Article Illustrations — Grav Hand-Drawn Style
Overview
Generate 16:9 landscape hand-drawn illustrations for articles, blog posts, and technical content. Each illustration captures one cognitive anchor point from an article and turns it into a clean, absurd, memorable whiteboard-sketch explanation.
The skill uses a recurring character IP called Grav: a small, round, always-floating figure with dot eyes and a thin antenna. Grav participates in the core action of every illustration — never just decoration.
Repository: vssinghh/article-illustrations
Use this skill when
- Writing articles, blog posts, or documentation that need inline illustrations
- Turning abstract concepts into concrete visual metaphors
- Establishing a consistent visual language across multiple articles
- Producing hand-drawn explanation sketches, not PPT infographics
Do not use this skill when
- You need polished, corporate-style PPT infographics or formal flowcharts
- You do not want a recurring character IP (Grav) featured in the illustrations
- You require animated, 3D, or realistic interface mockups instead of whiteboard sketches
Instructions
Step 1: Digest the Article
Read the article and identify cognitive anchor points — core judgments, turning points, input/output loops, before/after contrasts, and common pitfalls. Don't distribute illustrations evenly; prioritize moments that benefit from visual explanation.
Step 2: Plan a Shot List
For each illustration, define:
- Placement: After which section
- Theme: What this image is about
- Core Meaning: The one idea it conveys
- Structure Type: One of 8 composition patterns (Workflow, System Closeup, Before/After, Role States, Conceptual Metaphor, Layered Method, Map Route, Mini Comic)
- Grav's Action: What Grav is doing in the scene
- Annotation Labels: 3–5 short English labels
Step 3: Generate Images
Fill in the Prompt Template below with the shot-list details and generate one image per illustration. Use whatever image-generation capability is available in your environment — a built-in generate_image tool, an MCP image server, or simply by emitting the filled-in prompt for the user to paste into their own generator. Generate each image separately; never combine illustrations. Every image follows strict style rules:
- Pure white background, no textures
- Black hand-drawn line art with slight wobble
- Sparse red/orange/blue handwritten annotations
- Grav always floating (never touching surfaces)
- One core idea per image
- 40–60% canvas usage, 35%+ whitespace
Step 4: QA Check
Run each image against the QA Checklist below. If it fails any must-pass item or shows a failure signal, regenerate or request an edit.
Examples
Example 1: Plan illustrations for an article
Analyze this article and create a shot list of 5 illustrations.
Don't generate images yet — just plan which cognitive anchor points
deserve illustrations and what each image should convey.
<paste article>
Example 2: Generate illustrations directly
Generate 4 Grav-style illustrations for this article.
Requirements: 16:9 landscape, pure white background, black hand-drawn
line art, sparse red/orange/blue English annotations.
<paste article>
Example 3: Single concept illustration
Generate one 16:9 illustration for this concept:
"Trust isn't declared — it's built one piece of evidence at a time."
Grav must perform the core action. Keep labels sparse — aim for 3–5.
Example 4: Iterate on a result
This illustration is on the right track, but Grav feels like decoration.
Keep the core meaning but regenerate: make Grav the one actually
driving the structure.
Visual Style
| Element |
Rule |
| Background |
Pure white — no cream, texture, gradients, or shadows |
| Line art |
Black, hand-drawn, slightly wobbly, not mechanical |
| Whitespace |
Main subject 40–60% of canvas, 35%+ empty space |
| Annotations |
Handwritten English, 2–5 words each, max 5–8 per image |
| Color: Black |
Main line art, characters, structures, objects |
| Color: Red |
Key highlights, problems, warnings, results |
| Color: Orange |
Main flow, paths, arrows, direction |
| Color: Blue |
Supplementary notes, feedback, system state |
| Prohibited |
Green, purple, yellow, pink, gradients, drop shadows, 3D, realistic UI |
Character: Grav
- Small round body (pebble/potato shape)
- Two dot eyes (slightly asymmetric)
- One thin bent antenna with tiny circle tip
- Thin stick legs that dangle without touching surfaces
- Always hovering — visible gap between Grav and any surface
- Expression: calm, focused, deadpan
- Role: active participant in the system, never decoration
Best Practices
- ✅ Start with a shot list before generating images
- ✅ Invent a new metaphor for every illustration — never reuse compositions
- ✅ Make Grav the action protagonist, not a bystander
- ✅ Keep it absurd but structurally clear
- ✅ Use color sparingly — when in doubt, use black
- ❌ Don't make PPT infographics or formal flowcharts
- ❌ Don't add title bars or decorative frames
- ❌ Don't let Grav touch the ground or stand on surfaces
- ❌ Don't make Grav cute, smiling, or emoji-like
Common Pitfalls
Problem: Illustration looks like a PPT slide
Solution: Remove 30% of elements, increase whitespace, make it weirder
Problem: Grav is just standing next to the action
Solution: Redesign so Grav IS the mechanism — becomes the funnel, dangles from the lever, is suspended inside the machine
Problem: Same metaphor as a previous illustration
Solution: Replace the physical object entirely — same concept, different analogy
Prompt Template
Fill in each {variable} from the shot list, then feed the result to your image generator (Step 3).
