gemini-infographic.

The whiteboard infographic is the format that earned this skill its track record. The visual reads as a photograph of a real notebook page in marker pen, slightly imperfect, fully handwritten. gemini-infographic is the skill that wraps that aesthetic in a structured brief-and-approval workflow so the writer can see what the image will say before paying for the generation.

The whiteboard infographic style is doing one specific job. It looks like a real artifact, the kind of notes the writer might have actually scribbled on their own page, which makes the post feel more candid than a polished editorial graphic would. The style is hard to fake convincingly without explicit prompt engineering, which is why the prompt this skill produces is detailed enough to land it on the first generation most of the time.

§01What it does

The skill takes any source content (a post, a newsletter section, a blog excerpt, raw notes) and produces a brief in plain language: a six-word-or-fewer title, an optional one-line subtitle, a core structural choice (steps, framework, comparison, stats, list), three to seven bullets at ten words or fewer each, and visual suggestions for arrows, boxes, highlighted numbers, and icon placements.

That brief is the approval gate. The writer reads it, edits anything that looks wrong, and types generate to continue. Only then does the skill output the full Gemini prompt, which inserts the brief into a fixed template that handles the whiteboard texture rules: marker pens (black, blue, red, green) and highlighters (yellow, orange), slightly imperfect lines with ink texture, hand-printed lettering throughout, and a 1080×1350 vertical layout. The footer carries the writer's name and a Follow ... for more helpful content | Repost ♻️ line in the same hand-drawn style.

§02The approval gate is what makes the skill economical

Image generation is cheap per image and expensive when the writer keeps regenerating. The brief-first, prompt-after pattern this skill enforces costs nothing in time and removes most of the regeneration loop, because the structural decisions (what the title says, how many bullets, what the core shape is) get made before the model commits to a generation.

The other useful side effect is that the brief becomes a reusable artifact. The same brief can be regenerated in a different style (branded, editorial) by handing it to gemini-carousel or quote-post, which means a single approval gate produces multiple format options downstream.

§03Setup

# Trigger phrases:
#   "whiteboard infographic"
#   "gemini infographic"
#   "hand-drawn graphic"
#   "turn this into a whiteboard"

The output prompt goes into a Gemini chat with Create Image enabled and Nano Banana selected, generated at 1080×1350. No API key needed; the writer pastes the prompt into the Gemini UI directly.

§04Caveats

Bullets longer than ten words break the legibility of the whiteboard format at the scale most LinkedIn readers see it. The skill enforces the cap during brief generation. Resist the urge to extend during the approval pass.

The footer line is non-negotiable in the prompt template. The recycle symbol and the Repost word are part of the format's call-to-action grammar; removing them undermines the share rate the format is optimised for.