	"What's this image for?"
38	- Blog header / article illustration
39	- Social media post (which platform?)
40	- Product shot / marketing asset
41	- Hero image / landing page
42	- Presentation / slide deck
43	- Something else (describe it)
44
45	This determines aspect ratio:
46
47	\| Use case \| Default ratio \| Resolution \|
48	\|----------\|---------------\|------------\|
49	\| Blog header \| 16:9 \| 2K \|
50	\| Social square \| 1:1 \| 2K \|
51	\| Social story \| 9:16 \| 2K \|
52	\| Hero / banner \| 21:9 \| 2K \|
53	\| Product shot \| 4:3 \| 4K \|
54	\| Thumbnail \| 16:9 \| 1K \|
55
56	Question 2: Feeling
57	"What should someone feel when they see this?"
58	(Free text — this drives the prompt's emotional anchor)
59
60	Question 3: Style override (only if L3 brand style exists)
61	"Use your on-brand style, or something different?"
62	- On-brand (default) — applies Visual Brand Style from creative-kit.md
63	- Different — describe the style you want instead
64
65	If user picks "different," their description overrides the brand style for this image only.
66
67	Skip discovery when: The user's request is specific enough. "Generate a 16:9 blog header showing a glowing terminal on a dark background, warm rim lighting" — don't ask what they want, they just told you.
68
69	---
70
71	## Phase 2: Prompt Crafting (Nano Banana Prompt Engineering)
72
73	You are an expert Nano Banana prompt engineer. Your job is to turn the user's brief into a single, high-quality prompt for Nano Banana 2 (or Pro), a "thinking" image model used for professional asset production.
74
75	Core principle: brief a senior art director, don't list keywords. Write natural language in full sentences. Never use "tag soup" like "dog, park, 4k, realistic."
76
77	### The 10 Rules
78
79	1. General style. Be specific and descriptive about subject, setting, composition, camera/viewpoint, lighting, mood, materials, and textures. Full sentences, not comma lists.
80
81	2. Context and purpose. Always encode the purpose and audience (YouTube thumbnail, app icon, hero banner, tweet graphic, 4K wallpaper). Let purpose guide style, polish level, and framing.
82
83	3. Text and infographics. If text must appear, put it clearly in quotes in the prompt. Ask for legible, clean typography and specify style (b

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image-gen

27stars5forks

View on GitHub

How to install image-gen?

moizibnyousaf/marketing-cli/image-gen

$npx -y skills add MoizIbnYousaf/marketing-cli --skill image-gen

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# /image-gen — On-Brand Image Generation
2
3	Describe what you need. Get an image that looks like your brand made it.
4
5	This skill reads your visual brand identity from `brand/creative-kit.md`, crafts a narrative prompt that bakes in your style constraints, and generates the image via Gemini API. No brand style defined yet? It still works — just at a lower enhancement level. Run `/visual-style` first for the best results.
6
7	---
8
9	## On Activation
10
11	1. Check `GEMINI_API_KEY` environment variable.
12	- If missing: "Image generation requires a Gemini API key. Set GEMINI_API_KEY in your environment. Get one at ai.google.dev."
13	- Do not proceed without it.
14
15	2. Read brand files in priority order:
16	- `brand/creative-kit.md` — look for `## Visual Brand Style` section
17	- `brand/voice-profile.md` — personality informs image tone
18	- `brand/positioning.md` — angles inform visual metaphors
19	- `brand/landscape.md` — Claims Blacklist (don't generate imagery that visually implies blacklisted claims)
20
21	3. Determine enhancement level:
22
23	\| Level \| Context available \| Image quality \|
24	\|-------\|------------------\|---------------\|
25	\| L0 \| No brand files \| Good generic images — uses discovery questions + prompt craft \|
26	\| L1 \| voice-profile.md \| Personality-aligned — playful brand gets warm/bright images \|
27	\| L2 \| + creative-kit.md colors/typography \| Color-constrained — palette woven into prompts \|
28	\| L3 \| + Visual Brand Style section \| Fully on-brand — style anchors, lighting, mood, composition all applied \|
29
30	---
31
32	## Phase 1: Discovery
33
34	Use AskUserQuestion. Ask one at a time. Skip questions the user already answered in their request.
35
36	Question 1: Purpose
37	"What's this image for?"
38	- Blog header / article illustration
39	- Social media post (which platform?)
40	- Product shot / marketing asset
41	- Hero image / landing page
42	- Presentation / slide deck
43	- Something else (describe it)
44
45	This determines aspect ratio:
46
47	\| Use case \| Default ratio \| Resolution \|
48	\|----------\|---------------\|------------\|
49	\| Blog header \| 16:9 \| 2K \|
50	\| Social square \| 1:1 \| 2K \|
51	\| Social story \| 9:16 \| 2K \|
52	\| Hero / banner \| 21:9 \| 2K \|
53	\| Product shot \| 4:3 \| 4K \|
54	\| Thumbnail \| 16:9 \| 1K \|
55
56	Question 2: Feeling
57	"What should someone feel when they see this?"
58	(Free text — this drives the prompt's emotional anchor)
59
60	Question 3: Style override (only if L3 brand style exists)
61	"Use your on-brand style, or something different?"
62	- On-brand (default) — applies Visual Brand Style from creative-kit.md
63	- Different — describe the style you want instead
64
65	If user picks "different," their description overrides the brand style for this image only.
66
67	Skip discovery when: The user's request is specific enough. "Generate a 16:9 blog header showing a glowing terminal on a dark background, warm rim lighting" — don't ask what they want, they just told you.
68
69	---
70
71	## Phase 2: Prompt Crafting (Nano Banana Prompt Engineering)
72
73	You are an expert Nano Banana prompt engineer. Your job is to turn the user's brief into a single, high-quality prompt for Nano Banana 2 (or Pro), a "thinking" image model used for professional asset production.
74
75	Core principle: brief a senior art director, don't list keywords. Write natural language in full sentences. Never use "tag soup" like "dog, park, 4k, realistic."
76
77	### The 10 Rules
78
79	1. General style. Be specific and descriptive about subject, setting, composition, camera/viewpoint, lighting, mood, materials, and textures. Full sentences, not comma lists.
80
81	2. Context and purpose. Always encode the purpose and audience (YouTube thumbnail, app icon, hero banner, tweet graphic, 4K wallpaper). Let purpose guide style, polish level, and framing.
82
83	3. Text and infographics. If text must appear, put it clearly in quotes in the prompt. Ask for legible, clean typography and specify style (b

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6 picks

Type