Generate one standalone 16:9 horizontal article illustration.
Visual DNA:
Pure white background. Minimalist black hand-drawn line art. Slightly wobbly pen lines. Lots of empty white space. Sparse red/orange/blue handwritten English annotations. Clean absurd product-sketch feeling. No gradients, no shadows, no paper texture, no complex background, no commercial vector style, no PPT infographic look, no cute mascot poster, no children's illustration, no realistic UI.
Recurring IP character required:
Grav, a small round floating figure with dot eyes, a single thin bent antenna with a tiny circle tip, thin dangling stick legs that never touch surfaces, and a slightly uneven hand-drawn body shape. Grav always hovers slightly above any surface — there is always a visible gap between Grav and the ground. Grav must perform the core conceptual action, not decorate the scene. Make Grav calm, deadpan, focused, and slightly bizarre — not cute.
Theme:
{theme of this illustration}
Structure type:
{one of: Workflow / System Closeup / Before-After / Role States / Conceptual Metaphor / Layered Method / Map Route / Mini Comic}
Core idea:
{the one thing this image must convey}
Composition:
{specific scene: where is Grav, what is Grav doing, what are the main objects, how does information flow}
Suggested elements:
{element 1} / {element 2} / {element 3} / {element 4}
English handwritten labels:
{label 1} / {label 2} / {label 3} / {label 4} / {optional label 5}
Color use:
Black for main line art and Grav. Orange for main flow/path/arrows. Red only for key warnings/problems/results. Blue only for secondary notes or feedback/system state.
Constraints:
One image explains only one core structure. Keep the main subject around 40%-60% of the canvas. Preserve at least 35% white space. No title bar at the top. No border or frame. Maximum 5-8 annotation labels. Each label is 2-5 words. The style should feel like a senior engineer's casual whiteboard sketch — absurd, clean, memorable.
QA Checklist
Run every generated image against these. Regenerate or edit on any failure.
Must pass:
- 16:9 landscape format
- Clean white background (no cream, texture, gradient, shadow, or noise)
- Grav is present and floating (visible gap between body and any surface)
- Grav performs the core action — not decoration
- Composition is an original metaphor for the current article
- One core structure per image; main subject ≤ ~60% of canvas, 35%+ whitespace
- Annotations are sparse (3–5, max 8), short (2–5 words), and readable
- Color discipline: orange = flow/arrows only, red = highlights/problems/results only, blue = notes/feedback only
Regenerate if:
- A title bar or section label appears on the image
- Grav looks like a mascot/emoji, is grounded, or is idle decoration
- Layout resembles a PPT slide, course material, or formal flowchart
- More than ~8 elements/arrows/nodes, or text blocks instead of short labels
- Background has texture/shadow/gradient/cream tint, or realistic UI appears
- Composition is too similar to a previously generated illustration
Additional Resources
Attribution
Adapted from vssinghh/article-illustrations.
Copyright (c) 2025 Vipin Singh. Licensed under the MIT License.
1---2name: article-illustrations3description: Generate hand-drawn 16:9 article illustrations featuring the Grav character IP. Turns article concepts into memorable whiteboard-sketch explanations with a recurring floating character, sparse annotations, and absurd metaphors.4---5
6# Article Illustrations — Grav Hand-Drawn Style
7
8## Overview
9
10Generate 16:9 landscape hand-drawn illustrations for articles, blog posts, and technical content. Each illustration captures one cognitive anchor point from an article and turns it into a clean, absurd, memorable whiteboard-sketch explanation.
11
12The skill uses a recurring character IP called **Grav**: a small, round, always-floating figure with dot eyes and a thin antenna. Grav participates in the core action of every illustration — never just decoration.
13
14**Repository:** [vssinghh/article-illustrations](https://github.com/vssinghh/article-illustrations)
15
16## Use this skill when
17
18- Writing articles, blog posts, or documentation that need inline illustrations
19- Turning abstract concepts into concrete visual metaphors
20- Establishing a consistent visual language across multiple articles
21- Producing hand-drawn explanation sketches, not PPT infographics
22
23## Do not use this skill when
24
25- You need polished, corporate-style PPT infographics or formal flowcharts
26- You do not want a recurring character IP (Grav) featured in the illustrations
27- You require animated, 3D, or realistic interface mockups instead of whiteboard sketches
28
29## Instructions
30
31### Step 1: Digest the Article
32
33Read the article and identify cognitive anchor points — core judgments, turning points, input/output loops, before/after contrasts, and common pitfalls. Don't distribute illustrations evenly; prioritize moments that benefit from visual explanation.
34
35### Step 2: Plan a Shot List
36
37For each illustration, define:
38- **Placement**: After which section
39- **Theme**: What this image is about
40- **Core Meaning**: The one idea it conveys
41- **Structure Type**: One of 8 composition patterns (Workflow, System Closeup, Before/After, Role States, Conceptual Metaphor, Layered Method, Map Route, Mini Comic)
42- **Grav's Action**: What Grav is doing in the scene
43- **Annotation Labels**: 3–5 short English labels
44
45### Step 3: Generate Images
46
47Fill in the [Prompt Template](#prompt-template) below with the shot-list details and generate one image per illustration. Use whatever image-generation capability is available in your environment — a built-in `generate_image` tool, an MCP image server, or simply by emitting the filled-in prompt for the user to paste into their own generator. Generate each image separately; never combine illustrations. Every image follows strict style rules:
48- Pure white background, no textures
49- Black hand-drawn line art with slight wobble
50- Sparse red/orange/blue handwritten annotations
51- Grav always floating (never touching surfaces)
52- One core idea per image
53- 40–60% canvas usage, 35%+ whitespace
54
55### Step 4: QA Check
56
57Run each image against the [QA Checklist](#qa-checklist) below. If it fails any must-pass item or shows a failure signal, regenerate or request an edit.
58
59## Examples
60
61### Example 1: Plan illustrations for an article
62
63```
64Analyze this article and create a shot list of 5 illustrations.
65Don't generate images yet — just plan which cognitive anchor points
66deserve illustrations and what each image should convey.
67
68<paste article>
69```
70
71### Example 2: Generate illustrations directly
72
73```
74Generate 4 Grav-style illustrations for this article.
75Requirements: 16:9 landscape, pure white background, black hand-drawn
76line art, sparse red/orange/blue English annotations.
77
78<paste article>
79```
80
81### Example 3: Single concept illustration
82
83```
84Generate one 16:9 illustration for this concept:
85"Trust isn't declared — it's built one piece of evidence at a time."
86Grav must perform the core action. Keep labels sparse — aim for 3–5.
87```
88
89### Example 4: Iterate on a result
90
91```
92This illustration is on the right track, but Grav feels like decoration.
93Keep the core meaning but regenerate: make Grav the one actually
94driving the structure.
95```
96
97## Visual Style
98
99| Element | Rule |
100|:--------|:-----|
101| Background | Pure white — no cream, texture, gradients, or shadows |
102| Line art | Black, hand-drawn, slightly wobbly, not mechanical |
103| Whitespace | Main subject 40–60% of canvas, 35%+ empty space |
104| Annotations | Handwritten English, 2–5 words each, max 5–8 per image |
105| Color: Black | Main line art, characters, structures, objects |
106| Color: Red | Key highlights, problems, warnings, results |
107| Color: Orange | Main flow, paths, arrows, direction |
108| Color: Blue | Supplementary notes, feedback, system state |
109| Prohibited | Green, purple, yellow, pink, gradients, drop shadows, 3D, realistic UI |
110
111## Character: Grav
112
113- Small round body (pebble/potato shape)
114- Two dot eyes (slightly asymmetric)
115- One thin bent antenna with tiny circle tip
116- Thin stick legs that dangle without touching surfaces
117- Always hovering — visible gap between Grav and any surface
118- Expression: calm, focused, deadpan
119- Role: active participant in the system, never decoration
120
121## Best Practices
122
123- ✅ Start with a shot list before generating images
124- ✅ Invent a new metaphor for every illustration — never reuse compositions
125- ✅ Make Grav the action protagonist, not a bystander
126- ✅ Keep it absurd but structurally clear
127- ✅ Use color sparingly — when in doubt, use black
128- ❌ Don't make PPT infographics or formal flowcharts
129- ❌ Don't add title bars or decorative frames
130- ❌ Don't let Grav touch the ground or stand on surfaces
131- ❌ Don't make Grav cute, smiling, or emoji-like
132
133## Common Pitfalls
134
135- **Problem:** Illustration looks like a PPT slide
136 **Solution:** Remove 30% of elements, increase whitespace, make it weirder
137
138- **Problem:** Grav is just standing next to the action
139 **Solution:** Redesign so Grav IS the mechanism — becomes the funnel, dangles from the lever, is suspended inside the machine
140
141- **Problem:** Same metaphor as a previous illustration
142 **Solution:** Replace the physical object entirely — same concept, different analogy
143
144## Prompt Template
145
146Fill in each `{variable}` from the shot list, then feed the result to your image generator (Step 3).
147
148```
149Generate one standalone 16:9 horizontal article illustration.
150
151Visual DNA:
152Pure white background. Minimalist black hand-drawn line art. Slightly wobbly pen lines. Lots of empty white space. Sparse red/orange/blue handwritten English annotations. Clean absurd product-sketch feeling. No gradients, no shadows, no paper texture, no complex background, no commercial vector style, no PPT infographic look, no cute mascot poster, no children's illustration, no realistic UI.
153
154Recurring IP character required:
155Grav, a small round floating figure with dot eyes, a single thin bent antenna with a tiny circle tip, thin dangling stick legs that never touch surfaces, and a slightly uneven hand-drawn body shape. Grav always hovers slightly above any surface — there is always a visible gap between Grav and the ground. Grav must perform the core conceptual action, not decorate the scene. Make Grav calm, deadpan, focused, and slightly bizarre — not cute.
156
157Theme:
158{theme of this illustration}
159
160Structure type:
161{one of: Workflow / System Closeup / Before-After / Role States / Conceptual Metaphor / Layered Method / Map Route / Mini Comic}
162
163Core idea:
164{the one thing this image must convey}
165
166Composition:
167{specific scene: where is Grav, what is Grav doing, what are the main objects, how does information flow}
168
169Suggested elements:
170{element 1} / {element 2} / {element 3} / {element 4}
171
172English handwritten labels:
173{label 1} / {label 2} / {label 3} / {label 4} / {optional label 5}
174
175Color use:
176Black for main line art and Grav. Orange for main flow/path/arrows. Red only for key warnings/problems/results. Blue only for secondary notes or feedback/system state.
177
178Constraints:
179One image explains only one core structure. Keep the main subject around 40%-60% of the canvas. Preserve at least 35% white space. No title bar at the top. No border or frame. Maximum 5-8 annotation labels. Each label is 2-5 words. The style should feel like a senior engineer's casual whiteboard sketch — absurd, clean, memorable.
180```
181
182## QA Checklist
183
184Run every generated image against these. Regenerate or edit on any failure.
185
186**Must pass:**
187- 16:9 landscape format
188- Clean white background (no cream, texture, gradient, shadow, or noise)
189- Grav is present and floating (visible gap between body and any surface)
190- Grav performs the core action — not decoration
191- Composition is an original metaphor for the current article
192- One core structure per image; main subject ≤ ~60% of canvas, 35%+ whitespace
193- Annotations are sparse (3–5, max 8), short (2–5 words), and readable
194- Color discipline: orange = flow/arrows only, red = highlights/problems/results only, blue = notes/feedback only
195
196**Regenerate if:**
197- A title bar or section label appears on the image
198- Grav looks like a mascot/emoji, is grounded, or is idle decoration
199- Layout resembles a PPT slide, course material, or formal flowchart
200- More than ~8 elements/arrows/nodes, or text blocks instead of short labels
201- Background has texture/shadow/gradient/cream tint, or realistic UI appears
202- Composition is too similar to a previously generated illustration
203
204## Additional Resources
205
206- **Upstream source / example gallery:** [vssinghh/article-illustrations](https://github.com/vssinghh/article-illustrations) — [example illustrations](https://github.com/vssinghh/article-illustrations#examples)
207
208## Attribution
209
210Adapted from [vssinghh/article-illustrations](https://github.com/vssinghh/article-illustrations).
211Copyright (c) 2025 Vipin Singh. Licensed under the MIT License.